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Surface Degradation of Single-crystalline Ni-rich Cathode and Regulation Mechanism by Atomic Layer Deposition in Solid-State Lithium Batteries
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2022-10-01 , DOI: 10.1002/anie.202211626
Hui-Juan Guo 1, 2, 3 , Yipeng Sun 4 , Yang Zhao 4 , Gui-Xian Liu 1, 3 , Yue-Xian Song 1, 3 , Jing Wan 1, 3 , Ke-Cheng Jiang 5 , Yu-Guo Guo 1, 3 , Xueliang Sun 4 , Rui Wen 1, 3
Affiliation  

Insights into the surface mechanism on the single-crystalline LiNi0.5Co0.2Mn0.3O2 (SC-NCM) cathode are disclosed by in situ atomic force microscopy in solid-state batteries. Via atomic layer deposition, the Li3PO4 is introduced to coat SC-NCM, leading to the uniform formation of LiF-rich cathode electrolyte interphase and suppression of undesired side reaction, which endows batteries with enhanced interfacial stability, durability and dynamics.

中文翻译:

固态锂电池中单晶富镍正极的表面降解及原子层沉积调控机制

通过固态电池中的原位原子力显微镜揭示了对单晶 LiNi 0.5 Co 0.2 Mn 0.3 O 2 (SC-NCM) 阴极表面机制的洞察。通过原子层沉积,将 Li 3 PO 4引入涂覆 SC-NCM,导致均匀形成富含 LiF 的阴极电解质界面并抑制不需要的副反应,从而赋予电池增强的界面稳定性、耐久性和动力学。
更新日期:2022-10-01
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