Preparation of Li_2S-P_2S_5 solid electrolyte from N-methylformamide solution and application for all-solid-state lithium battery

摘要

Electrode-solid electrolyte composite materials for all-solid-state lithium batteries were prepared by coating of the Li_2S-P_2S_5 solid electrolyte onto LiCoO_2 particles using a N-methylformamide (NMF) solution of 80Li_2S 20P_2S_5 (mol%) solid electrolyte. SEM and EDX analysis showed that the Li_2S-P_2S_5 solid electrolyte was uniformly coated on LiCoO_2 particles. The all-solid-state cell using the LiCoO_2 particles coated with the solid electrolyte showed higher charge-discharge capacity than the cells using uncoated LiCoO_2 particles.