Diagram describing chemicals contained in different batteries

Plug-in hybrid electric vehicles and pure electric vehicles are better for the planet. They generate less pollution and less greenhouse gas emissions.

So why don't we see more of them on the roads? Blame the battery. The lithium-ion versions currently used simply don't have the capacity that drivers want. A Nissan Leaf, for example, can travel only 100 miles on a single charge.

Full story at the Waterloo Institute for Sustainable Energy (WISE)