Envia Systems claims energy density record for lithium-ion batteries

- Two to 3 times times current energy density
- testing by ARPA-E
- $7 million from GM

Ticks all the boxes for a serious effort with good prospects for real world production.

Hopefully, all the above & the, "should cost less than half the price of existing li-ion batteries", makes it into production soon.

More at:

http://www.gizmag.com/envia-systems-record-lithium-ion-battery/21653/