A novel solid electrolyte formed by NASICON-type Li3Zr2Si2PO12and poly(vinylidene fluoride) for solid state batteries

Autor: Gao, Jingxiong, Wu, Jie, Han, Songyi, Zhang, Jingze, Zhu, Lei, Wu, Yongmin, Zhao, Jinbao, Tang, Weiping
Zdroj: Functional Materials Letters (FML); April 2021, Vol. 14 Issue: 3
Abstrakt: Owing to their high ionic conductivity and excellent flexibility, composite polymer electrolytes (CPEs) have been widely studied in solid lithium metal batteries (SLMBs). In this study, a new solid electrolyte of NASICON-type Li3Zr2Si2PO12(LZSP) was prepared by the sol–gel method, and then a new type of CPE membrane containing LZSP and Poly(vinylidene fluoride) (PVDF) was synthesized by slurry-casting method. The CPE membrane presented much higher ionic conductivity of 5.66 × 10−5S ⋅ cm−1at 25∘C and stronger electrochemical stability compared to the one without LZSP. In addition, the cells containing the composite electrolyte membrane exhibited considerable rate performance and cycle performance.
Databáze: Supplemental Index