Fuel Cells - Astris Energi - #1

Active area

250 cm²

Voltage Open circuit : 0.9 - 1 V/cell

Full current : 0.6 - 0.8 V/cell

Cell current At room temperature : 12 A max At 70°C : 25 A max

Circulating 6N - 10N KOH

Electrolyte

Fuel

Hydrogen

Oxidant

Air

Stack operating temperature

0 - 80°C

Ambient Temperature : -25 to +50°C

Humidity : 5 to 95% RH

Astris POWERSTACK™ MC250 is a monopolar, alkaline fuel cell stack for use in fuel cell systems in the 300 W - 10 kW range. Through the elimination of platinum as a catalyst and the use of an inex­pensive electrolyte, the POWERSTACK™ MC250 has a much lower material cost than competing low temperature fuel cells.

The use of potassium hydroxide as an electrolyte

allows the POWERSTACK™ MC250 to operate

at sub-zero temperatures. With its low operating temperature and no requirement for pre-start humidification, the MC250 has one of the most rapid startup times of any low-temperature fuel cell.

Conceptually similar to the proven LABCELL™ LC200 design, this product is modular, allowing assembly of stacks in multiples of 300 W nominal power up to 2400 W per stack. Stacks operate on hydrogen and air, at ambient pressure.

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September 2004 - Note: ASTRIS ENERGI Inc. reserves the right to change this specification without notice.