Attapulgite Enhanced Polyethylene Oxide-Polyvinylidene Difluoride-Based Composite Solid-State Electrolyte for All Solid State Li-Ion Batteries

• DOI: 10.1166/sam.2024.4677
• Publication Date: 2024-05-13T07:05:50Z
• Authors: Jie Chang; Yazhou Kong; Yunpeng Zhu; Yikai Gao; Canhuang Xie; Yu Chen; Wei Qian; Shihang Hu; Guang Hu; Jianxiong Wang; Huanjun Lu; Weiwei Hu; Kailong Zhang
• Keywords: Difluoride; Polyethylene oxide; Polyvinylidene fluoride

We report an attapulgite-modified poly(ethylene oxide) (PEO) based solid-state composite electrolyte film by solution casting method. The influence of attapulgite and polyvinylidene difluoride (PVDF) on the electrical properties PEO-based electrolytes was investigated it is found that optimal 3% 10% PVDF in (0.9PEO-0.1PVDF-LiClO4-3% attapulgite) exhibited a high ionic conductivity 2.55×10 −4 S cm −1 at room temperature electronic 2.25×10 −11 . Furthermore, LiFePO 4 /0.85PEO-0.15PVDF-LiClO -3% attapulgite/Li all-solid battery promising initial discharge capacity 120 mAh g , even after 10 cycles 0.1 C, specific values remained above 60