Mitigating the Kinetic Hindrance of Single‐Crystalline Ni‐Rich Cathode via Surface Gradient Penetration of Tantalum

• Published in: Angewandte Chemie International Edition Vol. 60; no. 51; pp. 26535 - 26539
• Main Authors: Zou, Yu‐Gang, Mao, Huican, Meng, Xin‐Hai, Du, Ya‐Hao, Sheng, Hang, Yu, Xiqian, Shi, Ji‐Lei, Guo, Yu‐Guo
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 13.12.2021
• Edition: International ed. in English
• Subjects: Cathodes; Crystal structure; Crystallinity; Density functional theory; kinetic hindrance; Li-ion batteries; Lithium-ion batteries; Ni-rich cathode; Nickel; Oxidation; Specific capacity; surface doping; Tantalum; Valence

Single‐crystalline Ni‐rich cathodes are promising candidates for the next‐generation high‐energy Li‐ion batteries. However, they still suffer from poor rate capability and low specific capacity due to the severe kinetic hindrance at the nondilute state during Li+ intercalation. Herein, combining exp...