电池单体及其制备方法、电池装置、用电装置、储能装置
By setting through holes on the aluminum sheet and connecting the circumferential sidewall flanges with the lower plastic snap-fit part, the problem of insufficient connection reliability of large-size battery cell top cover assembly is solved, realizing efficient and low-cost battery cell production and improving the connection stability and cleanliness of battery cells.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG JINKO ENERGY STORAGE CO LTD
- Filing Date
- 2026-03-17
- Publication Date
- 2026-07-17
AI Technical Summary
In existing battery cell top cover assemblies, the connection between the lower plastic and the aluminum sheet is not reliable enough in large or long cells, leading to warping and assembly gap problems. In addition, traditional fixing methods pose risks of electrolyte contamination and metal shavings residue.
The structure employs a circumferential sidewall flange with through holes on a light aluminum sheet, which engages with the lower plastic part. The flange is formed through stamping and stretching processes, avoiding the use of adhesives, simplifying the production process and improving connection reliability.
This enhances the structural integrity of the large-size battery cell top cover assembly, reduces assembly gaps, avoids adhesive contamination and metal shavings residue, improves production efficiency, and reduces manufacturing costs.
Smart Images
Figure CN121885876B_ABST