Legal trouble casts shadow on cheap, 300-mile Envia battery for EVs
A bit shy of two years ago, battery startup Envia Systems looked quite promising. The Silicon Valley company had produced a 400-watt-hours-per-kilogram lithium ion battery and claimed it could be placed inside an electric car that would cost $20,000 and be able to travel 300 miles on one charge. It was enough to bring in millions of dollars in