卷绕装置及电芯制作设备
By designing a structure in the winding device that allows the anode electrode to be longer than the cathode electrode in a single cut, the problems of low winding efficiency and low cutting accuracy of the battery cell in the prior art are solved, thereby improving battery safety and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIAMEN HITHIUM ENERGY STORAGE TECHNOLOGY CO LTD
- Filing Date
- 2023-10-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing winding devices require multiple cuts of the separator, cathode, and anode, resulting in low winding efficiency and low cutting accuracy, which affects the winding accuracy of the cell and may lead to lithium ion precipitation and the formation of lithium dendrites, causing battery thermal runaway.
A winding device is used to achieve a longer anode electrode than cathode electrode through a single cut. The cooperation of the first roller mechanism and the cutter ensures that the anode electrode is longer than the cathode electrode at the end of the cell, thereby improving cutting accuracy and efficiency.
This technology enables efficient winding of battery cells, reduces cutting time, improves cutting accuracy, avoids lithium ion precipitation, and enhances battery safety.
Smart Images
Figure CN117352860B_ABST