Enhancing Cycle Stability in LiNiO₂ with Phase transition suppression via Crystalline Disordered Surface Layer.

ABSTRACT: Ni-rich layered oxides are promising cathode materials for lithium-ion batteries but require improved stability to meet performance demands. To address this, doping and surface modification are commonly employed stabilization strategies, each offering distinct benefits. Doping primarily suppresses phase transitions, thereby reducing volume changes, while surface coatings protect the material by minimizing continuous reactions with electrolytes during cycling. Consequently, these approaches are often used in combination to enhance material stability. This study demonstrates that a crystalline disordered surface layer can effectively suppress structural changes without doping. Notably, the thickness of the disordered surface layer is successfully controlled during synthesis for the first tim

SUBMITTER: Choi S 

PROVIDER: S-EPMC12520496 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature