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US 11,387,447 B2Granted
Silicon negative electrode sheet, manufacturing method thereof and lithium ion battery
AssigneeBeijing Xiaomi Mobile Software Co., Ltd.
InventorsSihong Du, Zongqiang Wang
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Abstract
A silicon negative electrode sheet includes: a current collector; and at least two active coatings containing negative active materials, which are sequentially coated on the current collector. Through holes are formed on the active coating along the thickness direction and are arranged at intervals. The liquid holding capacity of the silicon negative electrode sheet and the charging capacity of a silicon negative electrode can be improved.
Claims18
A silicon negative electrode sheet, comprising:
- a current collector;
- and
- at least two active coatings containing negative active materials, sequentially coated over the current collector;
- wherein through holes are formed along a thickness direction of the active coatings and are arranged at intervals over the active coatings, and
- the through holes of adjacent active coatings are arranged in a staggered form.
2 more elements
A lithium ion battery, comprising a silicon negative electrode sheet, wherein
- the silicon negative electrode sheet comprises:
- a current collector;
- and
- at least two active coatings containing negative active materials, sequentially coated over the current collector;
- wherein through holes are formed along a thickness direction of the active coatings and are arranged at intervals over the active coatings, and
- the through holes of adjacent active coatings are arranged in a staggered form.
3 more elements
Dependencies are inferred from the claim text.