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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