Btr New Material Group Co., Ltd.

Daofu Zhang

Peng He

Jianguo Ren

Xueqin He

Haihui Zhou

Hang Dong

Youyuan Huang

Anode material, preparation method thereof, and battery. Anode material includes graphite and carbon layer located on at least part of surface of graphite. Particle surface and particle section of anode material are respectively tested by Raman spectroscopy, peak area ratio of D characteristic peak within range of 1300 cmto 1350 cmto G characteristic peak within range of 1500 cmto 1580 cmis I/I, ratio of I/Imeasured on the particle surface is A, and ratio of I/Imeasured on particle section is B, and 1.22<A-B≤2.10. Particle surface of anode material is tested by adopting atomic force microscopy, 1 μm×1 μm test region is randomly selected on particle surface of anode material, arithmetic average value of height deviation absolute values relative to reference surface in test region is S nm, where 15 nm≤S≤60 nm. Anode material improves lithium-ion transport kinetics, initial Coulombic efficiency, and cycle performance.

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Shenzhen, China

Daofu Zhang