Solid Oxide Cell technology – enabler of efficient and emission free distributed power generation.
Solid oxide cells (SOC) are the most efficient converters of fuel to power and heat and are particularly well suited for distributed power generation. SOCs also holds great promise for enabling the hydrogen economy through their use in electrolysers to store wind and solar electricity and producing green hydrogen or synthetic fuels.
What is fuel cell?
Fuel cells use hydrogen or hydrocarbon to produce electricity through an electrochemical process, with heat as the by-product.
How the SOC operates?
Solid Oxide cells have three component parts: anode, cathode and electrolyte. The anode and cathode have a relatively high porosity, which allows gasses to pass through them. The cathode side receives oxygen (from air) and the anode receives hydrogen (and carbon monoxide if the hydrogen is derived from a hydrocarbon fuel source). The electrolyte, between the anode and cathode, is dense and conducts oxygen ions from the cathode to the anode. As the negatively charged oxygen ion combines with hydrogen, hydrogen transforms from H2 to H2O, or water. The negatively charged oxygen ions on the anode side supply electrons that return through an external load to the electron deficient cathode side, producing a flow of electrons, or electricity. Because of the electrochemical process and the resistance in the solid ceramic electrolyte, heat is also generated.
What is fuel sell stack?
Single cell is the heart of any system. Typical industrially produced single planar SOC is a thin (ca 0.4 mm) plate, either rectangular (ca 12*12cm) or round (ca 15cm in diameter) in shape.
Single cells provide limited amounts of power and are therefore combined into stacks. A stack consists of multiple single cells, which are separated by similarly shaped metal interconnector plates. These connect single cells in series and contain channels for air and fuel distribution.
What is fuel cell system?
One or multiple stacks are integrated into a fuel cell system.
A fuel cell system contains various components for fuel distribution, thermal management, power conversion, controls etc (Balance of Plant (BoP) components).
These systems can generate efficient power in multiple applications – residential, commercial, industrial and transportation.
Elcogen’s SOCs are the best performing, most cost efficient and durable processor of primary energy conversion available globally.