Battery Cooling Plate With Partitioned Heat Conduction Cavities
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Solution Overview
Problem
Power storage devices, such as battery packs in hybrid vehicles, face degradation due to high temperatures, necessitating effective cooling to enhance battery durability and performance.
Innovation Solution
A cooling structure comprising a cooling plate, a partition member with divided areas, and a heat conduction material that contacts each storage battery and the cooling plate, ensuring efficient heat dissipation and maintaining battery temperature stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling plate is provided on the cooling surface side of the battery pack, then the cooling effect is improved, but the device complexity increases due to additional components and assembly requirements
Solution Approach 1:
The partition member and heat conduction material are merged into a single integrated component. The partition member includes built-in cavities that accommodate the heat conduction material, eliminating the need for separate installation steps and reducing assembly complexity while maintaining effective heat conduction from each battery to the cooling plate
Solution Approach 2:
The partition member serves multiple functions simultaneously: it provides electrical insulation between adjacent batteries, structurally supports the battery pack, and facilitates heat conduction through integrated heat conduction material. This multi-functionality reduces the number of separate components needed in the cooling structure
2Reliability
If heat conduction material is provided between each battery and the cooling plate, then heat conduction efficiency is improved, but the device complexity increases due to multiple separate materials required
Solution Approach 1:
Multiple heat conduction materials are merged into a single partition member structure. The partition member includes multiple cavities, each accommodating heat conduction material for the corresponding battery, thereby providing comprehensive heat conduction coverage while reducing the number of separate components from multiple independent heat conduction materials to a single integrated partition member
3Reliability
If separators with insulation properties are interposed between batteries, then electrical insulation is improved, but the productivity decreases due to additional assembly steps
Solution Approach 1:
The separator function and heat conduction function are merged into a single partition member. The partition member provides electrical insulation between batteries through its insulating structure while simultaneously providing thermal conduction pathways through integrated heat conduction material, thereby eliminating the need for separate separator installation and heat conduction material placement steps
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 effectively suppresses temperature variations among batteries, reduces the risk of intensive degradation, and allows for a compact, lightweight, and economical cooling solution while maintaining battery performance.
Implementation Method 1
The heat conduction material is accommodated in each of the divided areas and is in contact with a corresponding storage battery and the cooling plate in an integral manner
Data Source
AI summary
A cooling structure of a power storage device includes a cooling plate, a partition member, and a heat conduction material. The cooling plate is to cool a storage battery bank including storage batteries which are stacked. The partition member is disposed between the storage battery bank and the cooling plate and includes divided areas. At least one of the storage batteries is provided in each of the divided areas. The heat conduction material is accommodated in at least one of the divided areas and is in contact with the at least one of the storage batteries and the cooling plate.