Instead of storing energy as electricity in a battery, it is stored as pressure in a tank.

它并不是在一个蓄电池里储存能量作为电力，而是将其在储油箱里储存为压力。

youdao

All batteries work by converting electrical energy into chemical energy during charging, and then converting it back into electricity as the battery is discharged.

所有电池是靠充电的同时通过将电能转换为化学能而工作，随后，当电池放电的时候，再将化学能转化为电能。

youdao

Now some researchers in America have developed a battery that generates electricity in a similar way.

如今美国一些科学家利用相同原理发明来一种能够产生电流的电池。

youdao

"It's not about discrediting battery electricity, " says Dr Zetsche.

BBC: Is hydrogen the future of motoring?

The lithium-ion battery that sends electricity to the Volt's motors takes about six hours to fully charge.

FORBES: Who Revived The Electric Car?

In its model, consumers (or fleet owners) buy EVs, but lease the battery and get electricity through service contracts with Better Place.

FORBES: The Ten Most Controversial Companies in Green