Battery Module Thermal Conductive Sheet Heat Transfer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery modules face challenges in efficiently cooling battery cells due to inefficiencies in heat conduction between cooling fins and cooling plates, leading to potential overheating, deterioration, and safety risks.
Innovation Solution
A battery module design incorporating a thermal conductive sheet as a connection member between cooling fins and a cooling plate, with bent fin and plate portions that correspond to each other, ensuring effective heat transfer and uniform cooling across the battery cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cooling fins are inserted between battery cells to dissipate heat, then heat dissipation capability is improved, but heat conduction efficiency between cooling fins and cooling plate decreases due to contact issues
Solution Approach 1:
A connection member is introduced as an intermediary component between the cooling fin and cooling plate. This connection member includes a fin insertion portion that fits into the cooling fin and a plate insertion portion that connects to the cooling plate, ensuring reliable thermal conduction while accommodating shape variations and contact issues between the cooling fin and cooling plate
Solution Approach 2:
The connection member is designed with a thin, flexible structure that can adapt to the bent shapes of cooling fins and maintain intimate contact with both the cooling fin and cooling plate surfaces, ensuring efficient heat transfer even when perfect rigid contact is difficult to achieve
2Quantity of substance
If multiple battery cells are densely packed in a narrow space to achieve high capacity, then energy density is improved, but heat dissipation becomes more difficult
Solution Approach 1:
The battery module is divided into multiple cartridges, each containing a subset of battery cells with its own cooling fins and connection members. This segmentation allows for distributed heat dissipation throughout the battery pack, enabling effective cooling even when multiple cells are densely packed together
Solution Approach 2:
Cooling fins are inserted between battery cells in the horizontal dimension, creating additional heat dissipation pathways without increasing the vertical space occupied by battery cells. This allows dense packing while maintaining effective heat transfer surfaces
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 use of a thermal conductive sheet improves heat conduction efficiency between cooling fins and the cooling plate, enhancing the cooling of battery cells and maintaining uniform temperatures, thereby preventing overheating and safety issues.
Implementation Method 1
a connection member placed between the cooling fin and the cooling plate and transferring heat from the cooling fin to the cooling plate
Data Source
AI summary
The present disclosure relates to a battery module, and a battery pack and a vehicle including the same. A battery module according to an embodiment of the present disclosure includes a cartridge including an accommodation space therein; a plurality of battery cells placed in the accommodation space; and a cooling unit configured to cool the battery cells, wherein the cooling unit includes: a cooling fin making surface contact with sides of the battery cells; a cooling plate placed below the cooling fin; and a connection member placed between the cooling fin and the cooling plate and transferring heat from the cooling fin to the cooling plate.