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A general route of fluoride coating on the cyclability regularity of high-voltage NCM cathodes
Huixian Xie1, Ziyang Liang, Dong Luo
1Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China. luodong@gdut.edu.cn zhanlin@gdut.edu.cn.
Abstract:
The effect of fluoride coatings, an effective approach to suppress HF corrosion, on the cycling stability of NCM523 cathodes is systematically studied. It is the first study to reveal that fluoride coatings significantly restrain interfacial reactions when, simultaneously, the fluoride suspension possesses an appropriate pH (near 4.0) and there is a small cation ionic radius.
