Hi,
They interview Gerbrand Ceder, who is the head of the MIT lab where they developed this battery, on Talk of the nation Science Friday:
Science Friday Archives: Building a Better Battery
They have licensed it to 2 companies, 1 foreign and 1 in the US (probably A123?).
The battery could be charged in about 1 minute; if you have the capability! And it will absorb all the regenerative power you can throw at it. This is a big development.