Battery Module Busbar Heat Dissipation Through Module Frame Contact
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge is to manage heat generation in battery modules without increasing the cross-sectional area of the busbar, which would otherwise lead to increased costs and weight.
Innovation Solution
The battery module incorporates a heat transfer member made of an electrically insulating and thermally conductive material, which is connected to the busbar and makes contact with the module frame, effectively dissipating heat without requiring a separate cooling system for the busbar.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the cross-sectional area of the busbar is increased to reduce heat generation, then heat management is improved, but cost and weight increase
Solution Approach 1:
A heat transfer member is introduced as an intermediary component between the busbar and the cooling plate. This mediator efficiently conducts heat away from the busbar to the cooling system without requiring the busbar itself to be enlarged, thus managing heat generation while maintaining the original busbar dimensions and avoiding increased weight
Solution Approach 2:
The cooling system is merged with the busbar structure by integrating the heat transfer member that directly couples the busbar to the cooling plate. This combination allows the existing cooling system to simultaneously cool both the battery cells and the busbar, improving heat management without adding separate cooling infrastructure or increasing overall weight
2Temperature
If the cross-sectional area of the busbar is increased to reduce heat generation, then heat management is improved, but cost increases
Solution Approach 1:
The heat transfer member serves as a cost-effective intermediary solution rather than enlarging the expensive busbar. This approach manages heat generation through a dedicated heat transfer component, avoiding the high material and manufacturing costs associated with increasing busbar cross-sectional area
Solution Approach 2:
The existing cooling system is made multi-functional by enabling it to cool both the battery cells and the busbar through the heat transfer member. This universal application eliminates the need for separate cooling infrastructure, reducing overall system cost while effectively managing heat generation from both components
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 solution effectively addresses heat generation issues in high-current situations without increasing costs or weight, as it utilizes the existing cooling system for the battery cells to also cool the busbar.
Implementation Method 1
a heat transfer member connected to the busbar, the heat transfer members making contact with the module frame
Data Source
AI summary
A battery module, and a battery pack including the same, includes a battery cell stack, in which a plurality of battery cells are stacked, a module frame surrounding the battery cell stack, a busbar frame covering a part of the battery cell stack that is exposed from the module frame, a busbar connected to an electrode lead protruding from the battery cell stack through a slot formed in the busbar frame, and a heat transfer member connected to the busbar. The heat transfer members make contact with the module frame.