hexafluorophosphate
... that the lithium salt of the hexafluorophosphate anion is a common electrolyte in lithium-ion batteries?
... that the <a href="./Lithium_hexafluorophosphate" id="mwCB8" rel="mw:WikiLink" title="Lithium hexafluorophosphate">lithium salt</a> of the <b id="mwCCA"><a href="./Hexafluorophosphate" id="mwCCE" rel="mw:WikiLink" title="Hexafluorophosphate">hexafluorophosphate</a></b> <a href="./Ion" id="mwCCI" rel="mw:WikiLink" title="Ion">anion</a> is a common <a href="./Electrolyte" id="mwCCM" rel="mw:WikiLink" title="Electrolyte">electrolyte</a> in <a href="./Lithium-ion_battery" id="mwCCQ" rel="mw:WikiLink" title="Lithium-ion battery">lithium-ion batteries</a>?