制造二次电池的设备及方法
By fixing the gas bag portion of the battery cell above the battery casing during the secondary battery manufacturing process, forming an exhaust port and releasing gas under vacuum, and using leak-proof and pre-sealed components to prevent electrolyte leakage, the problem of battery performance degradation caused by electrolyte leakage is solved, and battery performance stability is achieved.
CN114788061BActive Publication Date: 2026-07-17LG ENERGY SOLUTION LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LG ENERGY SOLUTION LTD
- Filing Date
- 2020-12-28
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
During the manufacturing of secondary batteries, the phenomenon of electrolyte being discharged to the outside of the battery casing leads to a deterioration in battery performance.
Method used
The battery unit is pressed and fixed by a fixing part, so that the air bag part is located above the main body of the battery casing. An exhaust hole is formed through the perforation part, the vacuum part releases the internal gas, the leak-proof part prevents electrolyte leakage, and the air bag part is sealed by the pre-sealing part.
Benefits of technology
It effectively releases internal gases, reduces electrolyte emissions to the outside, prevents battery performance degradation, and prevents electrolyte leakage during the sealing process.
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Smart Images
Figure CN114788061B_ABST
Abstract
本发明涉及一种制造二次电池的设备及方法。制造二次电池的设备包括：固定部，其配置为按压并固定电池单元，电池单元包括电极组件、电解质以及配置为容纳电极组件和电解质的电池壳体，其中电池单元被固定为使得气袋部位于电池壳体的主体上方；穿孔部，其配置为通过刀具将固定的电池单元穿孔，以形成排气孔；将电池单元保持在真空状态并且将电池单元的内部气体排放到外部的真空部；防泄漏部，其配置为通过使用防泄漏块按压电池单元的通过真空部排放内部气体的气袋部来防止电解质泄漏；以及预密封(Pre‑sealng)部，其配置为密封气袋部。
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