Battery Module Cooling Member with Integrated Heat Dissipation Fin
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Solution Overview
Problem
Existing middle or large-sized battery modules face challenges in achieving both compact size and high cooling efficiency, as the low thermal conductivity of polymer materials used in pouch-shaped batteries leads to heat accumulation, increasing the risk of deterioration, fire, or explosion, and traditional cooling systems complicate design and increase size.
Innovation Solution
A battery module structure where heat dissipation fins and coolant conduits are integrated between battery cells, with the coolant conduits mounted along the outer edges of electrode assembly receiving parts to enhance cooling efficiency and mechanical strength, eliminating the need for additional members and allowing for stable stacking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If battery cells are stacked at predetermined intervals without additional members, then heat dissipation is improved, but device complexity and size increase
Solution Approach 1:
The cooling member integrates multiple functions: it serves as a structural support between battery cells, provides thermal conduction pathways through heat dissipation fins, and incorporates coolant conduits for active cooling. This merging of structural and thermal management functions eliminates the need for separate cooling components while maintaining effective heat dissipation.
Solution Approach 2:
The cooling member is designed as a multi-functional component that simultaneously provides mechanical support, thermal conduction, and fluid flow channels. The heat dissipation fins extend from the coolant conduit to increase surface area for heat exchange, allowing a single component to address both structural integrity and thermal management requirements.
2Temperature
If cooling members are added between battery cells, then cooling efficiency is improved, but device complexity increases
Solution Approach 1:
The cooling member integrates multiple functions: it serves as a structural support between battery cells, provides thermal conduction pathways through heat dissipation fins, and incorporates coolant conduits for active cooling. This merging of structural and thermal management functions eliminates the need for separate cooling components while maintaining effective heat dissipation.
3Volume of stationary object
If battery cells are stacked with high integration, then device size is reduced, but heat dissipation becomes difficult
Solution Approach 1:
The heat dissipation fins extend perpendicular to the battery cell surfaces, utilizing the vertical dimension to increase heat exchange surface area without expanding the horizontal footprint. This allows effective heat dissipation while maintaining compact battery cell spacing and high integration density.
Solution Approach 2:
The cooling member acts as an intermediary component between adjacent battery cells, providing thermal conduction pathways through its heat dissipation fins that contact the battery cell surfaces. The coolant flowing through the conduit removes heat from this intermediate position, preventing heat accumulation between tightly packed cells.
4Weight of moving object
If pouch-shaped batteries with polymer laminate sheets are used, then weight is reduced, but thermal conductivity decreases
Solution Approach 1:
The cooling member acts as an intermediary component between adjacent battery cells, providing thermal conduction pathways through its heat dissipation fins that contact the battery cell surfaces. The coolant flowing through the conduit removes heat from this intermediate position, compensating for the low thermal conductivity of the polymer laminate sheets.
Solution Approach 2:
The cooling member likely uses metallic materials with high thermal conductivity for the coolant conduit and heat dissipation fins, creating a composite thermal management system that compensates for the low thermal conductivity of the polymer battery encapsulation materials while maintaining overall system lightweight characteristics.
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 configuration achieves high cooling efficiency and structural stability while maintaining a compact size, reducing the risk of heat-related issues and enhancing safety in high-power, large-capacity battery applications.
Implementation Method 1
each of the cooling members includes a heat dissipation fin disposed between adjacent electrode assembly receiving parts in a tight contact state and a coolant conduit configured to have a hollow structure in which a coolant flows and mounted to the heat dissipation fin
Implementation Method 2
a coolant conduit configured to have a hollow structure in which a coolant flows and mounted to the heat dissipation fin along outer edges of each of the electrode assembly receiving parts
Data Source
AI summary
Disclosed herein is a battery module configured to have a structure in which a plurality of battery cells, each of which includes an electrode assembly of a cathode/separator/anode structure mounted in an electrode assembly receiving part, is mounted in a module case in a state in which the battery cells are arranged in a lateral direction such that the electrode assembly receiving parts of the respective battery cells are adjacent to one another, wherein a plurality of cooling members is disposed between the battery cells, and each of the cooling members includes a heat dissipation fin disposed between adjacent electrode assembly receiving parts in a tight contact state and a coolant conduit configured to have a hollow structure in which a coolant flows and mounted to the heat dissipation fin along outer edges of each of the electrode assembly receiving parts.