Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Molten Carbonate Fuel Cells are a type of fuel cell that use high-temperature molten carbonate salts as the electrolyte. They operate at temperatures around 650°C and can efficiently convert chemical energy from fuels into electrical energy.
Related terms
Electrolyte: A substance, in this case, high-temperature molten carbonate salts, that conducts electricity when dissolved or melted. It allows ions to move between the anode and cathode in a fuel cell.
Anode: The electrode where oxidation occurs in a fuel cell or battery. In molten carbonate fuel cells, it is typically made of porous nickel material and serves as the site for the electrochemical reaction with the fuel.
The electrode where reduction occurs in a fuel cell or battery. In molten carbonate fuel cells, it is usually made of porous ceramic material and facilitates the electrochemical reaction with oxygen or air.