Daily Archives: March 7, 2012

300 Miles on One Charge

Sounds great! But there is a little bit of a catch…

Startup announces big breakthrough for electric vehicle batteries

For years, the electric vehicle industry has been eager to build a better electric car battery: one that extends range while having a longer overall life, is affordable, quick-charging and safe.

Now Envia Systems, a start-up based in Newark, Calif., has announced it has achieved a critical milestone: a rechargeable lithium-ion battery with an “energy density” of 400 watt-hours per kilogram, the highest energy density known to be recorded.

When commercialized, Envia says the 400 wh/kg battery, with a range of 300 miles and a cost of about $25,000, will slash the price of electric vehicles and make them more affordable for mainstream consumers.

To be viable, fully electric cars will have to have something like this kind of range. And recharge will have to be fast — roughly as long as it takes to fill a gas tank (whether this means actually charging the battery or simply swapping it for a charged battery.)

Still, I’m feeling a bit of sticker-shock on the $25K. That’s going to slash the cost of electric cars? Really?