Battery Module Dual Chamber Gas Venting and Cooling
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Solution Overview
Problem
Existing battery module designs for electric vehicles face challenges in efficiently cooling battery cells and venting gases, leading to suboptimal performance and safety concerns due to limited contact area between cooling media and cells, and inefficient gas discharge mechanisms.
Innovation Solution
A battery module design featuring a casing with distinct chambers for cells and gas release, where conductive members connect cells within the gas release chamber, and a discharge mechanism directs emitted matter through the bottom of the chamber to external piping, ensuring effective cooling and gas expulsion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ends of the cells range through the second space to the third space, then electrical connection is achieved, but the cooling medium contacts the cells over a small area
Solution Approach 1:
The battery module is segmented into distinct functional spaces: a first space for cells, a second space for gas discharge, and a third space for electrical connection. The conductive members are disposed in the third space to establish electrical connections, while the first space maintains full cell exposure to cooling medium for optimal heat dissipation.
2Temperature
If the first chamber is designed as a cooling passage, then cooling performance is improved, but the structure becomes more complex
Solution Approach 1:
The first chamber is designed to serve multiple functions: it houses the battery cells, acts as a cooling passage for medium flow, and provides structural support. This multi-functionality improves cooling performance without requiring separate dedicated cooling structures, thereby avoiding excessive 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
This design enhances cooling performance and gas discharge efficiency, reducing temperature and pressure loads on module components and preventing gas leakage, thereby improving the reliability and safety of battery modules in electric vehicles.
Implementation Method 1
a first chamber, formed in the casing, in which the plurality of battery cells are disposed; and a second chamber, formed in the casing and isolated from the first chamber
Data Source
AI summary
A battery module includes: a plurality of battery cells; a casing in which the plurality of battery cells are housed; a plurality of conductive members used to electrically connect the plurality of battery cells; a first chamber, formed in the casing, in which the plurality of battery cells are disposed; and a second chamber, formed in the casing and isolated from the first chamber, into which emitted matter from the battery cells is released, wherein: the conductive members and the battery cells are connected together within the second chamber.