Battery Cell Adapter Insulation to Prevent Internal Short Circuits
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Solution Overview
Problem
Existing battery cell structures face safety issues due to internal short circuits caused by lapping of positive and negative adapters, which can lead to fires or explosions, compromising safety performance.
Innovation Solution
Incorporating a first and second adapter portion connected by a first insulating portion to prevent electrical contact, reducing the likelihood of internal short circuits and improving safety by ensuring insulation between the adapter portions, and using flexible materials for the insulating portion to facilitate bending without breaking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the first adapter portion and second adapter portion are connected to form an integrated adapter, then the manufacturing process is simplified and installation is facilitated, but the risk of internal short circuit due to lapping increases
Solution Approach 1:
An insulating portion is introduced as an intermediary element between the first adapter portion and second adapter portion. This insulating portion prevents direct electrical contact between the positive and negative adapters, eliminating the risk of internal short circuits while maintaining the integrated adapter structure for simplified manufacturing and installation.
2Ease of operation
If the adapter is made from flexible material to facilitate bending, then the adapter can be easily shaped, but the insulating portion may break during bending
Solution Approach 1:
The adapter is constructed as a composite structure where the first adapter portion and second adapter portion are made from flexible materials to facilitate bending, while the insulating portion is made from a different material that maintains its integrity during bending. This composite approach allows each component to have optimal properties for its specific function.
3Reliability
If the first insulating portion is continuously arranged between the first adapter portion and second adapter portion, then the probability of short circuit is reduced, but the material consumption increases
Solution Approach 1:
The insulating portion is segmented into multiple discrete insulating blocks arranged at intervals between the first adapter portion and second adapter portion, rather than using a continuous insulating structure. This segmentation reduces material consumption while still providing adequate insulation to prevent short circuits, as the insulating blocks are positioned at critical locations where lapping could occur.
Data Source
AI summary
The present application relates to the technical field of battery, and in particular, to a battery cell, a battery, and an electrical device. The battery cell may include an adapter, the adapter may be formed by connecting a first adapter portion and a second adapter portion by a first insulating portion, and the first insulating portion may be located between the first adapter portion and the second adapter portion to prevent the first adapter portion and the second adapter portion from being electrically connected.