Kleiner $3M investment in EEStor?

Here is a DealFlow column in Business Week that reports that Kleiner Perkins invested in a ceramic battery/ ultracapacitor company, EEStor, back in July, leading a $3M round. There appears to be very little information available on the web about the company, beyond what Business Week's Justin Hibbard has been able to dig up, but there's enough there to be pretty intriguing...