Got this via D-Vice...

http://www.crunchgear.com/2009/07/02/printed-batteries-to-be-rolling-out-before-\
years-end/
So far it is primary (non-rechargeable) cells, but the technology
could be used for any "dry" chemistry (no SLA or NiFe). The
implications for e-assist bikes are interesting as the cells would be
~1mm thick regardless of chemistry or capacity, with Ahr determined by
area you could get some really strange battery packs. You could get
specially shaped packs that fit between the top tube, seat tube, and
down tube of any DF bike, or you could get packs that were the outer
walls of panniers instead of dominating the inside volume of them.

Related question is NiMH a "dry" chemistry?

--
Opus

Lycra Cyclists have Lance Armstrong

Recumbent Cyclists have Sam Wittingham

The Hells Angels have Sonny Barger

E-bikers have---> Ed Begley Jr.

We're totally screwed