Hydrogen fuel cell vehicles are electric vehicles; they use a fuel cell instead of a battery to provide juice.

氢燃料动力车虽然是电力机车，却是利用燃料电池代替蓄电池提供动力。

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Hydrogen is provided by an onboard 35MPa storage tank and air is fed to the fuel cell from a blower. The electric power generated is fed to a lithium battery of the electric drive.

氢气被储存在35MPa的容器中，空气通过鼓风机进入燃料电池，反应产生的电能被储存在锂电池中。

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It might work great for a small battery, like a cell phone, but could create challenges if we're looking to create a fast-charge electric car.

对于类似手机上使用的小电池来说，这样快速充电表现优异，但是如果想用于对电动汽车快速充电，那将是一项挑战。

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Mercedes-Benz has the A-Class E Cell, sold only in Europe, and the B-Class F-CELL, but plans to debut the SLS-AMG E Cell in a battery electric version by 2013.

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How this happens remains to be seen, but there are four distinct options on the table: hybrid cars, plug-in hybrid cars, battery electric cars, and fuel cell cars.

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To have a useful range of 480km (300 miles) or so, an electric car using a fuel cell instead of a battery pack would require around 9kg (20 pounds) of hydrogen.

ECONOMIST: Tech.view