Battery Module Venting Guiding Portion Design
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Solution Overview
Problem
Existing battery modules face challenges in preventing combustion or explosion due to gas generation in battery cells, and they have complex assembly processes with increased size and manufacturing costs due to the need for multiple mechanical and electrical connection members.
Innovation Solution
A battery module design featuring a battery cell array with frames that have a venting guiding portion, allowing gas discharge when internal pressure increases, and an assembly type fastening structure for stable stacking without additional fastening means, reducing the number of parts and simplifying the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a battery module uses multiple mechanical fastening and electrical connection members to assemble battery cells, then the battery cells can be stably fixed and electrically connected, but the assembly process becomes complicated and the system size increases
Solution Approach 1:
The patent combines mechanical fastening and electrical connection functions into a single integrated frame structure. The frame simultaneously secures the battery cell mechanically and provides electrical connection through conductive elements, eliminating the need for separate fastening and connection components.
Solution Approach 2:
The frame is designed as a multi-functional component that performs multiple roles: mechanical support, cell fixation, electrical connection, and structural alignment. This universal design reduces the total number of parts needed in the battery module assembly.
2Ease of manufacture
If additional space is provided for coupling mechanical fastening and electrical connection members, then proper assembly is enabled, but the total system size increases
Solution Approach 1:
By merging fastening and electrical connection functions into the same frame structure, the patent eliminates the need for additional coupling space that would be required for separate components. The integrated design allows both functions to be achieved within the existing battery cell footprint.
3Reliability
If a battery cell uses weakened portion or additional gas discharge structure for venting, then gas can be discharged when internal pressure increases, but the manufacturing process becomes complicated and manufacturing cost increases
Solution Approach 1:
The patent integrates the gas discharge function into the existing frame structure that already serves mechanical and electrical functions. The frame includes venting portions that allow gas discharge without requiring separate venting components or additional manufacturing steps for creating weakened portions in the battery cell itself.
4Stability of the object's composition
If multiple parts are used to stack battery cells in a fixed state, then stable fixation is achieved, but the number of parts increases and manufacturing cost rises
Solution Approach 1:
The patent uses an integrated frame that combines multiple functions (mechanical support, electrical connection, and cell fixation) into a single component. This reduces the number of separate parts needed to achieve stable battery cell stacking while maintaining structural integrity.
Solution Approach 2:
The frame is designed as a universal component that performs multiple functions simultaneously: providing structural support for stacking, securing battery cells in fixed positions, and enabling electrical connections. This multi-functionality reduces the total part count while maintaining stability.
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 effectively prevents combustion or explosion by allowing controlled gas discharge and simplifies the assembly process, reducing manufacturing costs and increasing the compactness of the battery module.
Implementation Method 1
when internal pressure of each of the battery cells increases, sealing of the battery case is released through the venting guiding portion
Data Source
AI summary
A battery cell is provided. The battery cell includes a battery case, an electrode assembly located in the battery case, the electrode assembly comprising a cathode, an anode, and a separator disposed between the cathode and the anode, an electrolyte present in the battery case, the battery case being sealed at a perimeter thereof, and a frame coupled to the perimeter of the battery case, the frame having a venting guiding portion at the perimeter of the battery case, such that sealing of the battery case is released through the venting guiding portion when internal pressure of the battery cell increases, the venting guiding portion comprising a reduction in the amount of material of the frame in a predetermined location at the perimeter of the battery case. A battery cell module is also provided.