Stabilized cathode/sulfide solid electrolyte interface via Li2ZrO3 coating for all-solid-state batteries
High-capacity LiNi0.8Co0.1Mn0.1O2(NCM)cathode is essential for realizing high energy density all-solid-state lithium batteries.However,the space charge layer effect between NCM cathode and the commonly used sulfide solid electrolyte results in deterioration of the battery performance.In this work,a 10-nm electrochemical stable Li2ZrO3(LZO)layer was in situ coated on the sur-face of NCM particles through facile wet chemical method.The LZO coating layer is able to mitigate the side reactions at the electrode/electrolyte interface and enables fast lithium transport dynamics,significantly improving the battery performances.The all-solid-state lithium batteries with modified NCM cathode and Li6PS5Cl electrolyte deliver stable cyclic performance with capacity retention ratio of 72.2％at 0.1C for 300 cycles and 72.9％at 0.5C for 600 cycles under room temperature.This work provides a promising approach to achieve stable electrode/electrolyte interface and improve the cyclic performance of high energy density all-solid-state lithium batteries.
interface、coating、all-solid-state、batteries、cathode、electrolyte、stabilized、sulfide
41
TP391.9;O657.61;TQ630
2023-01-12（万方平台首次上网日期，不代表论文的发表时间）
共7页
3639-3645
