材料科学
阴极
开裂
无定形固体
化学物理
兴奋剂
Crystal(编程语言)
结晶
机制(生物学)
化学工程
化学
结晶学
复合材料
计算机科学
光电子学
物理化学
物理
程序设计语言
工程类
量子力学
作者
Daoyuan Han,Jingzheng Weng,Xian Zhang,Qingsong Tong,Mengqi Zhu
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:2022-04-01
卷期号:169 (4): 040512-040512
被引量:3
标识
DOI:10.1149/1945-7111/ac60ee
摘要
Nickel-rich cathode has received much attention due to its high energy density, high capacity, low cost and environmental friendliness. The existence of intercrystalline microcracks in NCM seriously affects the structural stability and integrity of the battery crystal surface. Irreversible phase transitions result in changes in lattice parameters, the interface side reactions severely corrode the crystal surface, and secondary particle heterogeneity leads to uneven reactions. Common amorphous microcracks include single crystal, gradient doping, etc. This review first introduced the microcrack mechanism of NCM, and then summarized two solutions: single crystal and gradient doping. Finally, we presented new views and insights, and hope to give enlightenment on the subsequent inhibition of intercrystal microcrack, and construct the reasonable structure of NCM cathode.
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