Battery Insulating Member Cross Structure for Short Circuit Prevention
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Solution Overview
Problem
The reliability of batteries is insufficient due to issues with insulation and mechanical strength, leading to potential short circuits and damage from external forces.
Innovation Solution
A battery design incorporating insulating members with first and second insulating portions extending along perpendicular directions to stabilize and insulate battery cells, enhancing rigidity and mechanical strength, and featuring connecting portions, through holes, and blocking portions to prevent short circuits and improve reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If insulating members are added to separate battery cells, then the risk of short circuit is reduced, but the device complexity increases
Solution Approach 1:
The patent combines multiple functions into a single insulating member: electrical insulation between battery cells, mechanical support for the battery pack, and structural framework integration. This merging approach reduces the number of separate components needed while maintaining short circuit protection and structural integrity.
Solution Approach 2:
The insulating member is designed to perform multiple functions simultaneously: it provides electrical insulation to prevent short circuits, offers mechanical support to maintain battery cell positioning, and serves as a structural framework element. This multi-functionality reduces overall device complexity while improving reliability.
2Strength
If insulating members with cross arrangement are used to fix battery cells, then the mechanical strength is improved, but the manufacturing cost increases
Solution Approach 1:
The insulating member is segmented into first and second insulating portions arranged perpendicular to each other, forming a cross structure. This segmentation allows each portion to independently support battery cells in different directions, providing enhanced mechanical strength while enabling modular manufacturing and assembly.
Solution Approach 2:
The insulating member is made from composite materials that provide both electrical insulation properties and high mechanical strength. This allows the single component to fulfill both insulation and structural support functions without requiring additional reinforcing elements, thereby controlling manufacturing costs.
3Reliability
If the insulating member occupies space on the battery cell surface, then the insulation performance is improved, but the volume of the battery increases
Solution Approach 1:
The insulating member is designed as a thin-walled structure that provides effective electrical insulation between battery cells while occupying minimal space. The thin film approach ensures adequate insulation performance without significantly increasing the overall battery pack volume.
Solution Approach 2:
The insulating member extends in the vertical dimension between battery cells rather than expanding the horizontal footprint. By utilizing the z-axis space between cells, the insulation function is achieved without increasing the battery pack's length, width, or overall volume.
Data Source
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AI summary
Provided in the embodiments of the present application are a battery and an electric device. The reliability of the battery can be improved. The battery includes a plurality of battery cells, the plurality of battery cells are arranged in a matrix along a first direction and a second direction, the first direction being perpendicular to the second direction; and an insulating member, including a first insulating portion extending along the first direction and a second insulating portion extending along the second direction, the first insulating portion is fixedly connected to the plurality of battery cells arranged along the first direction, and the second insulating portion is fixedly connected to the plurality of battery cells arranged along the second direction.