Most companies who claim they can efficiently make such batteries are unlikely to be able to do so.But most companies who have been talking about bringing PHEVs to market have not done so.

• 大多数宣称可以生产这类电池的制造商未必真的都有这样的实力，但是大部分谈论把电动汽车推向市场的制造商没有一个这样做过。