Solid Power, Inc.
EXHIBIT 10.1
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<DESCRIPTION>EXHIBIT 10.1
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<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="text-align: right; margin: 0"><B>Exhibit 10.1</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CERTAIN IDENTIFIED INFORMATION HAS BEEN EXCLUDED
FROM THE EXHIBIT&nbsp;BECAUSE IT IS BOTH (I)&nbsp;NOT MATERIAL AND (II)&nbsp;WOULD BE COMPETITIVELY HARMFUL IF PUBLICLY DISCLOSED. [*
* *] INDICATES THAT INFORMATION HAS BEEN REDACTED.</B></P>



<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">AMENDMENT NO. 4<BR>
to<BR>
JOINT DEVELOPMENT AGREEMENT<BR>
between</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>BMW OF NORTH AMERICA, LLC</B><BR>
300 Chestnut Ridge Road<BR>
Woodcliff Lake, NJ 07677<BR>
USA<BR>
hereinafter referred to as &ldquo;BMW&rdquo;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">and</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SOLID POWER OPERATING,&nbsp;INC.</B><BR>
486 S. Pierce Ave., Suite&nbsp;E<BR>
Louisville, CO 80027<BR>
USA<BR>
hereinafter referred to as &ldquo;Solid Power&rdquo;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Joint Development Agreement (&ldquo;<B>JDA</B>&rdquo;)
entered into as of July&nbsp;1, 2017 and amended on February&nbsp;18, 2021 (&ldquo;<B>Amendment No.&nbsp;1</B>&rdquo;), March&nbsp;22,
2021 (&ldquo;<B>Amendment No.&nbsp;2</B>&rdquo;) and November&nbsp;01, 2021 (&ldquo;<B>Amendment No.&nbsp;3</B>&rdquo;) by and between
Solid Power Operating,&nbsp;Inc. (f/k/a Solid Power,&nbsp;Inc.), with a principal place of business at 486 S. Pierce Ave., Suite&nbsp;E,
Louisville, CO 80027, USA (&ldquo;<B>Solid Power</B>&rdquo;), and BMW of North America, LLC, a Delaware limited liability company with
a principal place of business at 300 Chestnut Ridge Road, Woodcliff Lake, NJ 07677, USA (&ldquo;<B>BMW</B>&rdquo;), collectively the
 &ldquo;<B>Parties</B>,&rdquo; shall be amended as set forth in this amendment (&ldquo;<B>Amendment No.&nbsp;4</B>&rdquo;) to the JDA.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The terms and conditions of the Previously Amended
JDA remain unchanged and in full force and effect, including the industrialization roadmap and methodology as set out in Amendment No.&nbsp;2
of the JDA. This Amendment No.&nbsp;4 shall only establish additional terms and conditions for an additional Know-How Transfer Work Package
further defined below.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Unless specified differently in this Amendment
No.&nbsp;4, the capitalized terms shall have the meaning as defined in the Previously Amended JDA. If the context requires otherwise,
references to the singular also include the plural and vice versa.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>For this Amendment No.&nbsp;4 the following
RECITALS shall additionally apply:</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>WHEREAS,</B> Solid Power develops, among other
things, solid state cell technology as part of the JDA Automotive Product development and operates two solid state cell pilot lines;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>WHEREAS, </B>BMW and its Affiliates intend
to ramp up its solid state cell competency and to set up an solid state prototype line (the &ldquo;<B>BMW Pilot Line</B>&rdquo;);</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>WHEREAS</B>, it is the common understanding
of the Parties that the rights of use granted in Sect.&nbsp;3 of the Previously Amended JDA include the rights of each Party and any
of its Affiliates to conduct their own research and development activities in the field of solid state cell technology;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>WHEREAS, </B>the Parties intend to further
accelerate the development of the solid state cell technology by strengthening the collaboration among the Parties and their Affiliates;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>WHEREAS, </B>BMW and its Affiliates seek Solid
Power&rsquo;s support to accelerate their know-how ramp up (i.e., at BMW and at BMW&rsquo;s Affiliates) in the field of solid state cell
technology, particularly regarding research and development including prototype production of solid state cells;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>WHEREAS, </B>Solid Power offered to BMW and
its Affiliates to support their know-how ramp up in solid state cell technology by an extensive know-how transfer;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>WHEREAS, </B>the Parties seek to carry out
an additional work package considered as part of the JDA Project with the aim of transferring certain know-how from Solid Power to BMW
and its Affiliates that relates to the development as well as prototype and pilot production of solid state cells [* * *]; and</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>WHEREAS, </B>BMW and its Affiliates will support
the development at Solid Power by sending qualified personnel [* * *] to Solid Power;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>NOW, THEREFORE</B>, for good and valuable
consideration, receipt of which is hereby acknowledged, the Parties agree as follows:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>1.</B></TD><TD STYLE="text-align: justify"><B>Scope</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The subject-matters of this Amendment No.&nbsp;4
are</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">(i)&nbsp;the implementation of an additional
work package having the purpose of transferring the Solid Power Know-How and publicly available information related thereto from Solid
Power to BMW and its Affiliates with the aim to</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">(A)&nbsp;enable BMW and its Affiliates
to ramp up their know-how in the field of solid state cell technology, particularly in the area of Solid Power Know-How, and to support
Solid Power&rsquo;s solid-state cell technology development beyond the present scope of the JDA by sending BMW personnel to Solid Power
and</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">(B)&nbsp;allow BMW and its Affiliates
to participate and assist in the development activities at Solid Power,</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">the activities of this Section&nbsp;1
(i)&nbsp; being the &ldquo;<B>Know-How Transfer Work Package</B>&rdquo;;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">(ii)&nbsp;the allowance for BMW and its Affiliates
to purchase, on a non-exclusive basis, electrolyte supply from Solid Power for the BMW Pilot Line; and</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">(iii)&nbsp;the enablement of BMW and Solid Power
to engage in joint development at multiple locations.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>2.</B></TD><TD STYLE="text-align: justify"><B>Definitions</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">2.1</TD><TD STYLE="text-align: justify">&ldquo;<B>Previously Amended JDA</B>&rdquo;
                                            means the JDA and Annexes to the JDA as amended by Amendments No.&nbsp;1, 2 and 3.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">2.2</TD><TD STYLE="text-align: justify">&ldquo;<B>BMW Know-How Transfer Personnel</B>&rdquo;
                                            means personnel of BMW or any of its Affiliates working at the Colorado sites of Solid Power
                                            pursuant to Section&nbsp;5.2.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">2.3</TD><TD STYLE="text-align: justify"><B>&ldquo;Solid Power Know-How&rdquo;</B>
                                            means the information related to the development as well as prototype and pilot production
                                            of solid state cells utilizing sulfide-based solid electrolytes; said information a) has
                                            either actual or potential independent economic value by virtue of not being generally known,
                                            b) has value to others who cannot legitimately obtain the information, and c) is subject
                                            to reasonable efforts to maintain its secrecy.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">2.4</TD><TD STYLE="text-align: justify">&ldquo;<B>Subcontractors</B>&rdquo; means
                                            any third party working on behalf of a Party or any of its Affiliates and being bound by
                                            the same or similar confidentiality obligations as the Parties and shall not include any
                                            entities in direct competition with the business of the other Party. [* * *]</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">2.5</TD><TD STYLE="text-align: justify">&ldquo;<B>BMW Improvements</B>&rdquo; means
                                            the Sole Foreground IP owned by BMW or any of its Affiliates that is directed to technical
                                            improvements (in whole or in part) on the use of the Solid Power Know-How.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">2.6</TD><TD STYLE="text-align: justify">&ldquo;<B>Sole Foreground IP</B>&rdquo; means
                                            (a)&nbsp;the Intellectual Property that is first developed and reduced to practice within
                                            the activities and during the term of this Amendment No.&nbsp;4 solely by employees or Subcontractors
                                            of a Party or by employees or Subcontractors of any of its Affiliates, and (b)&nbsp;all associated
                                            Intellectual Property Rights protecting the foregoing Intellectual Property.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">2.7</TD><TD STYLE="text-align: justify"><B>&ldquo;Joint Foreground IP&rdquo; </B>means
                                            (a)&nbsp;the Intellectual Property that is first developed and reduced to practice within
                                            the activities and during the term of this Amendment No.&nbsp;4 jointly by employees of both
                                            Parties or their respective Subcontractors or their respective Affiliates, and <FONT STYLE="font-size: 10pt">(b)
all associated Intellectual Property Rights protecting the foregoing Intellectual Property.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">2.8</TD><TD STYLE="text-align: justify">&ldquo;<B>Joint Onsite Foreground IP</B>&rdquo;
                                            means (a)&nbsp;the Intellectual Property conceived or developed during the know-how transfer
                                            onsite at the premises of Solid Power jointly by employees of both Parties or their respective
                                            Subcontractors or their respective Affiliates, and (b)&nbsp;all associated Intellectual Property
                                            Rights protecting the foregoing Intellectual Property.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>3.</B></TD><TD STYLE="text-align: justify"><B>Details of the Know-How Transfer
                                            Work Package</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">3.1</TD><TD STYLE="text-align: justify"><U>Know-How Transfer</U>. Solid Power shall
                                            provide to BMW and its Affiliates extensive information (including but not limited to the
                                            information listed in Section&nbsp;A of Annex 1 and Annex 2) relating directly or indirectly
                                            to the Solid Power Know-How,</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">that</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">[* * *]</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">independent of whether such information:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-align: justify">a) is considered to be Solid Power&rsquo;s
Sole Foreground IP or Joint Foreground IP or Solid Power&rsquo;s Background IP; or</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-align: justify">b) is not protected by an Intellectual
Property Right; or</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-align: justify">c) constitutes know-how, technical
information, trade secrets, work products, methods, processes, schematics, or other forms of technology; or</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-align: justify">d) constitutes publicly available
information.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">The Know-How Transfer under this Section&nbsp;3.1
shall not include information relating to the Solid Power proprietary electrolyte itself, and no rights in the Solid Power proprietary
electrolyte itself or any Intellectual Property Rights protecting the Solid Power proprietary electrolyte itself are granted to BMW or
its Affiliates.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">3.2</TD><TD STYLE="text-align: justify">[* * *]</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">3.3</TD><TD STYLE="text-align: justify"><U>Updates to Solid Power Know-How</U>. During
                                            the term of this Amendment No.&nbsp;4, Solid Power will provide to BMW and its Affiliates
                                            any information relating to any change, optimization or advancements to the Solid Power Know-How,
                                            which shall be governed by this Amendment No.&nbsp;4 (e.g. Section&nbsp;6.1 of this Amendment
                                            No.&nbsp;4 will apply to ownership and Section&nbsp;3.4 and Section&nbsp;6.2 will apply for
                                            use rights).</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">3.4</TD><TD STYLE="text-align: justify"><U>License to information provided by Solid
                                            Power within the Know-How Transfer Work Package.</U></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(i)</TD><TD STYLE="text-align: justify">Solid Power hereby grants to BMW a non-exclusive,
                                            non-transferrable, irrevocable, worldwide, royalty-free license to use the information provided
                                            by Solid Power within the Know-How Transfer Work Package and to use any Intellectual Property
                                            and any Intellectual Property Right protecting said information. The license under the preceding
                                            sentence shall be limited solely to research and development activities of BMW or its Affiliates
                                            in the field of solid state cell technology.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(ii)</TD><TD STYLE="text-align: justify">[* * *]</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(iii)</TD><TD STYLE="text-align: justify">[* * *]</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">For the avoidance of doubt, BMW or any of its
Affiliates are allowed to use royalty-free, at any time and without any permission and for any purpose any publicly available information
provided by Solid Power within the Know-How Transfer Work Package to BMW or any of its Affiliates if and to the extent said information
is not protected by an Intellectual Property Right.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">3.5</TD><TD STYLE="text-align: justify"><U>BMW Improvements</U>.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(i)</TD><TD STYLE="text-align: justify">BMW and its Affiliates shall disclose
                                            to Solid Power the BMW Improvements and any invention contained in the BMW Improvements conceived
                                            or reduced to practice during the term of this Amendment No.&nbsp;4 but only if and to the
                                            extent BMW and its Affiliates are entitled under applicable commitments with third parties
                                            (including but not limited to commitments with funding authorities of public funded projects
                                            and/or with co-owners) to disclose said BMW Improvements to Solid Power.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(ii)</TD><TD STYLE="text-align: justify">BMW or any of its Affiliates (the granting
                                            entity is at BMW&rsquo;s discretion) shall grant to Solid Power a non-exclusive, non-transferrable,
                                            irrevocable, worldwide, royalty-free license to use the BMW Improvements. [* * *]</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(iii)</TD><TD STYLE="text-align: justify">Said license to be granted under Section&nbsp;3.5
                                            (ii)&nbsp;shall be limited solely to research and development activities of Solid Power in
                                            the field of solid state cell technology.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(iv)</TD><TD STYLE="text-align: justify">Upon Solid Power&rsquo;s request, BMW
                                            or any of its Affiliates (the granting entity is at BMW&rsquo;s discretion) shall grant to
                                            Solid Power a non-exclusive, non-transferable, irrevocable, worldwide and royalty-bearing
                                            license to use the BMW&nbsp;Improvements. [*&nbsp;*&nbsp;*]. The details of the foregoing
                                            commercial license will be negotiated in good faith on commercially-reasonable terms and
                                            will be the subject of a separate agreement.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(v)</TD><TD STYLE="text-align: justify">For the avoidance of doubt: Solid Power
                                            shall not have the right to sublicense the foregoing license without BMW&rsquo;s written
                                            prior consent.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">3.6</TD><TD STYLE="text-align: justify"><U>No Liability, Warranty</U>. Solid Power
                                            makes no representation or warranty, and assumes no liability, with respect to the Solid
                                            Power Know-How or BMW&rsquo;s or its Affiliates&rsquo; use thereof. BMW, on behalf of itself
                                            and its Affiliates, expressly accepts the Solid Power Know-How on an &ldquo;AS IS&rdquo;
                                            basis without any warranty or liability to Solid Power.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">BMW makes no representation or warranty,
and assumes no liability, with respect to the any information and/or use right provided by BMW, its Affiliates and/or its Subcontractors
for Solid Power&rsquo; or its Affiliates&rsquo; use thereof. Solid Power, on behalf of itself and its Affiliates, expressly accepts any
information and/or use right provided by BMW, its Affiliates and/or its Subcontractors on an &ldquo;AS IS&rdquo; basis without any warranty
or liability to BMW, its Affiliates and/or its Subcontractors.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">3.7</TD><TD STYLE="text-align: justify"><U>Retention of Documentation</U>. Subject
                                            to the restrictions on use of the Solid Power Know-How by BMW and its Affiliates specified
                                            in this Amendment No.&nbsp;4 (see, e.g., Sect. 3.4 and 3.7), any documentation included in
                                            the Know-How Transfer Work Package that is handed over to BMW and its Affiliates will remain
                                            with BMW and its Affiliates after Termination. Solid Power is not entitled to ask for said
                                            documentation back.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>4.</B></TD><TD STYLE="text-align: justify"><B>Electrolyte Supply</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">4.1</TD><TD STYLE="text-align: justify"><U>Short-Term Pilot Line Electrolyte Supply</U>.
                                            [* * *] Not later than [* * *], Solid Power and BMW shall enter into a non-exclusive supply
                                            agreement for the supply of Solid Power&rsquo;s sulfide-based electrolyte powder to BMW and
                                            its Affiliates at the required volumes and quality to effectively operate the BMW Pilot Line
                                            upon commissioning. Each of Solid Power and BMW shall use commercially reasonable efforts
                                            and good faith to negotiate and consummate the short-term supply agreement. Commercial terms
                                            and conditions of such supply agreement shall be negotiated in good faith prior to the first
                                            delivery (see Sect. <B>B</B> of <B>Annex 1</B>). The Parties agree that any electrolyte provided
                                            pursuant to this Sect. 4.1 shall not be considered JDA Automotive Product under the JDA.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">4.2</TD><TD STYLE="text-align: justify"><U>Long-Term Electrolyte Requirements for
                                            Industrialization</U>. In connection with any decision by BMW or its Affiliates to commercialize
                                            sulfide-based solid state battery technology based in whole or in part on Solid Power Know-How,
                                            Solid Power and BMW intend to collectively define electrolyte performance, quality, and other
                                            applicable requirements that support the needed cell performance and manufacturing targets
                                            as set out in the tender process in the Previously Amended JDA (&ldquo;<B>Electrolyte Requirements</B>&rdquo;).
                                            BMW will state the required BMW volumes of electrolyte to be provided by Solid Power to ensure
                                            Solid Power has the needed production capacity to meet the Electrolyte Requirements.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>5.</B></TD><TD STYLE="text-align: justify"><B>Development Collaboration</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">5.1</TD><TD STYLE="text-align: justify"><U>Support, Training, and Joint Development</U>.
                                            In connection with the transfer of Solid Power Know-How, Solid Power and BMW and its Affiliates
                                            will undertake the support ([* * *]) and joint development activities. The undertaken support
                                            and the joint development activities include the activities set forth in the statement of
                                            work in <B>Sect. C of Annex 1</B> and any subsequent amendments or supplements thereto agreed
                                            to by the Parties.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">5.2</TD><TD STYLE="text-align: justify"><U>BMW Know-How Transfer Personnel</U>. BMW
                                            or its Affiliates will send the BMW Know-How Transfer Personnel to Solid Power to (i)&nbsp;carry
                                            out certain of the activities contemplated by the statement of work set forth in <B>Sect.
                                            C of Annex 1 </B>and (ii)&nbsp;collaborate on development activities at Solid Power. [* *
                                            *]</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>6.</B></TD><TD STYLE="text-align: justify"><B>Intellectual Property</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">6.1</TD><TD STYLE="text-align: justify"><U>Ownership of Intellectual Property</U>.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(i)</TD><TD STYLE="text-align: justify">Each Party or any of its Affiliates
                                            shall solely and exclusively own its Sole Foreground IP.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(ii)</TD><TD STYLE="text-align: justify">The Parties shall jointly own Joint
                                            Foreground IP unless said Joint Foreground IP is Joint Onsite Foreground IP.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(iii)</TD><TD STYLE="text-align: justify">Joint Onsite Foreground IP shall be
                                            owned solely and exclusively by Solid Power. BMW or its Affiliates shall assign all right,
                                            title, and interest in their share in any and all Joint Onsite Foreground IP to Solid Power
                                            [* * *].</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">6.2</TD><TD STYLE="text-align: justify"><U>Use Rights in Intellectual Property</U></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(i)</TD><TD STYLE="text-align: justify">[* * *]</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(ii)</TD><TD STYLE="text-align: justify">[* * *]</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(iii)</TD><TD STYLE="text-align: justify">[* * *]</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(iv)</TD><TD STYLE="text-align: justify">[* * *]</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(v)</TD><TD STYLE="text-align: justify">[* * *]</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>7.</B></TD><TD STYLE="text-align: justify"><B>Confidentiality</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">For the avoidance of doubt, the Solid Power Know-How
constitutes Confidential Information under the NDA.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>8.</B></TD><TD STYLE="text-align: justify"><B>Industrialization</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">[* * *]</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>9.</B></TD><TD STYLE="text-align: justify"><B>Compensation</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Solid Power&rsquo;s activities and obligations
under this Amendment No.&nbsp;4, as well as the grant of the use rights by Solid Power to BMW and/or any of its Affiliates under this
Amendment No.&nbsp;4 shall be fully compensated by BMW paying the total amount of US $20 million to Solid Power according to the schedule
and milestones as defined in Sect. E of Annex 1 of this Amendment No.&nbsp;4.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>10.</B></TD><TD STYLE="text-align: justify"><B>Export Control Matters</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">As a foreign national (non-U.S. citizen without
U.S. permanent resident, refugee, or asylee status), BMW understands access to the Solid Power Know-How constitutes an export of technical
data/software from the United States and is governed by U.S. export control laws, including the Export Administration Regulations (&ldquo;<B>EAR</B>&rdquo;).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">BMW agrees to, and agrees to compel its Affiliates
to, comply with the EAR as they pertain to any technical data or computer software to which BMW or its Affiliates has access. BMW, on
behalf of itself and its Affiliates, hereby certifies that, without U.S. Government authorization, neither BMW nor its Affiliates shall
knowingly disclose, export, or reexport directly or indirectly, any such technical data/computer software, and in particular neither
BMW nor its Affiliates will export it without prior U.S. Government authorization to any of the following nations or nationals thereof:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in; text-indent: -1in">Country Group E:1/E:2 (Cuba,&nbsp;Iran,
North Korea, Syria) or the Crimea Region, or</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in; text-align: justify; text-indent: -1in">Country Group D:1
(Armenia, Azerbaijan, Belarus, Burma/Myanmar, Cambodia, China (PRC including Hong Kong), Georgia,&nbsp;Iraq, Kazakhstan, North Korea,
Kyrgyzstan, Laos, Libya, Macau, Moldova, Mongolia, Russia, Tajikistan, Turkmenistan, Ukraine, Uzbekistan, Venezuela, Vietnam, Yemen).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">BMW, on behalf of itself and its Affiliates,
agrees to be bound by future modifications of the foregoing list by amendments to the EAR or other U.S. laws and regulations.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">In addition, BMW acknowledges, on behalf of itself
and its Affiliates, certain software BMW or its Affiliates has access to during the term of this Amendment No.&nbsp;4 may contain encryption
functionality controlled for Encryption Item (&ldquo;<B>EI</B>&rdquo;) purposes by the EAR, which is subject to additional export control
restrictions. Neither BMW nor its Affiliates will use such software for any purpose other than internal company use, which includes the
development of new software products. Unless notified of the appropriate authorization, neither BMW nor its Affiliates will export, re-export,
or transfer such software to any other destination or end-user outside the United States or Canada.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>11.</B></TD><TD STYLE="text-align: justify"><B>Term</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Parties agree that this Amendment No.&nbsp;4
shall become effective upon signature by both Parties and have retroactive effect as of 1<SUP>st</SUP> November, 2022 (&ldquo;<B>Effective
Date</B>&rdquo;).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">For the avoidance of doubt, the term as set out
in the Previously Amended JDA shall also apply to this Amendment No.&nbsp;4.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Sections 3.2, 3.4, 3.5, 3.7 and 6 shall survive
the termination of the Amendment No.&nbsp;4 and/or the termination of the Previously Amended JDA.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>12.</B></TD><TD STYLE="text-align: justify"><B>Conflicts</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">To the extent that any provisions of this Amendment
No.&nbsp;4 conflict with provisions in the Previously Amended JDA, the provisions of this Amendment No.&nbsp;4 shall prevail.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">[Signature Page&nbsp;Follows]</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>IN WITNESS WHEREOF</B>, each of the parties
has caused its duly authorized representative to execute this Amendment No.&nbsp;4 to the Agreement as of the Effective Date.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 47%; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Solid Power
    Operating,&nbsp;Inc.</FONT></TD>
    <TD STYLE="width: 6%">&nbsp;</TD>
    <TD STYLE="width: 47%; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">BMW of North
    America, LLC</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ David B. Jansen</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: justify">/s/ <FONT STYLE="text-transform: none; background-color: rgb(255, 255, 255)">Raymond
    Wittmann</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Signature</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Signature</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">David B. Jansen</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: justify">Raymond
    Wittmann</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Printed Name</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Printed Name</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">President</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: justify">CFO </TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">December&nbsp;16, 2022</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">December&nbsp;20, 2022</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date Signed</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date Signed</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Derek C. Johnson</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: justify">/s/ <FONT STYLE="font-size: 10pt; font-style: normal; font-weight: normal; text-transform: none">Sebastian
    <FONT STYLE="font-family: Times New Roman, Times, Serif">Mackensen</FONT></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Signature</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Signature</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Derek C. Johnson, PhD</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: justify">Sebastian
    <FONT STYLE="font-family: Times New Roman, Times, Serif">Mackensen</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Printed Name</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Printed Name</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief Operating Officer</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: justify">President
    &amp; CEO </TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">December&nbsp;16, 2022</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">December&nbsp;20, 2022</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date Signed</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date Signed</FONT></TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Annex 1</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">A.</TD><TD STYLE="text-align: justify"><B>Solid Power Know-How</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The information contained in the following Dossiers
constitutes Solid Power&rsquo;s Know-How being provided to BMW. In addition, information obtained, whether written or oral, by BMW personnel
deployed under Section&nbsp;D of Annex 1 at Solid Power can be considered Solid Power Know-How that can be practiced by BMW as outlined
in this Amendment No.&nbsp;4.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD STYLE="width: 13%; border: Black 1pt solid; text-align: center"><B>Dossier ID</B>&nbsp;</TD>
    <TD STYLE="width: 41%; border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><B>Document
    Package Title</B>&nbsp;</TD>
    <TD STYLE="width: 21%; border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><B>Revision
    Date</B>&nbsp;</TD>
    <TD STYLE="width: 25%; border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Date
Provided</B>&nbsp;<B>or<BR>
Finalized Version To Be <BR>
Provided</B></P></TD></TR>
  <TR>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid"><FONT STYLE="font-size: 10pt">[*
    * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: right"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: right"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD></TR>
  <TR>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid"><FONT STYLE="font-size: 10pt">[*
    * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: right"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: right"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD></TR>
  <TR>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid"><FONT STYLE="font-size: 10pt">[*
    * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: right"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: right"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD></TR>
  <TR>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid"><FONT STYLE="font-size: 10pt">[*
    * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: right">&#8239;&nbsp;</TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: right"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD></TR>
  <TR>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid"><FONT STYLE="font-size: 10pt">[*
    * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: right">&#8239;&nbsp;</TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: right"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD></TR>
  <TR>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid"><FONT STYLE="font-size: 10pt">[*
    * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#8239;&nbsp;</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: right"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD></TR>
  <TR>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid"><FONT STYLE="font-size: 10pt">[*
    * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#8239;&nbsp;</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: right"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD></TR>
  <TR>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid"><FONT STYLE="font-size: 10pt">[*
    * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#8239;&nbsp;</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: right"><FONT STYLE="font-size: 10pt">[* * *]</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Detailed list of information to be contained
in the above-mentioned Dossers has been prepared by BMW personnel and are contained in Annex 2. The Dossiers have, at a minimum the BMW
requested information, and contain additional Solid Power Know-How that will be provided to BMW as governed by this Amendment 4.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>B.</B></TD><TD STYLE="text-align: justify"><B>Short-Term Electrolyte Supply Agreement
                                            (&sect;5)</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">High-level supply agreement terms are as follows:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">i)</TD><TD STYLE="text-align: justify">[* * *] to ensure Solid Power can supply
                                            said electrolyte powder from Solid Power&rsquo;s electrolyte prototype line at SP2.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">ii)</TD><TD STYLE="text-align: justify">Pricing as well as [* * *] will be negotiated
                                            in good faith before [* * *]. Supply of electrolyte to commence upon commissioning of the
                                            BMW Pilot Line.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">iii)</TD><TD STYLE="text-align: justify">Initial electrolyte specifications
                                            will be provided by Solid Power to BMW and modifications to the specification will be discussed
                                            and implemented based on learnings and cell performance data collected as part of the activities
                                            contemplated by this Amendment No.&nbsp;4. The initial specification and mutually agreed
                                            upon modifications to the initial specification will be the basis for negotiating the Electrolyte
                                            Requirements as referenced in section 4.2.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>C.</B></TD><TD STYLE="text-align: justify"><B>Support to BMW and Development Collaboration
                                            Activities</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Objectives:</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-align: justify">[* * *]</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B><U>BMW Roles and Responsibilities:</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in">[* * *]</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B><U>Solid Power Roles and Responsibilities:</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in">[* * *]</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B><U>Joint Roles and Responsibilities:</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in">[* * *]</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><U>Deliverable Schedule</U></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">[* * *]</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>D.</B></TD><TD STYLE="text-align: justify"><B>BMW Know-How Transfer Personnel</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">BMW or its Affiliates will embed the following
personnel at Solid Power:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">[* * *]</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>E.</B></TD><TD STYLE="text-align: justify"><B>Compensation</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">BMW shall pay the following amounts to Solid
Power upon the completion of the success criteria highlighted below on or before the dates listed assuming said criteria are successfully
achieved:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="font-size: 10pt; font-weight: bold; border-bottom: Black 1pt solid">Due Date</TD><TD STYLE="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Payment Amount</TD><TD STYLE="padding-bottom: 1pt; font-size: 10pt; font-weight: bold">&nbsp;</TD><TD STYLE="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Success Criteria</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 72%; font-size: 10pt">December&nbsp;31, 2022</TD><TD STYLE="width: 1%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 1%; font-size: 10pt; text-align: left">$</TD><TD STYLE="width: 12%; font-size: 10pt; text-align: right">6,000,000</TD><TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 1%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 12%; font-size: 10pt; text-indent: -0.25in; padding-left: 18.5pt"><FONT STYLE="font-size: 10pt">&bull;<FONT STYLE="font-family: Symbol">&#9;</FONT>[* * *]</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="font-size: 10pt">January&nbsp;1, 2023 &ndash; December&nbsp;31, 2023</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">$</TD><TD STYLE="font-size: 10pt; text-align: right">9,500,000</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-indent: -0.25in; padding-left: 0.25in"><FONT STYLE="font-size: 10pt">&bull;<FONT STYLE="font-family: Symbol">&#9;</FONT>[* * *]</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font-size: 10pt">January&nbsp;1, 2024 &ndash; June&nbsp;30, 2024</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">$</TD><TD STYLE="font-size: 10pt; text-align: right">4,500,000</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-indent: -0.25in; padding-left: 0.25in"><FONT STYLE="font-size: 10pt">&bull;<FONT STYLE="font-family: Symbol">&#9;</FONT>[* * *]</FONT></TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Annex 2</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">[ * * * ]</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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