圆柱电池壳体的超薄顶盖及其圆柱电池壳体
CN115692963BActive Publication Date: 2026-07-17SHANDONG GOLDENCELL ELECTRONICS TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG GOLDENCELL ELECTRONICS TECH CO LTD
- Filing Date
- 2022-11-30
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
The existing cylindrical battery sealing structure occupies a large space, resulting in low space utilization.
Method used
Design an ultra-thin top cover, including a top cover, a disconnect switch, a pressure relief port, a pressure relief valve, a sealing ring, and an insulating sheet. By optimizing the top cover structure and sealing ring design, the sealing thickness is reduced and the compression area of the sealing ring is increased. A pressure relief port and a disconnect switch are provided to improve the encapsulation space.
Benefits of technology
This increased the packaging space, improved the effective packaging height of the battery, enhanced the sealing effect, and reduced the risk of electrolyte leakage.
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Smart Images
Figure CN115692963B_ABST
Abstract
本发明提供一种圆柱电池壳体的超薄顶盖及其圆柱电池壳体，通过降低顶盖结构实现减少封口占用的体积。为实现上述目的，本发明采用的技术方案是：一种圆柱电池壳体的超薄顶盖，其特征是，包括顶盖、断开开关、泄压口、泄压阀、密封圈和绝缘片；所述顶盖一周边缘设有阶梯凹槽，阶梯凹槽及顶盖一周边缘设密封圈包裹，且向顶盖上方延伸出折边，顶盖的中间向内冲压出圆形的断开开关，顶盖在断开开关一周环切制得到泄压口，断开开关的内侧设有点焊相连的泄气阀，泄气阀一周与顶盖内侧之间设置绝缘片隔离；根据所述的圆柱电池壳体的超薄顶盖，该圆柱电池为26650型号圆柱电池，密封圈为PBT材料。
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