Battery Module Cell Holder Blocking for Liquid Leakage Prevention
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Solution Overview
Problem
Existing battery modules face challenges in preventing the leakage of liquid solutions, such as urethane or silicone, when cells are not fully populated in the cell holder, leading to inefficiencies and potential damage.
Innovation Solution
A battery module design that incorporates a cell holder with a blocking part, which can be detachably attached to cover empty spaces, using a combination of blocking blocks and sheets to seal the insertion regions, preventing the leakage of liquid solutions during the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate cell holder is added to prevent leakage when cells are missing, then leakage prevention is improved, but device complexity increases
Solution Approach 1:
The blocking part is divided into a blocking body that fits into the cell holder and a separate blocking sheet that covers the insertion region. This segmentation allows the leakage prevention function to be added without redesigning the entire cell holder structure, thus improving reliability while minimizing complexity increase.
Solution Approach 2:
The blocking part acts as an intermediary component between the cell holder and the liquid solution. It provides a simple interface that seals the insertion region without requiring complex modifications to either the cell holder or the sealing mechanism.
2Adaptability or versatility
If cells are not fully populated in the cell holder, then capacity flexibility is improved, but liquid solution leakage occurs
Solution Approach 1:
The blocking sheet is designed to be adaptable to different cell population configurations. It can be positioned to cover only the empty insertion regions, allowing the system to dynamically adjust to various capacity requirements while maintaining leakage prevention.
Solution Approach 2:
The blocking part is applied locally only to the empty insertion regions where cells are missing. This localized approach provides leakage prevention exactly where needed without affecting the regions where cells are properly installed, thus maintaining capacity flexibility.
3Reliability
If a blocking part is added to cover empty spaces, then leakage prevention is improved, but manufacturing complexity increases
Solution Approach 1:
The blocking sheet is designed as a simple, inexpensive component that can be easily manufactured and discarded or replaced if needed. This approach minimizes manufacturing complexity while providing effective leakage prevention.
Solution Approach 2:
The blocking part is designed to be installed after cell assembly but before liquid solution filling. This preliminary action ensures that leakage prevention is in place before the critical filling operation, simplifying the overall manufacturing process by preventing potential contamination or rework.
Data Source
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AI summary
The present disclosure relates to a battery module including a cell holder provided with an insertion region into which battery cells disposed in a plurality of columns are inserted and a blocking part which covers the insertion region into which the battery cell is not inserted.