Battery Heat Dissipation Module With Phase Change Material
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Solution Overview
Problem
Current battery modules with cooling components have complex structures due to the inclusion of cooling pipes and power apparatuses, which can lead to thermal runaway and safety issues if heat dissipation is not managed effectively.
Innovation Solution
A heat dissipation module comprising a separator with an accommodating space and a communication groove filled with thermally conductive material, along with a first barrier to prevent the material's passage, simplifies the structure by eliminating the need for cooling pipes and power apparatuses, allowing for efficient heat absorption and dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cooling components including cooling pipes and power apparatuses are installed between battery cells, then heat dissipation effectiveness is improved, but device complexity increases
Solution Approach 1:
The patent extracts and eliminates the complex cooling pipes and power apparatuses from the heat dissipation system, retaining only the essential heat dissipation function through a simplified structure consisting of a heat dissipation plate, phase change material, and barrier layer
Solution Approach 2:
The heat dissipation system utilizes the phase change material's inherent phase transition properties to automatically absorb and dissipate heat without requiring external power apparatuses or complex control systems, achieving self-service heat dissipation
2Use of energy by moving object
If thermally conductive material is used for heat dissipation, then heat absorption efficiency is improved, but risk of material seepage affecting battery cells increases
Solution Approach 1:
The patent introduces a barrier layer as an intermediary between the thermally conductive phase change material and the battery cell. This barrier layer prevents direct contact and potential seepage of the material onto the battery cell while maintaining effective thermal coupling for heat dissipation
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 proposed solution results in a simpler battery module structure with effective heat dissipation, preventing thermal runaway and ensuring safe operation by absorbing and dissipating heat generated by battery cells without the risk of thermally conductive material seepage affecting the battery cells.
Implementation Method 1
The thermally conductive material is filled in the accommodating space, and the thermally conductive material is configured to absorb heat generated in the battery module and dissipate the heat out of the separator through the communication groove
Implementation Method 2
the thermally conductive material is a phase-change material
Data Source
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AI summary
Embodiments of this application relate to the field of battery technologies, and disclose a heat dissipation module and a battery module. The heat dissipation module is applied to the battery module, and includes: a separator, where an accommodating space is provided inside the separator, a communication groove is provided on a side of the separator, and the communication groove communicates with the accommodating space; a thermally conductive material, filled in the accommodating space, where the thermally conductive material is configured to absorb heat generated in the battery module and dissipate the heat out of the separator through the communication groove; and a first barrier, configured to be disposed between a battery cell of the battery module and the separator, wherein the first barrier is configured to stop the passage of the thermally conductive material. The heat dissipation module absorbs the heat generated in the battery module through the thermally conductive material, and the heat dissipation module includes only the separator, the thermally conductive material, and the first barrier, not requiring a cooling pipe and other power apparatuses. Therefore, the heat dissipation module has a relatively simple structure.