Bye-Bye Batteries?

A notebook that can run for 10 hours--or longer--before it needs rejuicing? That's the promise of a new battery technology called direct methanol fuel cells. A potential successor to the rechargeable and disposable batteries that power many of today's mobile digital devices, DMFCs generate power by mixing methanol with air and water.

One catch: Most companies are still figuring out how to maximize the power DMFCs provide. Inside the fuel cell, water and methanol must be separated from the catalyst by a membrane. The higher the ratio of methanol to water is, the more powerful the DMFC (and the smaller it becomes). Also undecided: whether to make the new DMFCs disposable or rechargeable.


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http://www.pcworld.com/news/article/0,aid,116358,00.asp

good technology.