Battery Module Cooling Pad With Resin-Filled Concave Structure
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Solution Overview
Problem
Conventional battery packs face challenges in efficiently cooling irregularly shaped battery cells due to difficulties with handling and curing times of liquid heat dissipation resins, and the reduced cooling efficiency of solid heat dissipation materials in such configurations.
Innovation Solution
A battery module design incorporating a heat dissipation pad with concave portions for injecting liquid resin, which deforms to form a space between the cells and pad, maximizing contact area and cooling efficiency, and includes a curable liquid resin that hardens quickly, facilitating handling and reducing manufacturing time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If liquid heat dissipation resin is applied to cool irregular shapes of battery cells, then cooling efficiency is improved, but handling difficulty and curing time increase
Solution Approach 1:
The heat dissipation pad is pre-formed with concave portions that correspond to the irregular shapes of battery cells before assembly. This preliminary shaping allows the pad to automatically conform to cell geometries when placed, eliminating the need for complex liquid resin application and curing processes while maintaining effective thermal contact with irregular surfaces
2Ease of operation
If solid heat dissipation material is used to cool simple shaped portions, then handling is simplified, but cooling efficiency decreases due to difficulty in filling gaps of irregularly shaped cooling portions
Solution Approach 1:
The heat dissipation pad is divided into multiple regions with different characteristics: a base portion for structural support and ease of handling, and multiple concave portions that segment the pad to conform to individual battery cell shapes. This segmentation allows the solid pad to adapt to irregular geometries while maintaining handling simplicity
Solution Approach 2:
The heat dissipation pad functions as a flexible solid structure that can deform to match the contours of irregularly shaped battery cells. The pad's flexibility allows it to conform to simple and complex geometries alike, providing effective thermal contact without requiring liquid materials or complex assembly procedures
3Area of stationary object
If liquid resin is injected into concave portion of heat dissipation pad, then contact area with battery cells is maximized, but manufacturing complexity increases
Solution Approach 1:
The concave portions are pre-formed into the heat dissipation pad during pad manufacturing, before assembly with battery cells. This preliminary formation of the concave geometry eliminates the need for complex injection molding or in-situ resin injection processes, simplifying manufacturing while ensuring maximum contact area when the pad is assembled with the cells
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 enables efficient cooling of irregularly shaped battery cells, shortens the curing time of the heat dissipation material, and simplifies the manufacturing process, improving both cooling efficiency and handling during the assembly of battery modules.
Implementation Method 1
a form in which a liquid resin is injected into the concave portion
Implementation Method 2
a heat dissipation pad accommodated in the module housing, located on at least one side of the plurality of battery cells
Data Source
AI summary
A battery module according to an embodiment of the present disclosure includes a plurality of battery cells; a module housing accommodating the plurality of battery cells; and a heat dissipation pad accommodated in the module housing and located along at least one side of the plurality of battery cells. The heat dissipation pad includes at least one concave portion, and the concave portion has a form a such that an injected liquid resin is received within the concave portion.