Battery Module Cooling Component Design for Heat Dissipation
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Solution Overview
Problem
Existing battery modules suffer from inefficient heat dissipation, leading to adverse effects on the normal operation of secondary batteries due to the deterioration of heat dissipation structures, which fail to quickly diffuse heat produced during operation.
Innovation Solution
A battery module design incorporating a cooling component positioned on the sides and end faces of secondary batteries, with a clamping mechanism using end plates to apply force and enhance heat transfer, thereby shortening cooling paths and improving heat dissipation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a traditional heat dissipating structure is used in the battery module, then the structure is simple and easy to manufacture, but the heat dissipating efficiency deteriorates and heat cannot be quickly diffused
Solution Approach 1:
The cooling component is divided into multiple cooling plates, each corresponding to different heat generation areas (electrode assembly end face and tab). This segmentation allows targeted cooling of different heat sources, improving overall heat dissipating efficiency while maintaining manageable structural complexity through modular design
Solution Approach 2:
The cooling structure transitions from traditional single-point or single-area cooling to multi-dimensional cooling by placing cooling plates at different locations (end face and tab areas) and using end plates to apply clamping force in the first direction, creating a three-dimensional cooling network that efficiently diffuses heat from multiple sources
2Loss of time
If the cooling component is positioned close to the heat generating sources (end face and tab), then the cooling path is shortened and heat dissipation efficiency is improved, but the structural complexity increases
Solution Approach 1:
The cooling component is integrated with the end plates, combining the cooling function with the structural clamping function. The cooling plates are positioned between the electrode assembly and the end plates, merging heat dissipation with the mechanical assembly structure, thereby shortening cooling paths without significantly increasing overall structural complexity
Solution Approach 2:
The end plates serve dual functions: providing mechanical clamping force to secure the battery group and serving as mounting structures for the cooling component. This multi-functionality reduces the need for separate cooling mounting structures, shortening cooling paths while maintaining reasonable structural complexity
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 solution effectively ensures quick cooling of the electrode assembly, ensuring a smooth and safe operating process by enhancing heat dissipation efficiency and maintaining optimal operating conditions for secondary batteries.
Implementation Method 1
The cooling component and the end face are respectively disposed on two sides of the case in the second direction... the cooling paths between the cooling component to the end face and the tab are short and thus the cooling and heat dissipating efficiency is high
Implementation Method 2
the first end plate and the second end plate are respectively connected with the cooling component to apply a clamping force in the first direction to the battery group
Data Source
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AI summary
The embodiments of the present disclosure provide a battery module and a battery pack. A battery module includes: a cooling component; and a battery group, comprising two or more secondary batteries disposed side by side in a first direction, each secondary battery including a case having an accommodating hole, an electrode assembly disposed in the accommodating hole, and a cap assembly connected with the case in a sealed manner to seal the electrode assembly in the case, the electrode assembly including two end faces disposed opposite to each other in a second direction and an electrode tab extending from each end face, and the first direction intersecting the second direction; wherein the secondary batteries each includes two sides opposite to each other in the second direction, the cooling component is disposed on at least one of the two sides, the cooling component and the end face are respectively disposed on two sides of the case in the second direction, and the cooling component is connected and fixed to each of the secondary batteries. The battery module of this embodiment has good cooling performance, and the heat produced in the operating process can be quickly diffused to ensure a good operating condition. (Fig. 1)