Resin Chamber Frame Element for Electrolyzer Voltage Drop Reduction
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Solution Overview
Problem
Conventional electrolysis chambers experience voltage drops due to frame thickness, leading to increased power consumption and energy costs for cooling, and metal frames cause corrosion from leakage currents.
Innovation Solution
A chamber frame element made of resin with a reduced thickness and a bag-like structure that minimizes voltage drops and eliminates corrosion issues by eliminating the need for a manifold inside the electrolysis chamber.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a metal-made frame with sufficient thickness is used to connect manifolds to inlet and outlet, then structural strength and manifold connection capability are improved, but voltage drop increases and power consumption increases
Solution Approach 1:
The patent removes the manifold from the electrolysis chamber structure entirely. Instead of integrating manifolds into the frame (which required thick metal construction), the system uses external piping connected to the electrolyte circulation system, extracting the fluid distribution function from the structural frame and eliminating the need for thick-walled chambers.
Solution Approach 2:
The patent employs thin-walled electrolysis chambers (5-10mm thickness) that would be insufficient for structural strength if made of metal, but are adequate when using corrosion-resistant non-metallic materials. These thin walls reduce the active electrolysis path length and associated voltage drops while maintaining structural integrity through material selection.
2Strength
If a metal-made frame is used to provide structural support, then mechanical strength is improved, but corrosion occurs due to leakage currents
Solution Approach 1:
The patent utilizes non-metallic composite or polymer materials for the electrolysis chamber frame and structure. These materials provide sufficient mechanical strength while being inherently resistant to electrochemical corrosion from leakage currents, eliminating the need for sacrificial anodes or complex corrosion protection systems required with metal frames.
Solution Approach 2:
The patent employs non-metallic structural components that are immune to electrochemical corrosion. While these materials may have different lifespan characteristics compared to protected metals, they eliminate the progressive degradation and replacement costs associated with corroding metal frames, sacrificial anodes, and related maintenance.
3Use of energy by moving object
If frame thickness is reduced to minimize voltage drop, then power consumption decreases, but structural strength and manifold connection capability are compromised
Solution Approach 1:
The patent extracts the manifold function from the chamber structure, using external piping systems instead of internal manifold integration. This allows the chamber walls to be optimized purely for containing the electrolyte and providing electrical isolation, rather than needing to accommodate both structural and fluid distribution functions, enabling thinner walls without compromising overall system capability.
Solution Approach 2:
The patent successfully implements thin-walled chambers (5-10mm) that minimize the active path length for voltage drops while maintaining structural adequacy through proper material selection and design. The thin walls reduce the distance over which voltage is lost while current passes through the electrolyte, directly lowering power consumption.
4Ease of operation
If a manifold is integrated inside the electrolysis chamber, then fluid distribution is simplified, but device complexity increases due to additional components and connections
Solution Approach 1:
The patent removes the manifold from the electrolysis chamber assembly entirely. Fluid distribution is achieved through external piping connected to the electrolyte circulation system, separating the fluid distribution function from the chamber structure. This simplifies the chamber design to its essential function of containing electrolyte and providing electrical isolation.
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
The chamber frame element of the present invention, which has a smaller amount of voltage drop, consumes less reactive power than the prior art, and exhibits no metal corrosion, is a chamber frame element (14) for an electrolyzer or an electrodialysis cell. The chamber frame element (14) includes: a bag body (141); a frame (142) housed in an interior space of the bag body (141); and an inlet (143) and an outlet (144) to which piping can be attached, which are formed on the outer side of a region where the frame is housed in the bag body (141).