Saturday, November 21, 2009

Cutting fuel cell size, weight and cost


The second-generation hydrogen fuel cell system in development at General Motors is half the size, 100 kg lighter and uses less than half the quantity of precious metal (Platinum) of the current generation Chevrolet Equinox Fuel Cell car. The fuel cell power-train – designed with volume production in mind – can be packaged under the hood in about the same space as a four-cylinder engine. It contains GM's fifth-generation PEM fuel cell stack and could be commercialized by 2015. The hardware mechanization has been dramatically simplified, which will help reduce cost, simplify manufacturing and improve durability. The Chevy Equinox Fuel Cell carries about 4.2 kg of compressed hydrogen onboard, enough for about 270 km before a 5–7 min refill is required. Regenerative braking extends the driving range.

GM has invested more than US $1.5 billion in fuel cell technology

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