Battery Case Adsorbent Compartment for Compact Degassing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing size of battery cases due to higher energy density requirements leads to a larger degassing portion, increasing waste and production costs, and reducing manufacturing efficiency.
Innovation Solution
Incorporating an adsorbent within the degassing portion and an adsorbent compartment formed by a sealing portion in the battery case, utilizing materials like silica gel and activated carbon to adsorb gases, and using a sealing structure to contain the adsorbent, thereby reducing the area needed for degassing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the battery case size is increased to accommodate higher energy density requirements, then the energy storage capacity is improved, but the area of the degassing portion increases leading to more waste and higher production costs
Solution Approach 1:
The patent extracts the harmful gas removal function from the large degassing portion and concentrates it into a small adsorbent compartment. The adsorbent material is extracted and placed in a dedicated sealed compartment, separating the gas adsorption function from the overall degassing structure, thereby reducing waste while maintaining gas removal effectiveness
Solution Approach 2:
The patent employs porous adsorbent materials (such as activated carbon, silica gel, or molecular sieves) within the adsorbent compartment to efficiently adsorb harmful gases. The porous structure provides high surface area for gas adsorption, enabling effective gas removal in a compact space, thus reducing the need for a large degassing portion
2Object-generated harmful factors
If the degassing portion area is increased to ensure adequate gas removal, then the gas venting function is improved, but the manufacturing efficiency decreases and production costs increase
Solution Approach 1:
The patent extracts the gas adsorption function from the large degassing portion and implements it in a compact adsorbent compartment. This extraction allows the majority of the battery case area to be used for productive purposes while maintaining effective gas removal through the concentrated adsorbent system
Solution Approach 2:
The patent changes the approach from passive large-area gas venting to active gas adsorption using specialized materials. By changing from a passive structural solution (large degassing portion) to an active material-based solution (adsorbent compartment), the system achieves effective gas removal with minimal space requirement, thereby improving manufacturing efficiency
3Object-generated harmful factors
If the degassing portion area is increased, then the gas venting capacity is improved, but the battery production cost increases
Solution Approach 1:
The patent extracts the gas removal function from the expensive large degassing portion and implements it in a low-cost adsorbent compartment. The adsorbent compartment uses minimal materials while achieving the same gas removal function, significantly reducing production costs
Solution Approach 2:
The patent employs relatively inexpensive adsorbent materials (such as activated carbon or silica gel) in the adsorbent compartment to replace the need for a large structural degassing portion. These materials provide effective gas adsorption at low cost, reducing overall battery production expenses
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 approach minimizes harmful gas emissions, reduces production costs, and enhances manufacturing efficiency by minimizing the degassing portion area and preventing adsorbent flow during the degassing process.
Implementation Method 1
a degassing portion formed on one side of the electrode assembly accommodating portion and including an adsorbent
Data Source
AI summary
The present disclosure relates to a battery case, a battery, and a method for manufacturing a battery, the battery case comprising an adsorbent compartment formed by a sealing part and an adsorbent in a space of a degassing part in order to reduce the production cost of the battery and improve the efficiency of the battery manufacturing process.