Battery Housing Sealing Interface for Higher Cell Energy Density
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Solution Overview
Problem
Existing battery technologies face challenges in improving energy density, which is crucial for enhancing the performance of electric vehicles.
Innovation Solution
The design of a battery system with a first and second housing that form a sealing interface intersecting with the surface, reducing the projected area of the sealing member to optimize space utilization, and incorporating specific sealing and fastening mechanisms to enhance volumetric energy density and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the sealing interface is configured parallel to the first surface, then the sealing structure is simple and easy to manufacture, but the space utilization rate is low and volumetric energy density is reduced
Solution Approach 1:
The sealing interface is changed from a parallel configuration to an intersecting configuration relative to the first surface. This dimensional reorientation allows the sealing member to be positioned more efficiently within the battery housing, reducing the projected area occupied by the sealing structure and improving overall space utilization without complicating the manufacturing process
2Volume of moving object
If the sealing interface intersects with the first surface, then the space utilization rate increases and volumetric energy density is improved, but the sealing structure becomes more complex
Solution Approach 1:
The sealing interface is designed with an asymmetric configuration where it intersects the first surface at a specific angle rather than being parallel. This asymmetric arrangement optimizes the use of available space within the battery housing, allowing the sealing member to occupy minimal projected area while maintaining effective sealing performance
3Quantity of substance
If the projected area of the sealing member is reduced, then more battery cells can be accommodated, but the sealing performance may be compromised
Solution Approach 1:
By reorienting the sealing interface to intersect with the first surface, the sealing member's projected area is reduced in the planar view, allowing more battery cells to be accommodated. The intersecting configuration maintains adequate sealing contact area through three-dimensional positioning, ensuring sealing performance is not compromised despite the reduced projected footprint
Data Source
AI summary
A battery and an electric apparatus. The battery includes a battery cell, a first housing, and a second housing. The first housing includes a first sealing surface. The second housing includes a first surface and a second sealing surface, where the first surface is configured to support the battery cell, the first housing and the second housing jointly define a closed space for accommodating the battery cell, and the first sealing surface and the second sealing surface cooperatively form a first sealing interface for sealing the closed space. The first sealing interface intersects with the first surface.