Pole piece, battery cell and pole piece manufacturing equipment
By setting a large-volume first groove in the middle area of the electrode and a small-volume second groove in the edge area, and by using embossing roller manufacturing equipment, the problem of powder falling off the edge of the electrode after embossing is solved, thus improving the performance of the electrode and the battery cell.
CN224248595UActive Publication Date: 2026-05-15ZHEJIANG LIWINON ENERGY TECHNOLOGY CO LTD
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Patent Information
- Application Number
- CN202520509118.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-05-15
- Estimated Expiration
- 2035-03-21
AI Technical Summary
Technical Problem
After the embossing process, the edges of existing electrodes are prone to powdering due to excessive deformation of the concave and convex structure, which leads to a decrease in performance.
Method used
The electrode design features a large-volume first groove in the middle area and a small-volume second groove in the edge area, with the groove volume gradually decreasing. This is combined with embossing roller manufacturing equipment to form the corresponding structure.
Benefits of technology
This effectively prevents powder from falling off the edges of the electrode sheets, improving electrode performance and cell yield.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses a pole piece, battery cell and pole piece manufacturing equipment, the pole piece comprises a middle area and two edge areas, along the width direction of the pole piece, the two edge areas are respectively connected with the two ends of the middle area, the middle area is provided with a plurality of first grooves, and the first grooves are respectively connected with the two ends of the middle area. The edge area is provided with a plurality of first grooves, the edge area is provided with a plurality of second grooves, the orientation of an opening of each first groove is the same as that of an opening of each second groove, and the volume of each first groove is larger than that of each second groove. The pole piece disclosed by the utility model can effectively avoid the situation that powder falls off from the edge.
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