World's smallest working fuel cell

People are becoming more and more reliant on the portable gadgets they carry every day and at no time is that reliance more pronounced as when those gadgets’ batteries run out of juice. While we’ve seen some fuel cell technologies appear in recent years that offer the future prospect of powering portable devices, none are quite as small as this new working fuel cell created by US chemical engineers and featured recently in New Scientist that measures just 3 millimeters across.

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