[spycatcher]

Amazingly this only uses NiMH batteries right now. I imagine in the next few years they'll evaluate other types that are being developed like Lithium-metal-sulfide or Lithium-Sulfer dioxide

"The United States Advanced Battery Consortium has a budget of $260 million dollars focused on the development of new battery technologies such as Lithium-Iron Disulfide, Sodium-Sulfer, Lithium-Polymer, and Lithium-Iron."

There's even batteries you can print out on paper: Power Paper

[Don Joe]

"There's even batteries you can print out on paper: Power Paper"

From the article:

"And unlike conventional battery electrolytes, the Power Paper creation is environmentally safe and doesn't require a hard metal case typical in ordinary dry-cell batteries."

I wonder if Polaroid might go after them? The "Polapulse" technology has been around for quite a while, and this stuff looks very similar to it from what I can read in that article.