Unravelling electro-chemo-mechanical interplay in layered oxide cathode degradation in solid-state batteries.

ABSTRACT: Solid-state batteries (SSBs) hold notable promise for advancing energy storage technologies. However, their commercial viability is limited by the poor cycle stability and complex degradation mechanism. This study underscores the pivotal role of electro-chemo-mechanical interactions in driving the failure of SSBs. Leveraging advanced x-ray imaging and spectroscopy techniques, we analyzed LiNi_0.8Mn_0.1Co_0.1O₂ (NMC811) cathodes from cycled Li_xIn||Li₆PS₅Cl (LPSC)||NMC811 SSBs, uncovering the interplay between microstructure, chemical heterogeneity, mechanical characteristics, and electrochemical performance. Our results show that revealing electro-chemo-mechanical interactions is essential to develop strategies

SUBMITTER: Zheng X 

PROVIDER: S-EPMC12506959 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature