Capacity Fading Mechanism and Modification Methods of Nickel-rich Ternary Cathode Materials

被引：0
|
作者：
Wang B. [1 ]
Zhang F. [1 ]
Ai L. [1 ]
Wang C. [1 ]
Li S. [1 ,2 ]
机构：
[1] Laboratory of Materials and Electroiyte for Lithium Batteries, School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou
[2] Key Laboratory of Salt Lake Resources Chemistry, Qinghai Salt Lake Institute, Chinese Academy of Sciences, Xining
来源：
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2020年 / 48卷 / 02期
关键词：
Capacity fading; Lithium ion battery; Modification method; Nickel-rich ternary cathode material; Phase transformation;
D O I：
10.14062/j.issn.0454-5648.20190353
中图分类号：
学科分类号：
摘要：
Nickel-rich ternary cathode materials are the preferred cathode materials for large power lithium ion batteries due to their high capacity and high power. However, high nickel ternary cathode materials have some disadvantages, such as poor cyclic stability and fast capacity fading. It is indicated that cationic mixing, precipitation of transition metal element, oxygen vacancy, etc. are direct factors causing the material phase transformation, while interfacial film, overcharge, microcrack, etc. can further accelerate the material capacity fading. The existing modification technologies, such as element doping, surface coating and material composite, can inhibit the capacity fading of materials. In this review, the capacity fading mechanism and modification methods of high nickel ternary materials in recent years were represented, and a outlook for its future development was prospected. © 2020, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.
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页码：195 / 203
页数：8
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