Anode material and battery
AssigneesBtr New Material Group Co., Ltd., Dingyuan New Energy Technology Co., Ltd.
InventorsYiming KONG, Chunlei PANG, Songtao GUO, Jianguo REN, Xueqin HE
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Abstract
Provided is anode material and battery. The anode material includes silicon, and at least a portion of the silicon is present in the form of crystalline silicon. Based on a mass content of the silicon in the anode material being 100%, a mass content of the crystalline silicon is A %, and an average silicon grain size of the crystalline silicon is B nm. The anode material satisfies the following features: 0.3≤A/B≤60 and 6≤A+B≤75. According to the anode material and the battery provided in the present disclosure, the anode material can achieve an ideal balance among cycling performance, capacity utilization, and rate performance.
Claims18
An anode material, wherein:
- the anode material contains silicon, and at least a portion of the silicon is present in the form of crystalline silicon;
- based on a mass content of silicon in the anode material being 100%, a mass content of the crystalline silicon is A %, and an average silicon grain size of the crystalline silicon is B nm;
- and
- the anode material satisfies the following features:
- 0.3≤A/B≤60 and 6≤A+B≤75.
Dependencies are inferred from the claim text.