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Do all electric vehicles require more energy storage?

An all electric vehicle requires much more energy storage, which involves sacrificing specific power. In essence, high power requires thin battery electrodes for fast response, while high energy storage requires thick plates.

Do electric vehicles need a high-performance and low-cost energy storage technology?

In addition to policy support, widespread deployment of electric vehicles requires high-performance and low-cost energy storage technologies, including not only batteries but also alternative electrochemical devices.

Are fuel cell electric vehicles more efficient than battery electric vehicles?

Some analysts have concluded that fuel cell electric vehicles are less efficient than battery electric vehicles since the fuel cell system efficiency over a driving cycle might be only 52%, whereas the round trip efficiency of a battery might be 80%. However, this neglects the effects of extra vehicle weight on fuel economy.

Can batteries and hydrogen fuel cells reduce the cost of EVs?

Battery, plug-in hybrid and hydrogen fuel-cell EVs are all included in these data. The scenario data are from ref. 22. Here, we evaluate the potential of batteries and hydrogen fuel cells for improving the performance and reducing the cost of EVs.

What technological properties should be improved to enable electric vehicle markets?

The technological properties that must be improved to fully enable these electric vehicle markets include specific energy, cost, safety and power grid compatibility. Six energy storage and conversion technologies that possess varying combinations of these improved characteristics are compared and separately evaluated for each market.

How much energy does a battery EV use?

Note that the heavy battery EV (2,269 kg) requires almost as much energy (152.7 kWh) as the fuel cell EV (165.7 kWh) to travel 300 miles. This advantage diminishes at shorter range as the battery EV becomes lighter.