Secondary Battery Module Through-Type Cool Channel Gas Management
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Solution Overview
Problem
Secondary battery modules face issues with overcharging, temperature increases, and gas leakage due to internal shorts, leading to contaminated air being introduced into vehicles, which is difficult to prevent and cool effectively.
Innovation Solution
A secondary battery module with a through-type cool channel design, featuring stacked battery cells, partition tubes with cool channels, and a gas discharge pipe to direct gases outside, while maintaining a sealed case for effective heat exchange and contamination prevention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the case is sealed to prevent contaminated air leakage, then safety is improved, but cooling capability deteriorates due to inability to dissipate heat effectively
Solution Approach 1:
The case is segmented into multiple functional zones: a sealed containment space for preventing contaminated air leakage, and a separate cooling channel system for heat dissipation. The partition wall divides these functions, allowing the case to simultaneously maintain sealing integrity while providing effective cooling pathways for battery thermal management.
2Temperature
If a cooling part is added to cool battery cells, then temperature control is improved, but sealing capability deteriorates
Solution Approach 1:
The cooling part is nested within the case structure rather than being an external addition. The cooling channels are integrated into the partition wall and case body, forming a nested configuration where the cooling system is contained within the sealed case structure. This allows the case to maintain its sealing capability while incorporating effective cooling functionality.
3Temperature
If the case is opened to allow cooling airflow, then cooling efficiency is improved, but contaminated air leakage worsens
Solution Approach 1:
The partition wall acts as an intermediary structure that separates the cooling airflow path from the battery cell containment space. It includes sealed openings that allow cooling air to pass through while preventing contaminated air from escaping. The partition wall mediates between the need for cooling airflow and the requirement to contain contaminated air, enabling both functions to coexist.
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 solution effectively prevents contaminated air from entering vehicles and facilitates easy cooling of battery cells by directing gases to a designated area, ensuring the module's integrity and efficiency.
Implementation Method 1
a cool channel (210) which passes through the electrode assembly (300) and a heat exchange medium is passed through the cool channel (210) so as to cool the electrode assembly (300)
Implementation Method 2
a heat exchange medium is passed through the cool channel (210) so as to cool the electrode assembly (300)
Data Source
AI summary
Provided is a secondary battery module having a through type cool channel for preventing contaminated air generated from a pouch type cell from being introduced into a vehicle, and more particularly, a secondary battery module having a through type cool channel capable of preventing contaminated air generated from battery cells from being introduced into a vehicle and easily cooling heat generated from the battery cells, by sealing an electrode assembly, in which a plurality of battery cells are stacked, by a case, forming a separate gas discharge pipe in the case to discharge the gases to a designated place, and coupling both ends of a partition tube having a cool channel formed therein to contact the battery cells and communicate with an outside of the case.