Ripstop Nylon Membrane Mold for Electrolyzer Frame
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Solution Overview
Problem
The widespread adoption of hydrogen as a clean energy source is hindered by the need for a complex and expensive infrastructure for its distribution and the challenges of efficient hydrogen generation, including the durability and cost of membranes in electrolysis processes.
Innovation Solution
The use of a durable and low-cost ripstop nylon fabric membrane, optionally combined with a plastisol-based gasket, in an electrochemical apparatus, along with lightweight high-density polyethylene or polypropylene components, to create a cost-effective and efficient electrolyzer system that can utilize various power sources and capture waste heat for increased efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional membranes are used in electrolysis processes, then durability is improved, but cost increases
Solution Approach 1:
The patent employs disposable sacrificial anodes made from inexpensive metals like zinc or aluminum that corrode during electrolysis to protect the membrane and other components. These sacrificial elements are replaced periodically rather than protecting expensive components, resolving the contradiction by using cheap consumables to protect durable components.
Solution Approach 2:
The patent changes the chemical environment parameters by using buffered electrolyte solutions with specific pH levels and compositions that reduce membrane degradation. By optimizing electrolyte parameters, the membrane durability is improved without requiring expensive specialized membranes.
2Productivity
If complex infrastructure is built for hydrogen distribution, then hydrogen generation capability is improved, but system complexity and cost increase
Solution Approach 1:
The patent divides the hydrogen generation system into modular electrolysis cells that can be independently operated and scaled. Each cell is a self-contained unit with its own membrane, electrodes, and housing, allowing the system to be expanded by simply adding more modules rather than building complex integrated infrastructure.
Solution Approach 2:
The patent designs electrolysis cells that can operate with various power sources (grid electricity, renewable energy, fuel cells) and produce hydrogen suitable for different applications. This multi-functionality reduces infrastructure complexity by using a single platform for multiple purposes.
3Strength
If membrane thickness is increased to improve durability, then membrane strength is improved, but hydrogen ion permeability decreases
Solution Approach 1:
The patent uses composite membrane structures combining multiple materials with complementary properties. For example, thin selective layers are supported by thicker porous substrates, or different polymer layers are laminated together. This composite approach achieves both high strength and high permeability that cannot be obtained with single materials.
Solution Approach 2:
The patent employs porous membrane structures with controlled pore sizes and distributions that provide mechanical strength through the porous framework while maintaining high ion transport pathways. The porosity allows hydrogen ions to pass efficiently while the overall structure provides necessary durability.
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 solution enables the flexible use of renewable energy sources for hydrogen generation, reduces infrastructure needs, and enhances the efficiency and safety of the electrolysis process, making hydrogen fuel more accessible and cost-effective.
Implementation Method 1
A membrane is interposed between the anode and the cathode and hydrogen ions move across the membrane, where they combine with electrons to form hydrogen gas
Implementation Method 2
Hydrogen may be produced by the electrolysis of water, a readily available and inexpensive feedstock, by passing an electric current through the water
Data Source
AI summary
A membrane module and method of making are provided, including a mold therefor. Exemplarily, the module, which comprises a membrane around which is formed a frame, is adapted for use with an electrochemical apparatus. The membrane comprises a fabric made from a synthetic fiber such as nylon, where the nylon is woven into ripstop nylon fabric. The frame, which comprises, exemplarily, high-density polyethylene (HDPE) or polypropylene, includes a wedge-shaped portion to facilitate collection of evolved gases and which provides support to the membrane as well as support to internal electrodes. The mold is adapted to suspend and secure the membrane during formation of the module and to provide a module which secures the membrane within the frame after formation of the module.