Proton Exchange Membrane Fuel Cell

Proton Exchange Membrane Fuel Cell

A Proton Exchange Membrane Fuel Cell is an electrochemical device that utilizes the redox interaction between hydrogen and oxygen to produce electricity. At its core is a proton-conductive polymer electrolyte membrane, which allows protons to pass while blocking electrons. In the anode, hydrogen undergoes oxidation into protons and electrons. Protons move through the membrane to the cathode, while electrons flow through an external circuit, generating current. At the cathode, oxygen is reduced, combining with protons and electrons to form water, completing the electrochemical process. They are valued for their high power density, rapid response, and operation at moderate temperatures, suitable for power generation applications. Generates electricity through an electrochemical reaction between hydrogen and oxygen, facilitated by a proton-conducting membrane, with water as the only byproduct.


→  A polymer electrolyte membrane that selectively permits proton transport while obstructing electron flow, typically composed of a perfluorosulfonic acid polymer.

→  The electrode where hydrogen gas undergoes oxidation into protons and electrons, commonly coated with a platinum catalyst.

→  The electrode where oxygen gas is reduced by combining with protons and electrons, also coated with a platinum catalyst.

→  Porous substrates adjacent to the electrodes facilitating gas diffusion and water management.

→  Conductive plates distributing reactant gases and providing electrical connectivity between individual cells in a fuel cell stack.

→  A compilation of individual fuel cells interconnected in series or parallel to enhance power output.

→  Heat regulation mechanism maintaining optimal temperature within the fuel cell stack to prevent overheating.

→  Encompasses pumps, valves, and controllers for managing reactant flow rates, pressure, and overall system operation.

→  Diverse techniques for hydrogen storage, including compressed gas tanks, liquid hydrogen reservoirs, and solid-state hydrogen storage materials.

→  Includes all auxiliary components and systems necessary for the overall operation of the fuel cell system, such as cooling, heating, and control systems.