Why is a hydrogen fuel cell better than a battery?
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Fuel cell electric vehicles have a much higher energy density by weight, allowing them to overcome the range and weight challenges associated with battery electric vehicles. Hydrogen tanks are also more compact and lighter than an array of fully charged batteries
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hope it helps you
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batteries are far more efficient than fuel cells, according to VW. ... The process of converting hydrogen into electricity within a fuel cell is also inherently inefficient, according to the study.
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