Top cover assembly, battery cell, battery module and battery
By providing a reinforcement part in the lithium battery ceiling cover assembly, the mechanical strength of the top cover body is increased, and the problems of roof displacement and cell space reduction caused by gas inside the battery cell are solved, thereby achieving higher battery performance and reliability.
CN222690787UActive Publication Date: 2025-03-28JIANGSU PYLON BATTERY CO LTD
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Patent Information
- Application Number
- CN202420642514.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-03-29
AI Technical Summary
Technical Problem
During the use of lithium batteries, the gas generated inside the battery cell causes the top cover to shift, increase the height of the battery cell, and thus reduce the space for the battery cell group.
Method used
A top cover assembly is designed, including a pole column, a top cover sheet and a reinforcement portion. By providing a first reinforcement portion, a second reinforcement portion and a third reinforcement portion on the top cover body, the mechanical strength of the top cover body is increased to resist the load of gas inside the battery cell shell.
Benefits of technology
Effectively reduce deformation of the top cover assembly, avoid the problem of smaller cell group space caused by gas load, and improve the overall performance and reliability of the battery.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN222690787U_ABST
Abstract
The utility model provides a top cover assembly, a battery cell, a battery module and a battery. According to the top cover assembly provided by the invention, the first reinforcing part, the second reinforcing part and the third reinforcing part are arranged on the top cover main body provided with the pole, the first reinforcing part is arranged on the outer side of the second reinforcing part, and the first reinforcing part and the second reinforcing part are connected through the third reinforcing part, so that the mechanical strength of the top cover main body can be effectively improved; therefore, after the top cover assembly is mounted on the shell of the battery cell, the top cover sheet of the top cover assembly can resist the load applied to the top cover assembly by gas generated in the shell of the battery cell, so that the deformation of the top cover assembly is reduced. Therefore, the situation that the height of the top cover assembly is increased and the size of the top cover assembly is increased due to the fact that gas in the battery cells applies loads to the top cover assembly is avoided, and then the situation that the battery cell grouping space becomes small due to the gas loads can be relieved.
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