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Glossary

The Kallanish Glossary aims to be a useful resource for complex industry specific terminology. We are constantly adding to our glossary, so if you have a suggestion or amendment please do get in touch.
Active area

The area of a fuel cell electrode which is electrochemically active and able to produce electricity from the supplied fuel.

Alkaline fuel cell (AFC)

A type of fuel cell containing a potassium hydroxide electrolyte to react hydrogen and oxygen forming water,heat and electricity

Anode

The fuel electrode in a fuel cell at which oxidation occurs

APU

An auxiliary power unit (for example a fuel cell) provides electricity and is supplemental to the main power source of a vehicle (such as an internal combustion engine).

A single cell

A single cell is the smallest and most basic form of fuel cell. It is useful for testing and development purposes to predict how stacks will perform.

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