“…Some other polymer matrices have also been widely studied until now such as polyacrylonitrile (PAN), poly(ethylene oxide) (PEO), poly(methyl methacrylate) (PMMA), etc. However, in terms of mechanical strength, ionic conductivity, and electrochemical stability, these polymer electrolytes can hardly meet the comprehensive requirement of commercial lithium ion batteries, i.e., poly(methyl methacrylate)-based electrolyte suffers from poor mechanical properties, polyacrylonitrile-based electrolyte exhibits poor compatibility with lithium anode, − and poly(ethylene oxide)-based electrolyte has a narrow electrochemical window below 4.0 V vs Li + /Li. More recently, great efforts have been made to develop novel polymer electrolyte matrices, such as poly(propylene carbonate), , poly(ethylene carbonate), − poly-α-cyanoacrylate, , and so on.…”