Diaphragm, battery and electric equipment
By setting up a protruding portion on the separator and the etching recess of the electrode sheet, the problems of uneven burning edges, powder loss and large gaps of the battery after laser etching are solved, the cycle life of the battery is extended, and the safety performance and capacity retention rate are improved.
CN222637563UActive Publication Date: 2025-03-18JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD
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Patent Information
- Application Number
- CN202420685399.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-04-03
AI Technical Summary
Technical Problem
After the laser etching of the electrode sheet coating, problems such as uneven burning edges, powder loss, and large assembly gaps occur, which affects the cycle life and safety performance of the battery.
Method used
A diaphragm is designed, including a diaphragm body and a protruding portion, which cooperates with the etched recesses of the pole sheet to enhance the contact area between the diaphragm and the pole sheet, and avoid large gaps and powder loss problems.
Benefits of technology
Through the convex and concave combination of the diaphragm and the electrode sheet, the uneven problem after laser etching is alleviated, the cycle life and safety performance of the battery are improved, and the capacity retention rate is improved.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model relates to the technical field of batteries, in particular to a diaphragm, a battery and electric equipment, the diaphragm comprises a diaphragm body and a lug boss, the lug boss is connected with the diaphragm body, and the lug boss is used for being matched with a pole piece. According to the diaphragm, the battery and the electric equipment disclosed by the utility model, the convex part is arranged on the diaphragm body, so that the diaphragm body with the convex part can be matched with the pole piece comprising the etched concave part in a concave-convex manner; the long circulation capability of the battery is effectively improved, the service life of the battery is prolonged, the safety performance of the battery is improved, the capacity retention rate of the battery is improved, and the production and preparation efficiency is improved.
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