![]() ![]() In a passenger car, putting roughly 400 fuel cells together will produce up to 120 kilowatts of power output (163 horsepower). This stack of proton-exchange membrane fuel cells (PEMFC) - also known as polymer electrolyte membrane (PEM) fuel cells - is where an electrochemical exchange of the reactant gases hydrogen and oxygen produces electricity.Ī single fuel cell generates just a small amount of power, which is why engineers stack them in layers separated by bipolar plates. To bring costs down, the two companies are focusing their attention on the fuel-cell stack, the heart of the hydrogen powertrain. ![]() Bosch and the startup PowerCell Sweden aim to solve that problem. But before fuel-cell vehicles can rival conventional ones, there is still one big obstacle to surmount: steep manufacturing costs. ![]() And that’s why hydrogen technology is sure to figure prominently on the road to low-carbon transportation, especially when it comes to electrifying heavy trucks. But there is one crucial difference: an electrical powertrain produces zero local emissions. Once its fuel has been topped up - which takes just a few minutes - the car’s range is over 500 kilometers. On the surface of it, there’s very little to distinguish a fuel-cell car from one that runs on gasoline or diesel.
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