Electrochemical Cell Vacuum Chamber with Gas Return Pipe
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Solution Overview
Problem
Existing manufacturing processes for electrochemical cells face challenges in maintaining the integrity of gas channels within exterior bodies with low rigidity, such as metal foil laminate films, during pressure reduction, leading to potential blockage and incomplete vacuum achievement.
Innovation Solution
A manufacturing apparatus with a return pipe system that includes independent conduits to draw and return gas, maintaining a positive pressure within the exterior body, combined with pressure gauges and flow meters to ensure precise pressure reduction and channel integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressure reduction is applied to remove gas from the exterior body, then gas removal efficiency is improved, but the exterior body deforms due to external pressure causing gas channel blockage
Solution Approach 1:
The support member is installed beforehand to prevent exterior body deformation before pressure reduction occurs. The support member counteracts the external pressure that would otherwise cause the low-rigidity exterior body to deform and block gas channels, allowing effective pressure reduction without shape distortion.
Solution Approach 2:
The support member acts as an intermediary between the external pressure and the exterior body. It absorbs and distributes the external pressure, preventing direct transmission to the exterior body that would cause deformation and gas channel blockage during pressure reduction.
2Ease of manufacture
If low-rigidity exterior body is used to reduce manufacturing cost, then manufacturing cost is reduced, but gas channel blockage occurs during pressure reduction
Solution Approach 1:
The support member is pre-installed to counteract the tendency of low-rigidity exterior bodies to deform under external pressure during vacuum treatment. This allows the use of cost-effective low-rigidity materials while preventing gas channel blockage through proactive structural support.
Solution Approach 2:
The support member provides localized reinforcement at critical positions where the exterior body is most susceptible to deformation. This allows the overall exterior body to maintain low rigidity and low cost while specific areas gain the necessary structural integrity to prevent gas channel blockage.
3Productivity
If exterior body is sealed at target pressure, then sealing efficiency is improved, but incomplete pressure reduction occurs due to gas channel blockage
Solution Approach 1:
The support member prevents exterior body deformation before sealing occurs, ensuring gas channels remain open throughout the pressure reduction process. This guarantees that the target pressure is actually achieved within the exterior body before sealing, preventing incomplete pressure reduction while maintaining efficient sealing operations.
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 apparatus effectively prevents gas channel blockage and ensures consistent pressure reduction across multiple cells, enhancing the manufacturing efficiency and quality of electrochemical cells.
Implementation Method 1
a vacuum pump, etc. After the pressure (degree of pressure reduction) in the exterior body reaches a target value
Implementation Method 2
The conduit is configured to once draw a gas in the exterior body out of the chamber when the pressure in the chamber is reduced, and then return the gas into the chamber
Data Source
AI summary
A manufacturing apparatus includes a chamber, a pressure reducing device, and a return pipe. The pressure reducing device is configured to reduce the pressure in the chamber. The return pipe includes a first opening, a conduit, and a second opening. The first opening and the second opening are respectively and independently open to the interior of the chamber. The first opening is connected to an exterior body. The conduit connects the first opening and the second opening. The conduit is configured to once draw gas in the exterior body out of the chamber when the pressure in the chamber is reduced, and return the drawn gas into the chamber.