We note the XFC-cycled anode delaminated from the Cu CC which was likely exacerbated during sample preparation as seen in Figure . We believe that the varying anode morphology is a result of the formation of the plated metallic Li from extended XFC cycling at 9 C-rate for 450 cycles, which we have previously confirmed with XRD. In the present study, the plated, metallic Li was exposed to moisture during the pouch disassembly and/or subsequent sample handling and converted into lithium hydroxide (LiOH) as per Eq. 1 and confirmed by our XRD measurement (Figure ).