Bulk/Interfacial Structure Design of Li-Rich Mn-Based Cathodes for All-Solid-State Lithium Batteries.

ABSTRACT: Li-rich Mn-based cathode materials (LRMO) are promising for enhancing energy density of all-solid-state batteries (ASSBs). Nonetheless, the development of efficient Li⁺/e^- pathways is hindered by the poor electrical conductivity of LRMO cathodes and their incompatible interfaces with solid electrolytes (SEs). Herein, we propose a strategy of in-situ bulk/interfacial structure design to construct fast and stable Li⁺/e^- pathways by introducing Li₂WO₄, which reduces the energy barrier for Li⁺ migration and enhances the stability of the surface oxygen structure. The reversibility of oxygen redox was improved, and the voltage decay of the LRMO cathode was addressed significantly. As a result, the bulk str

SUBMITTER: Kong WJ 

PROVIDER: S-EPMC11488500 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature