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Nissan Motors has reportedly prototyped a solid oxide fuel cell which will be mounted on an electric vehicle to help in the charging process of batteries for vehicles in the future.

SOFCs are highly efficient but have problems starting up. Therefore, they have been believed to be appropriate for cogeneration but not so much so for automobiles. And PEFCs (polymer electrolyte fuel cell) have been the leading candidates for automotive fuel cells.

Nissan prototyped a stack of five donut-shaped cells and confirmed a gross output of 54W using H2 as fuel. It translates to an output density of 0.37kW/L. The prototype was strong enough to endure the temperature change from room temperature to 600°C in 60 minutes and a heavy load operation at 1kW/L for 30 minutes.

(Source) Fuel Cell Works

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