Constructing a Thin Disordered Self‐Protective Layer on the LiNiO2 Primary Particles Against Oxygen Release (Adv. Funct. Mater. 6/2023)

作者：Chen Jinniu; Yang Yang; Tang Yushu; Wang Yifan; Li Hang; Xiao Xianghui; Wang Suning; Darma Mariyam Susana Dewi; Etter Martin; Missyul Alexander; Tayal Akhil; Knapp Michael; Ehrenberg Helmut; Indris Sylvio; Hua Weibo

来源：Advanced Functional Materials, 2023, 33(6).

DOI：10.1002/adfm.202370034

• chemomechanical degradation
• LiNiO 2 cathodes
• oxygen release
• self‐protecting layers
• tomography

LiNiO2 Cathodes(#br)In article number 2211515, Weibo Hua and co‐workers depict that oxygen ions are gradually released from surface lattice of LiNiO2 (R3ˉ$\bar{3}$m) cathode material upon electrochemical cycling, resulting in the formation of a macroporous architecture and the reduction of nickel ions. Such chemomechanical degradation can be effectively mitigated through introducing a thin lattice‐coherent disordered Li1‐xNi1+xO2 phase in the primary particle surface.