极片及电池的制备方法
By coating an equally spaced active layer onto a foil and cutting a tab preparation layer, a battery cell can be directly formed, solving the problems of low efficiency and high cost in the traditional dual-wound battery cell manufacturing process, and achieving efficient and low-cost battery production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIAMEN HITHIUM ENERGY STORAGE TECHNOLOGY CO LTD
- Filing Date
- 2024-01-15
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional dual-wound battery cells have low manufacturing efficiency and high manufacturing costs, mainly because the two wound cells need to be manufactured separately and welded together with the same electrode tab using an adapter plate.
By coating an equally spaced active layer on a foil and cutting a tab preparation layer in the blank area, a pre-formed positive and negative electrode sheet is manufactured. The battery cell is then formed directly by winding or stacking, eliminating the need for an adapter sheet, simplifying the production process and reducing the number of parts.
It improved production efficiency, reduced equipment costs, simplified production processes, reduced the number of parts, and enhanced the manufacturing efficiency and current carrying capacity of battery cells.
Smart Images
Figure CN117894911B_ABST