Battery Module Terminal Cover for Reusable Short-Circuit Insulation
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Solution Overview
Problem
Existing battery modules face challenges in preventing short circuits at terminals, with separate insulating structures being prone to loss and difficult to adapt to various types of terminals, and are not reusable after the battery's lifespan.
Innovation Solution
A battery module design incorporating an insulating member with a terminal cover that surrounds the terminal, is elastic, and can be reused, featuring a shape corresponding to the terminal and integrating with the body part to prevent short circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate insulating structure is used to prevent terminal short circuit, then the terminal short circuit prevention function is achieved, but the structure is prone to loss and difficult to adapt to various types of terminals
Solution Approach 1:
The insulating structure is merged with the sealing plate to form an integrated component. The sealing plate includes both the sealing function and the insulating function, eliminating the need for separate insulating structures. This integration ensures the insulating component cannot be lost and provides adaptability to various terminal types through the unified design.
Solution Approach 2:
The sealing plate is designed to perform multiple functions simultaneously: sealing the battery module, preventing terminal short circuits through integrated insulating structures, and providing structural support. The insulating plate within the sealing plate can be configured in different ways to adapt to various terminal types, enhancing universality.
2Reliability
If a separate insulating structure is used to prevent terminal short circuit, then the terminal short circuit prevention function is achieved, but the structure is likely to be lost when separated
Solution Approach 1:
The insulating structure is merged with the sealing plate to form an integrated component. The sealing plate includes both the sealing function and the insulating function, eliminating the need for separate insulating structures. This integration ensures the insulating component cannot be lost and provides adaptability to various terminal types through the unified design.
3Reliability
If a separate insulating structure is used to prevent terminal short circuit, then the terminal short circuit prevention function is achieved, but it is difficult to be applied to various types of terminals
Solution Approach 1:
The sealing plate is designed to perform multiple functions simultaneously: sealing the battery module, preventing terminal short circuits through integrated insulating structures, and providing structural support. The insulating plate within the sealing plate can be configured in different ways to adapt to various terminal types, enhancing universality.
4Reliability
If separate insulating components are used, then the terminal short circuit prevention function is achieved, but the assembly process becomes more complex and components may be lost
Solution Approach 1:
The insulating structure is merged with the sealing plate to form an integrated component. The sealing plate includes both the sealing function and the insulating function, eliminating the need for separate insulating structures. This integration ensures the insulating component cannot be lost and provides adaptability to various terminal types through the unified design.
Data Source
AI summary
A battery module includes a cell stack, in which a plurality of cells are stacked, a body part configured to surround the cell stack, an endplate configured to block an opening of the body part and disposed on front and rear surfaces of the cell stack, and an insulating member disposed between the cell stack and the body part, wherein the insulating member includes a terminal cover having a shape extending to the outside of the body part.