Battery Cell Thermal Conduction Structure for Higher Energy Density
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Solution Overview
Problem
The challenge in battery technology is to enhance energy density while ensuring effective thermal management, as existing solutions often compromise on space utilization and structural strength, leading to issues with heat dissipation and safety.
Innovation Solution
A battery design that incorporates a thermally conductive member connected to the battery cells, eliminating the need for internal structures like beams, thereby improving space utilization and energy density, while ensuring heat conduction through the thermally conductive member to manage temperature effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If beams and other structures are arranged in the boxes of battery cells, then structural strength is improved, but space utilization is reduced, leading to lower energy density
Solution Approach 1:
The thermally conductive member serves multiple functions: it provides structural support (replacing beams), enables thermal management through heat conduction, and maximizes space utilization by eliminating redundant structures. This multi-functional design resolves the contradiction between structural strength and energy density.
Solution Approach 2:
The patent merges the structural support function and thermal management function into a single integrated component (the thermally conductive member). By combining these functions, the design eliminates the need for separate beams while maintaining structural integrity and improving heat dissipation, thereby increasing space utilization and energy density.
2Temperature
If traditional thermal management structures are used, then heat dissipation is improved, but space utilization is reduced, leading to lower energy density
Solution Approach 1:
The thermally conductive member performs dual functions as both a structural component and a thermal management component. By integrating heat dissipation functionality into the structural element itself, the design achieves effective thermal management without requiring additional space-consuming thermal management structures.
Solution Approach 2:
The structural support function and thermal conduction function are merged into a single component. This integration eliminates the need for separate thermal management structures, maximizing space utilization while maintaining effective heat dissipation capabilities.
3Strength
If beams are arranged in battery cell boxes for structural support, then structural integrity is improved, but heat conduction pathways are blocked, reducing thermal management effectiveness
Solution Approach 1:
The thermally conductive member is designed to simultaneously provide structural integrity and facilitate heat conduction. By making the structural component itself thermally conductive, the design eliminates the conflict between structural support and heat dissipation functions.
Solution Approach 2:
The patent combines the structural support function and heat conduction function into a single integrated component. This merging ensures that the structural element does not block heat pathways but rather serves as an efficient heat conduction pathway itself.
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 enhances energy density and thermal management performance, reducing the risk of thermal runaway and extending battery lifespan by efficiently dissipating heat without compromising structural integrity.
Implementation Method 1
the thermally conductive member is thermally conductively connected with the first walls of the at least two battery cells to utilize the heat exchange medium to adjust the temperature 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 thermally conductive member for accommodating a heat exchange medium. The at least two battery cells are accommodated in an accommodating cavity of the box, and an electrode assembly of each battery cell is electrically connected with an electrode terminal. Each battery cell comprises a first wall, the first wall is the wall with the largest area in the battery cell. The thermally conductive member is connected with the at least two battery cells, and the thermally conductive member is arranged opposite to the first walls of the at least two battery cells. The thermally conductive member is thermally conductively connected to the first walls of the at least two battery cells so as to adjust the temperature of the at least two battery cells by using the heat exchange medium.