Footnote of interest:
#Quantumscape membranes are baked on a “setter plate” made of the following raw materials:
“YSZ, graphite, Mg—SZ, zirconia, SiO2, Al2O3, nickel, lithium-stuffed garnet, a sacrificial lithium-stuffed garnet film, LiAlO2, LiLaO2, or Li2ZrO3.”