Cell and lithium-ion secondary battery
AssigneeZhuhai Cosmx Battery Co., Ltd.
InventorsJiao Li, Jialin Fang
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Abstract
The disclosure provides a cell and a lithium-ion secondary battery. The cell includes a positive electrode plate, a separator, and a negative electrode plate. The negative electrode plate includes a negative electrode current collector and a negative electrode active material layer, wherein a surface of the negative electrode active material layer is provided with a first recess, the first recess has a depth H in μm, the cell has a length L in mm, and the cell has a width W in mm; and H, L and W satisfy: 0.05H≤L/W≤0.5H.
Claims11
A cell, comprising a positive electrode plate, a separator, and a negative electrode plate, the negative electrode plate comprising a negative electrode current collector and a negative electrode active material layer, wherein a surface of the negative electrode active material layer is provided with a first recess,
- the first recess has a depth H in μm, the cell has a length L in mm, and the cell has a width W in mm;
- and H, L and W satisfy:
- 0.05H≤L/W≤0.5H.
Dependencies are inferred from the claim text.