Battery cell
CN224191200UActive Publication Date: 2026-05-01SUNGROW POWER SUPPLY CO LTD
View PDF 0 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUNGROW POWER SUPPLY CO LTD
- Filing Date
- 2025-04-11
- Publication Date
- 2026-05-01
AI Technical Summary
Technical Problem
In traditional square cell designs, the terminal assembly and pressure relief structure are located on the same cover plate, which requires additional insulation sheets, increasing costs and affecting safety.
Method used
The design employs a U-shaped wrapping film, with the main body of the insulating film covering the shell, the extension of the first insulating film covering the cover plate, and a notch formed at its edge to form a pressure relief hole, thus avoiding the need to install additional insulating sheets on the bottom cover.
Benefits of technology
This reduces the cost of the outer insulation coating material of the battery cell, while ensuring that the pressure relief process is not obstructed, thus improving the safety and insulation performance of the battery.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224191200U_ABST
Abstract
The utility model discloses a battery cell and relates to the technical field of batteries, the battery cell comprises a shell, a cover plate, a pressure relief structure and an insulating film, the cover plate is arranged at an opening of the shell, the pressure relief structure is arranged on the cover plate, and the insulating film comprises an insulating film main body and a first insulating film extension part; the edge of the first insulating film extension part is provided with a notch, the insulating film main body is coated on the shell, the first insulating film extension part is coated on the cover plate, and a pressure relief hole is formed through the notch; in the technical scheme provided by the embodiment of the invention, the shell is coated with the insulating film main body, and the first insulating film extension part is turned over to be vertical to the insulating film main body and attached to the cover plate of the battery cell, so that an insulating sheet does not need to be arranged on the cover plate, the coating cost of the outer insulating film is reduced, and the overall manufacturing cost of a single battery cell is reduced.
Need to check novelty before this filing date? Find Prior Art