Heres an article about it
The last paragraph (excerpt below) is probably the most important from a global perspective, as it could have truly huge effect on the practicality and efficiency of hybrid vehicles.
Plus having more power, while being lighter and charging far faster makes this the first genuine breakthrough battery technology for mobile devices since lithium-ion. Bring it on.
Major features of new battery:
High Energy Density
Small and light, the new battery offers a high level of storage efficiency. The prototype battery is only 3.8mm thick, 62mm high and 35mm deep and has a capacity of 600mAh.
Eco Friendly
The new battery can quickly store energy produced by locomotives and automobiles. This speedy and highly effective recharge characteristic of the battery will support CO2 reduction, as the battery can save and re-use energy that was simply wasted before.