Negative active material, negative electrode, and energy storage device
AssigneeXiamen Hithium Energy Storage Technology Co., Ltd.
InventorsFuxi PENG, Qin Zhang
Life of this patent
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Abstract
A negative active material includes a porous structure having micropores, mesopores, and macropores, where a pore volume of the negative active material satisfies: 0.5%≤V1/V2≤2% and 30%≤V2/(V2+V3)≤50%, where V1 represents a pore volume of the micropores in the negative active material, V2 represents a pore volume of the mesopores in the negative active material, and V3 represents a pore volume of the macropores in the negative active material.
Claims20
A negative active material, comprising a porous structure having micropores, mesopores, and macropores, wherein a pore volume of the negative active material satisfies:
- 0.5%≤V1/V2≤2% and 30%≤V2/(V2+V3)≤50%, wherein V1 represents a pore volume of the micropores in the negative active material, V2 represents a pore volume of the mesopores in the negative active material, and V3 represents a pore volume of the macropores in the negative active material.
A negative electrode, comprising a current collector and an active material layer disposed on at least one surface of the current collector, the active material layer comprising a negative active material, wherein
- the negative active material comprises a porous structure having micropores, mesopores, and macropores, wherein a pore volume of the negative active material satisfies:
- 0.5%≤V1/V2≤2% and 30%≤V2/(V2+V3)≤50%, wherein V1 represents a pore volume of the micropores in the negative active material, V2 represents a pore volume of the mesopores in the negative active material, and V3 represents a pore volume of the macropores in the negative active material.
An energy storage device, comprising a negative active material, wherein
- the negative active material comprises a porous structure having micropores, mesopores, and macropores, wherein a pore volume of the negative active material satisfies:
- 0.5%≤V1/V2≤2% and 30%≤V2/(V2+V3)≤50%, wherein V1 represents a pore volume of the micropores in the negative active material, V2 represents a pore volume of the mesopores in the negative active material, and V3 represents a pore volume of the macropores in the negative active material.
Dependencies are inferred from the claim text.