Herin lies the big imponderable: will technology allow us to develop batteries which manage to combine high energy density, long life and easy recyclability?

The regulations, he said, should be tied to developing better batteries rather than arbitrarily set.

But Mr. Klein said he believed the challenge would be in developing small, light batteries that still met the target for driving distance between charges.

Renault would also develop exchangeable batteries for the project.

At the same time battery makers have been developing more compact, powerful and long-lasting batteries.

Ashok Leyland is also developing electric batteries and bio-fuel modes.

M. had learned some valuable technological lessons from the EV1, including how to develop better batteries for electric cars.

We need to develop cost-effective, high-performance batteries.

So they are developing new batteries that use various metal hydrides instead.

Well maybe if we just 'target' some 'investments' we'll develop magical super batteries in the coming decades.