Battery Cell Reinforcing Member for Heat Conduction and Density
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Solution Overview
Problem
Current battery technologies face challenges in improving energy density while ensuring effective heat conduction, which is crucial for the performance and safety of batteries, especially in applications like electric vehicles.
Innovation Solution
A battery design that incorporates a reinforcing member thermally connected to the battery cells, eliminating the need for structural elements like beams, thereby enhancing space utilization and heat conduction within the battery, ensuring efficient thermal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If structural elements like beams are added to ensure heat conduction, then heat conduction is improved, but space utilization rate decreases
Solution Approach 1:
The patent merges the structural support function and heat conduction function into a single integrated component. The reinforcing member that provides structural support to the battery cell also serves as a heat conduction path, eliminating the need for separate beam structures. This integration resolves the contradiction by achieving both structural integrity and thermal management without sacrificing space utilization.
2Strength
If beams are added for structural support, then strength is improved, but energy density decreases
Solution Approach 1:
The reinforcing member combines structural support and thermal management functions, eliminating the need for additional beam structures that would occupy valuable space. By integrating these functions into the existing cell structure, the patent maintains structural strength while maximizing the active material volume, thereby preserving energy density.
3Quantity of substance
If space utilization is improved by removing beams, then energy density increases, but heat conduction deteriorates
Solution Approach 1:
The reinforcing member is designed to perform multiple functions simultaneously: providing structural support to the battery cell, serving as a heat conduction path for thermal management, and maintaining cell integrity. This multi-functionality resolves the contradiction by ensuring adequate heat conduction exists within the space-constrained design that prioritizes energy density.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design improves energy density and maintains effective heat conduction, enhancing the performance and safety of batteries by preventing thermal runaway and extending their service life.
Implementation Method 1
the reinforcing member is thermally conductively connected to the first walls of the at least two battery cells
Data Source
AI summary
A battery and an electrical apparatus are provided. The battery includes a box, at least two battery cells and a reinforcing member. The box has an accommodating cavity, and the at least two battery cells are accommodated in the accommodating cavity. Each battery cell includes an electrode assembly and an electrode terminal which are electrically connected to each other. The battery cell includes a first wall, and the first wall is the wall with the largest area in the battery cell. The reinforcing member is connected to the at least two battery cells, wherein the reinforcing member is thermally conductively connected to the first walls of the at least two battery cells.