LiCoO[sub 2] Electrode Particles Coated with Li[sub 2]S–P[sub 2]S[sub 5] Solid Electrolyte for All-Solid-State Batteries

Electrode/electrolyte composite materials for all-solid-state lithium secondary batteries were prepared by coating the (mol %) solid electrolyte onto electrode particles using the pulsed laser deposition method. Cross-sectional transmission electron microscopy images showed that the solid electrolyte layer was formed on the particles. The all-solid-state cell using the particles coated with the solid electrolyte was charged and discharged, and exhibited good cycle performance. This suggests that the electrolyte coatings provide a lithium-ion conduction path to , and the technique is effective in the development of all-solid-state cells.