期刊论文

Liu, Q;Liu, Qi;He, H

英文

稀有金属(英文版)

1001-0521

2024

43

1

41-50

10.1007/s12598-023-02454-2

This study was financially supported by the National Key Ramp;D Program of China (No. 2020YFA0406203), Shenzhen Science and Technology Innovation Commission (Nos. JCYJ20180507181806316, JCYJ20200109105618137 and SGDX2019081623240948), the ECS scheme (Nos. [2020YFA0406203]; National Key Ramp;D Program of China [JCYJ20180507181806316, JCYJ20200109105618137, SGDX2019081623240948]; Shenzhen Science and Technology Innovation Commission [CityU21307019, 7005500, 7005615, 7005612, 7020043]; ECS scheme; Shenzhen Research Institute, City University of Hong Kong

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Lithium-ion batteries (LIBs) with extreme fast charging (XFC) capability are considered an effective way to alleviate range anxiety for electric vehicle (EV) buyers. Owing to the high ionic and electronic conductivity of LiNixCoyMnzO2 (x + y + z = 1, NCM) cathodes, the inevitable Li plating of graphite in NCM | graphite cell is usually identified as a key bottleneck for XFC LIBs. However, the capacity decay mechanism of cathode materials under XFC has not been fully investigated. In this work, three typical NCM cathode materials with different Ni fractions were chosen and their electrochemical...