Battery Module Venting Cover With Detachable Gas Release Cap
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery modules face challenges in achieving improved stability and performance, particularly in efficiently discharging gases generated during charging and discharging processes, which can lead to explosions if not managed properly.
Innovation Solution
The battery module incorporates a design with openable venting portions on each battery cell, a bus bar assembly for electrical connection, a cover portion with through-holes corresponding to the venting portions, and a cap portion that detachably couples with the cover portion, allowing for efficient gas discharge and enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a cover portion is provided to cover the battery cells, then protection and structural integrity are improved, but gas discharge efficiency deteriorates
Solution Approach 1:
The cover portion is segmented with through-holes positioned to correspond with the venting portions of battery cells. This segmentation allows the cover to maintain overall structural integrity while creating localized openings for gas discharge, resolving the contradiction between protection and gas venting capability.
Solution Approach 2:
The cap portion acts as an intermediary component that detachably couples to the cover portion. It provides a controlled interface for gas discharge through the through-holes, enabling the system to maintain both protective coverage and efficient gas venting by mediating between the cover structure and the venting portions.
2Object-generated harmful factors
If venting portions are made openable, then gas discharge capability is improved, but structural stability deteriorates
Solution Approach 1:
The venting portions are designed to be openable rather than fixed, transitioning from a closed state during normal operation to an open state when gas pressure builds up. This dynamic characteristic allows the venting portions to maintain structural stability during normal use while providing effective gas discharge when needed.
Solution Approach 2:
The venting portions are configured to automatically open in response to internal gas pressure without requiring external intervention. This self-service mechanism ensures that gas discharge occurs reliably when needed while maintaining structural integrity during normal operation, as the opening action is triggered only by the necessary condition of gas pressure buildup.
3Ease of repair
If cap portion is detachably coupled, then maintenance and repair ease are improved, but manufacturing complexity deteriorates
Solution Approach 1:
The coupling mechanism is segmented into discrete coupling portions on both the cap portion and cover portion. This segmentation allows for simple, modular engagement features that facilitate easy detachment and reattachment while avoiding complex coupling mechanisms, resolving the contradiction between ease of repair and manufacturing 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 the stability and performance of the battery module by ensuring efficient gas discharge, reducing the risk of explosions, and allowing for wider applications in electric vehicles, renewable energy systems, and eco-friendly technologies.
Implementation Method 1
the cap portion and the cover portion may be configured to separate based on a pressure of a space between the cover portion and the plurality of battery cells
Implementation Method 2
At least one of the cap portion and the cover portion may include an elastic body
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A battery module of the present disclosure includes: a plurality of battery cells each including an openable venting portion on a first surface, a bus bar assembly electrically connecting the plurality of battery cells, a cover portion covering the plurality of battery cells and including a through-hole in an area corresponding to an openable venting portion of a battery cell of the plurality of battery cells, and a cap portion covering the through-hole and detachably coupled to the cover portion.