Differential-Pressure Electrolysis Device With Movable Resin Frame
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Solution Overview
Problem
Differential pressure electrolysis devices face issues with electrolyte membrane deformation and peeling due to high pressure gas generation, leading to wrinkles and potential separation from resin frame members during swelling.
Innovation Solution
The device incorporates a resin frame member bonded to the electrolyte membrane's peripheral edge, with positioning members allowing the frame to move along the surface direction, preventing membrane deformation and peeling by accommodating expansion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electrolyte membrane is bonded to a resin frame member, then the membrane is supported and positioned, but the membrane may peel off from the resin frame member when it undergoes swelling due to high pressure gas generation
Solution Approach 1:
The resin frame member is designed to be movable relative to the separators along the surface direction, allowing it to dynamically adjust its position as the electrolyte membrane swells during operation. This dynamic capability prevents peeling by accommodating the membrane's expansion while maintaining continuous support and bonding integrity.
2Reliability
If the electrolyte membrane is bonded to a resin frame member, then the membrane is supported, but wrinkles occur (deformation occurs) in the electrolyte membrane due to pressure from high pressure gas
Solution Approach 1:
The movable resin frame member can shift position to accommodate membrane swelling, preventing the buildup of stress that would cause wrinkling. By allowing controlled movement, the system maintains membrane flatness while providing continuous structural support during high pressure gas generation.
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 configuration effectively prevents membrane wrinkling and peeling, maintaining high pressure gas generation efficiency by allowing the frame to move with the membrane, ensuring stable operation and efficient gas recovery.
Implementation Method 1
The membrane electrode assembly includes a first electrode, a second electrode, and an electrolyte membrane that is interposed between the first electrode and the second electrode
Implementation Method 2
in the case that such a configuration is applied to the differential pressure electrolysis device, another concern arises in that the electrolyte membrane may peel off from the resin frame member at a time when the electrolyte membrane undergoes swelling
Data Source
AI summary
A differential pressure electrolysis device is equipped with a resin frame member bonded to a peripheral edge portion of an electrolyte membrane. A first member is interposed between a first separator and the resin frame member, and a second member is interposed between the resin frame member and a second separator. The differential pressure electrolysis device is equipped with a positioning member. The positioning member positions the resin frame member relative to the first member or the second member. However, the positioning member permits the resin frame member to move along a surface direction.