A startup company working on car batteries claims it has
developed a key breakthrough that could one day mean an electric car with a
300-mile range with an affordable price tag, GIGAOM
reports.

The company, Envia Systems, backed by venture capitalists,
General Motors and the Department of Energy, had plans to announce Monday that
the company has created a lithium-ion battery that has an energy density of 400
watt-hours per kilogram.

To find out why the breakthrough was possible and what is
contained in the ‘secret sauce’ that allows the longer-range battery to carry
the same weight as current 100-mile capacity electric cars, read
the entire story here.

Photos: Grants Pass, Ore. charging station (via Oregon Department of Transportation).