Is it a version of the fuel cell batteries that Samsung or others are developing?
http://www.theregister.co.uk/2005/11...ung_fuel_cell/
http://www.reghardware.co.uk/2006/01...our_fuel_cell/
Quotes from those articles:
"Still, empty fuel cells will only require a new methanol tank, not a lengthy recharge, and Samsung expects those to become as commonplace as ordinary batteries are today, South Korea's Joong Ang Daily reports."
"Like other methanol fuel cells, the Samsung system uses a catalyst to react methanol and water at the positive electrode. This produces hydrogen and electrons, which combine at the negative electrode with oxygen to create water. The cell has to transfer some of the water back to the anode to continue the reaction and suck the hydrogen across to the cathode to enter into the water-producing reaction. The cell also produces CO2."