Half-Covered 'Glitter-Cake' AM@SE Composite: A Novel Electrode Design for High Energy Density All-Solid-State Batteries.

ABSTRACT: All-solid-state batteries (ASSBs) are pursued due to their potential for better safety and high energy density. However, the energy density of the cathode for ASSBs does not seem to be satisfactory due to the low utilization of active materials (AMs) at high loading. With small amount of solid electrolyte (SE) powder in the cathode, poor electrochemical performance is often observed due to contact loss and non-homogeneous distribution of AMs and SEs, leading to high tortuosity and limitation of lithium and electron transport pathways. Here, we propose a novel cathode design that can achieve high volumetric energy density of 1258 Wh L^-1 at high AM content of 85 wt% by synergizing the merits of AM@SE core-shell composite particles with conformally coated thin SE shell prepared fro

SUBMITTER: Kim MJ 

PROVIDER: S-EPMC11775378 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature