Polymer Electrolyte Membrane Fuel Cell Using a Tungsten Oxide-Coated Membrane Electrode Assembly
This technology relates to a polymer electrolyte membrane fuel cell featuring a membrane electrode assembly (MEA) with a tungsten oxide coating of a specific thickness.
Conventional polymer electrolyte membrane fuel cells often suffer from reduced durability of the membrane electrode assembly due to radicals and degradation generated during operation.
By protecting the membrane electrode assembly with a tungsten oxide coating, this technology enhances the durability and operational stability of fuel cells.
Key Features:
- A polymer electrolyte membrane fuel cell comprising a unit cell that includes a membrane electrode assembly (where the electrolyte membrane and catalyst layer are integrated), a gas diffusion layer, and a separator.
- A configuration in which the surface of the membrane electrode assembly is coated with tungsten oxide to a thickness of 450 to 500 nanometers.
- A configuration in which the tungsten oxide is applied to the surface of the membrane electrode assembly via sputtering or electron-beam physical vapor deposition.
- A polymer electrolyte membrane fuel cell structure with improved membrane electrode assembly durability through a tungsten oxide coating.
