Electrochemical performance of sulfide solid electrolyte Li10GeP2S12 synthesized by a new method

Autor: Jing Hu, Lili Zhao, Qing Zhang, Yongping Zhu, Ying Chu, Weihua Wan
Rok vydání: 2019
Předmět:
Zdroj: Materials Letters. 248:153-156
ISSN: 0167-577X
DOI: 10.1016/j.matlet.2019.04.022
Popis: Solid electrolyte Li10GeP2S12 (LGPS) was successfully synthesized by optimizing the mechanical ball milling process and subsequent heat treatment process using Li, Ge, P and S as raw materials. The synthesis method has the advantages of low cost, simple process, short cycle and high efficiency. The synthesized LGPS possesses regular morphology and uniform particle distribution without agglomeration. Simultaneously, it presents a wide electrochemical voltage window of over 6.0 V (vs. Li+/Li), a low activation energy Ea of 25.5 kJ mol−1 and the room temperature conductivity σLi of 3.27 × 10−3 S cm−1. The synthesized LGPS solid electrolyte exhibits good electrochemical stability and compatibility with lithium metal electrodes, making it possible to apply in all solid state batteries.
Databáze: OpenAIRE