Abstract

The desilicated zeolite ZSM-5 (des-ZSM-5) based composite polymer electrolytes (CPEs) PZEw was fabricated via phase inversion processes and in-situ polymerization with polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP) and liquid electrolyte 1 M lithium bis(trifluoromethanesulphonyl)imide (LiTFSI) in vinylene carbonate (VC) (VC@LiTFSI). Assisted by des-ZSM-5, PZEw possess excellent thermal stability, mechanical properties, high ionic conductivity (2.75 × 10−4 S cm−1, 25 °C), and enlarged electrochemical windows (4.94 v, vs. Li+/Li). Meanwhile lithium metal batteries (LMBs) LiFePO4 (LFP)/PZEw/Li showed superior rate performance and long-time cycling stability.

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