Secondary Battery Lead Terminal Insulation for Flexible Arrays
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Solution Overview
Problem
There is a growing demand for secondary batteries that can be configured in various shapes, including curved and polygonal forms, to fit efficiently within compact electronic devices, while maintaining effective electrical connectivity and structural integrity.
Innovation Solution
The design incorporates lead terminals with insulation members and position alignment portions, allowing for the electrical connection of secondary batteries through overlapping and welding of exposed terminal ends, enabling flexible shaping without compromising electrical output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If secondary batteries are connected to form arrays in various shapes including curved forms, then adaptability to different device spaces is improved, but structural integrity and electrical connection reliability may deteriorate
Solution Approach 1:
The battery array is segmented into multiple individual battery units, each with its own insulation members and lead terminals. This segmentation allows each unit to be independently positioned and connected, enabling flexible arrangement in various device spaces while maintaining reliable electrical connections through standardized terminal interfaces.
Solution Approach 2:
Insulation members are introduced as intermediary components that extend along the lead terminals and expose specific end portions. These insulation members with openings serve as mediators that facilitate reliable electrical connections between battery units while providing mechanical guidance and electrical insulation, ensuring connection reliability despite spatial flexibility.
2Ease of operation
If lead terminals are exposed for electrical connection between batteries, then ease of connection is improved, but risk of short circuit between terminals increases
Solution Approach 1:
The insulation members provide localized insulation coverage along the lead terminals, with specific openings positioned at terminal ends. This local quality approach maintains electrical insulation where needed while exposing terminals where connection is required, enabling easy connection while preventing short circuits through targeted insulation placement.
Solution Approach 2:
The insulation members with openings act as intermediary structures that manage the exposure of lead terminals. They facilitate easy connection by exposing terminal ends while simultaneously preventing short circuits by providing insulation coverage along the terminal lengths, mediating between the need for connection access and the need for electrical safety.
3Reliability
If insulation members cover the lead terminals, then protection against short circuit is improved, but accessibility of terminals for connection decreases
Solution Approach 1:
The insulation members are designed with local quality by providing coverage along the lead terminals while incorporating openings at specific locations. This allows the insulation to protect against short circuits where it covers the terminals, while the openings provide accessible points for electrical connection, simultaneously achieving both protection and accessibility.
Data Source
AI summary
A secondary battery and a secondary battery array are disclosed. In one aspect, the secondary battery includes an electrode assembly and a battery case accommodating the electrode assembly. The battery also includes a plurality of lead terminals comprising a first pair of lead terminals having opposite polarities and outwardly extending from the electrode assembly to protrude from a first side of the battery case and a second pair of lead terminals having opposite polarities and outwardly extending from the electrode assembly to protrude from a second side of the battery case opposing the first side. The battery further includes a plurality of insulation members respectively extending along the first and second pairs of lead terminals to at least partially cover the lead terminals.