Battery Module Cooling Plate Layout for High-Cell Heat Dissipation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-capacity battery modules face challenges in temperature control due to rapid heat buildup, which can lead to performance deterioration and safety risks such as explosion or ignition, especially in concentrated battery cell configurations.
Innovation Solution
A cooling plate structure is designed with flow paths and guides to efficiently dissipate heat, incorporating a refrigerant flow path between sub-modules, guided by protrusions and avoidance portions to avoid interference with coupling structures, ensuring effective temperature management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of battery cells is increased to achieve high capacity, then the energy storage capability is improved, but the temperature of the battery module increases rapidly leading to overheating risks
Solution Approach 1:
The battery module is divided into multiple sub-modules, each with its own cooling contact area. The cooling plate is segmented to provide cooling contact surfaces for each sub-module, allowing distributed heat dissipation across the entire battery module, thereby managing temperature effectively even as the number of battery cells increases.
Solution Approach 2:
A cooling plate is introduced as an intermediary component between the battery sub-modules and the cooling system. The cooling plate includes cooling contact surfaces that directly contact the connection members of sub-modules, serving as a heat transfer medium to efficiently dissipate heat from the battery cells to the cooling fluid.
2Temperature
If a cooling structure is added to control temperature, then temperature management is improved, but the device complexity increases
Solution Approach 1:
The connection members serve dual functions: electrically connecting battery cells within sub-modules and providing cooling contact surfaces for heat dissipation. The cooling plate also serves multiple purposes by providing both structural support and thermal management functions, thereby reducing the need for separate dedicated cooling components and simplifying the overall device complexity.
3Temperature
If flow paths are positioned to cool sub-modules effectively, then cooling efficiency is improved, but interference with coupling structures may occur
Solution Approach 1:
The cooling plate is designed with localized cooling contact surfaces positioned at specific locations where connection members are present. The flow paths are configured to target areas with highest heat generation, while the design accommodates the coupling structures by providing cooling contact surfaces that interface with the connection members without interfering with their mechanical coupling function.
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 cooling plate effectively manages heat dissipation across multiple sub-modules, enhancing safety and performance by preventing overheating and maintaining stable operation of high-capacity battery modules.
Implementation Method 1
a cooling plate coupled to the lower cover and forming a flow path through which a refrigerant can flow
Implementation Method 2
The cooling plate effectively manages heat dissipation across multiple sub-modules
Data Source
AI summary
An eco-friendly power source, such as a battery module for a transportation vehicle includes a first sub-module and a second sub-module each including a plurality of battery cells; a lower cover supporting the first sub-module and the second sub-module; a connection member coupled to the first sub-module and the second sub-module, respectively; and a cooling plate coupled to the lower cover and forming a flow path through which a refrigerant can flow, wherein at least a portion of the flow path is disposed to oppose the connection member with the lower cover interposed therebetween.