Anode material, electrochemical device and electronic device comprising the same
AssigneeNingde Amperex Technology Limited
InventorsDaoyi Jiang, Zhihuan Chen, Hang Cui, Yuansen Xie
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Abstract
An anode material includes a silicon composite substrate. In the X-ray diffraction pattern of the anode material, the highest intensity at 2θ within the range of 28.0° to 29.0° is I2, and the highest intensity at 2θ within the range of 20.5° to 21.5° is I1, wherein 0<I2/I1≤1. The anode material has good cycle performance, and the battery prepared with the anode material has better rate performance and a lower swelling rate.
Claims18
An anode material, comprising a silicon composite substrate, wherein in an X-ray diffraction pattern of the anode material, the highest intensity at 2θ within the range of 28.0° to 29.0° is I2, and the highest intensity at 2θ within the range of 20.5° to 21.5° is I1, wherein 0<I2/I1≤1, wherein the Dv50 of the silicon composite substrate is from 2.5 μm to 10 μm, and a particle size distribution of the silicon composite substrate meets:
- 0.3≤Dn10/Dv50≤0.6.
An anode, comprising an anode material, the anode material comprises a silicon composite substrate, wherein in an X-ray diffraction pattern of the anode material, the highest intensity at 2θ within the range of 28.0° to 29.0° is I2, and the highest intensity at 2θ within the range of 20.5° to 21.5° is I1, wherein 0<I2/I1≤1, wherein the Dv50 of the silicon composite substrate is from 2.5 μm to 10 μm, and a particle size distribution of the silicon composite substrate meets:
- 0.3≤Dn10/Dv50≤0.6.
Dependencies are inferred from the claim text.