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Research Status of Ni-rich Ternary Cathode Materials for Lithium Ion Batteries

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, , Citation Xiaohui Li et al 2020 IOP Conf. Ser.: Earth Environ. Sci. 603 012032 DOI 10.1088/1755-1315/603/1/012032

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hyxie@gzu.edu.cn

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1 College of Material and Metallurgy, Guizhou University, Guiyang, 550025, China

2 Guizhou Province Key Laboratory of Metallurgical Engineering and process Energy Saving, Guiyang, 550025, China

3 State Key Laboratory of Pressure Hydrometallurgical Technology of Associated Nonferrous Metal Resources, 650503, China

4 Kunming Metallurgy Research Institute, Kunming, 650500, China

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1755-1315/603/1/012032

Abstract

Ternary cathode material LiNixCoyMn1-x-yO2(NCM) has been widely studied as a kind of cathode material with high voltage, high theoretical capacity, good cycling performance and high thermal stability, which is one of the most popular cathode materials for lithium ion battery. Nickle-rich NCM (⩾0.5) can meet the market demand for high-specific capacity power batteries due to its high nickel content and large charge-discharge capacity, But the safety and thermal stability are poor. Therefore, this paper mainly studies how to obtain Ni-rich NCM with high specific capacity and good thermal stability from three aspects of precursor preparation, surface coating and doping.

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10.1088/1755-1315/603/1/012032