Huh, though it's not directly related, but I thought this was interesting when I saw it linked on another forum:
Quote:
Stanford researchers have found a way to use silicon nanowires to reinvent the rechargeable lithium-ion batteries that power laptops, iPods, video cameras, cell phones, and countless other devices.
The new technology, developed through research led by Yi Cui, assistant professor of materials science and engineering, produces 10 times the amount of electricity of existing lithium-ion, known as Li-ion, batteries. A laptop that now runs on battery for two hours could operate for 20 hours, a boon to ocean-hopping business travelers.
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http://news-service.stanford.edu/new...re-010908.html
Now if an eInk device can give over a week's battery life (or more) with just a conventional Li-ion battery, than this could potentially give you months. Either that, or drastically reduce the size of battery needed.