Battery Module Electrode Identifier Asymmetry
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Solution Overview
Problem
Conventional battery modules face issues with erroneous combination of rechargeable batteries due to similar shapes of positive and negative terminals, leading to incorrect assembly and potential operational failures.
Innovation Solution
The battery module design incorporates a unique configuration with identifiers and recognizers on the top insulation members, ensuring correct alignment of rechargeable batteries by using complementary shapes and positions for the first and second electrode ends, preventing incorrect assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If rechargeable batteries are designed with similar terminal shapes for positive and negative electrodes, then manufacturing and assembly are simplified, but erroneous combination and incorrect assembly occur
Solution Approach 1:
The patent applies asymmetry by providing different shapes for the first and second top insulation members. Specifically, the first top insulation member has a first protrusion while the second top insulation member has a second protrusion with a different shape. This asymmetric design allows the batteries to be correctly identified and assembled in the proper sequence, preventing erroneous combination while maintaining manufacturing simplicity through standardized components.
2Reliability
If identifiers and recognizers are added to distinguish electrode ends, then assembly correctness is improved, but device complexity increases
Solution Approach 1:
The patent applies local quality by adding identification features only at specific locations where needed - the top insulation members at the electrode ends. The protrusions and corresponding recognizers are placed locally on the insulation members rather than throughout the entire battery structure. This localized approach provides the necessary identification capability while minimizing the overall structural complexity and additional components required.
Data Source
AI summary
A battery module includes a plurality of rechargeable batteries, each rechargeable battery including a first electrode end and a second electrode end protruding outside a case of the rechargeable battery, a first top insulation member at a bottom of the first electrode end, and an identifier on the first top insulation member, a bus bar electrically connecting ends of neighboring rechargeable batteries, a bottom housing including a space, the rechargeable batteries being arranged in the space of the bottom housing, and a top cover attached to the bottom housing, the top cover including a recognizer the fits with the identifier.