Rechargeable Battery Insulation Member Terminal Support
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Solution Overview
Problem
The manufacturing process of rechargeable batteries is labor-intensive due to the complex coupling of multiple components, and they are prone to damage from external impacts and internal gas pressure fluctuations, which can affect their performance and longevity.
Innovation Solution
Incorporating an insulation member with a current collecting member coupling portion that supports the terminal coupling portion, includes a groove for secure engagement, and features gas exhaust paths to manage internal pressure, thereby simplifying assembly, protecting components from impacts, and maintaining consistent internal pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple components are coupled together to form the battery structure, then the battery can perform its function, but the manufacturing process becomes labor-intensive and complex
Solution Approach 1:
The patent combines the insulation member and support structure into a single integrated component. The insulation member includes both the insulating function and the support function for the current collecting member, eliminating the need for separate support structures and reducing assembly complexity.
Solution Approach 2:
The insulation member serves multiple functions simultaneously: it provides electrical insulation, structural support for the current collecting member, and positioning features through grooves and protrusions. This multi-functionality reduces the total number of components needed in the battery assembly.
2Productivity
If the battery structure is simplified to improve manufacturing, then productivity increases, but the battery becomes more vulnerable to damage from external impacts and internal pressure fluctuations
Solution Approach 1:
The insulation member has varying thickness in different regions, with thicker portions at locations subject to external impacts. This localized reinforcement provides enhanced protection where needed while maintaining overall structural integrity and reducing unnecessary material usage.
Solution Approach 2:
The insulation member is positioned to provide protective cushioning for the current collecting member before external impacts can reach it. The insulating material acts as a buffer that absorbs and distributes impact forces, protecting the electrical components from damage.
3Reliability
If the insulation member provides comprehensive support and protection, then reliability improves, but the device complexity increases
Solution Approach 1:
The support functions that would traditionally require separate components are integrated directly into the insulation member through strategically placed grooves, protrusions, and coupling portions. This merging of functions into a single component reduces overall device complexity while maintaining comprehensive protection.
Data Source
AI summary
A rechargeable battery includes a case, an electrode assembly in the case, at least one terminal portion disposed at least partially inside the case, at least one current collecting member electrically connecting the electrode assembly and the terminal portion, the current collecting member including a terminal coupling portion, and at least one insulation member in the case. The insulation member includes a current collecting member coupling portion into which the terminal coupling portion extends. The current collecting member coupling portion supports at least a portion of the terminal coupling portion.