Such technology could transform regular electric vehicles, as well as plug-in hybrids and range-extended electric cars.
The typical plug-in hybrid goes 10-20 miles on its smaller battery, but this could leap to 30-60 miles should VW's lithium-air chemistry prove viable.
Full battery-electric vehicles would comfortably leap to 200-300 miles, maybe more if energy efficiency is towards the top end of VW's estimates. Alternatively, smaller, lighter battery packs could be used to match the range of current electric vehicles--beneficial in city cars, for example.