Battery Module Plate Cooling With Insulated Heat Transfer Grooves
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Solution Overview
Problem
Existing battery modules face inefficiencies in heat dissipation, leading to reduced lifespan and efficiency, and potential safety hazards due to rapid temperature increases during charging.
Innovation Solution
A battery module design incorporating a first and second plate with heat transfer materials, where the second plate has accommodation grooves for sealing portions and the first plate has insertion grooves, both formed from aluminum with a heat transfer material providing dielectric strength, enhancing heat dissipation through the plates and the use of a cooling device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cooling systems are added to battery modules, then heat dissipation is improved, but device complexity increases
Solution Approach 1:
The cooling device is merged with the battery module structure by integrating the first and second plates as both structural supports and heat dissipation components. The plates directly contact the battery cells and serve dual functions as mechanical supports and thermal management surfaces, eliminating the need for separate cooling structures.
Solution Approach 2:
The first and second plates perform multiple functions simultaneously: they provide mechanical support for the battery cells, serve as heat dissipation surfaces, and incorporate grooves for securing sealing portions. This multi-functionality reduces the number of separate components needed in the cooling system.
2Temperature
If heat transfer material is added in accommodation grooves, then heat dissipation is improved, but manufacturing precision requirements increase
Solution Approach 1:
The accommodation grooves are designed with specific local dimensions (wider and deeper than insertion grooves) to accommodate sealing portions that are folded at least once. This local differentiation allows the heat transfer material to be effectively positioned in areas where thermal contact is most needed, while the varied groove dimensions provide tolerance for manufacturing variations.
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
Effectively dissipates heat generated in battery cells, improving module efficiency and safety by securely fixing the battery cells and maintaining electrical insulation, thus preventing overheating and potential hazards.
Implementation Method 1
a heat transfer material may be disposed in the accommodation grooves
Data Source
AI summary
A battery module includes: a plurality of battery cells stacked in a horizontal direction; a first plate supporting lower sides of the plurality of the battery cells and dissipating heat generated in the battery cells; and a second plate in contact with upper sides of the battery cells and dissipating heat generated in the battery cells, wherein the second plate comprises accommodation grooves to receive corresponding sealing portions formed in the upper sides of the battery cells, wherein a heat transfer material having a dielectric strength of from 10 kV/mm to 30 kV/mm is disposed in the accommodation grooves.