NEW ARTICLE Portable Batteries using Fuel Cells

Imagine you've been chatting for hours on your cellphone and it's running low on power. But instead of looking for the nearest electrical outlet, you recharge the phone with a squirt of clear liquid from a little bottle.

That's the vision of Toshiba Corp. and a number of other Japanese electronics companies, which are readying gadgets that will swap their batteries for a long-anticipated alternative energy source: fuel cells. Fuel cells combine hydrogen with oxygen to produce electricity, providing power in a way that is potentially cleaner and cheaper than many conventional energy sources.

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