PEO based polymer in plastic crystal electrolytes for room temperature high-voltage lithium metal batteries

Abstract Lithium metal coupled with high voltage cathodes has been extensively investigated to meet the demand for higher energy density batteries. However, only a few electrolytes are compatible with both lithium anode and high voltage LiNi0.5Mn0.3Co0.2O2. Pure poly(ethylene oxide) electrolyte shows high-stability against lithium metal but has limited oxidation stability (typically