Battery Module Partition Structure for Cooling and Rigidity
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Solution Overview
Problem
Lithium secondary battery modules face issues with heat dissipation and structural stability, leading to reduced lifespan and potential explosions due to inadequate cooling performance and lack of rigidity, especially when subjected to mechanical stress.
Innovation Solution
A battery module design featuring a module housing with integrated cooling members, a partition member for enhanced structural stability, and heat transfer members to dissipate heat effectively, along with a configuration that includes a first and second plate with protrusions for improved protection and cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling flow path is formed in the module housing to dissipate heat, then cooling performance is improved, but the structural rigidity and stability deteriorate
Solution Approach 1:
The module housing is divided into multiple plates (first plate, second plate, third plate) that are coupled together to form cooling flow paths. This segmentation allows the housing to maintain structural integrity while creating channels for coolant flow, resolving the contradiction between cooling performance and structural rigidity.
Solution Approach 2:
The plates serving as structural components of the module housing simultaneously function as cooling structures by forming cooling flow paths between them. This multi-functionality eliminates the need for separate cooling components, maintaining structural rigidity while achieving effective heat dissipation.
2Ease of manufacture
If the module housing is designed with simple structure for ease of manufacture, then manufacturing ease is improved, but structural stability and rigidity deteriorate
Solution Approach 1:
The housing is segmented into multiple plates that can be manufactured separately using standard fabrication processes, then assembled together. This approach maintains manufacturing simplicity while the multi-plate configuration provides enhanced structural stability through distributed load-bearing.
Solution Approach 2:
Multiple functional requirements (structural support, cooling flow paths, battery cell positioning) are merged into the plate structures. The plates serve simultaneously as structural elements and cooling channels, eliminating the need for complex additional components while maintaining structural integrity.
3Temperature
If cooling members are added to improve cooling performance, then cooling performance is improved, but device complexity increases
Solution Approach 1:
The cooling flow paths are formed by the spacing and arrangement of the housing plates themselves, rather than by adding separate cooling members. This merging of structural and cooling functions into the housing design achieves effective cooling while minimizing device complexity.
Solution Approach 2:
The housing plates serve dual purposes: providing structural support and forming cooling flow paths. This eliminates the need for dedicated cooling members, reducing device complexity while maintaining effective heat dissipation capability.
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
The design enhances structural stability and cooling performance, reducing the risk of explosions and extending the battery module's lifespan by effectively dissipating heat and withstanding mechanical stress.
Implementation Method 1
heat transfer members to dissipate heat effectively
Implementation Method 2
cooling members disposed on a lower surface of the first plate to cool the module housing
Data Source
AI summary
A battery module includes a module housing including a first plate in which one side is open, a second plate coupled with the first plate to form an internal space, and a partition member disposed across the internal space to couple the first plate with the second plate; and a battery cell stack disposed in the internal space, in which a plurality of battery cells are stacked.