Scientists reduce all-solid-state battery resistance by heating

https://techxplore.com/news/2022-01-scientists-all-solid-state-battery-resistance.html

"lithium negative electrode, an LiCoO2 positive electrode, and an Li3PO4 solid electrolyte... exposed the LiCoO2 surface to air, nitrogen (N2), oxygen (O2), carbon dioxide (CO2), hydrogen (H2), and water vapor (H2O) for 30 minutes... Only H2O vapor strongly degrades the Li3PO4-LiCoO2 interface... heat treatment at 150°C for an hour... Amazingly, this reduced the resistance down to 10.3 Ω cm2, comparable to that of the unexposed battery"