New Apple battery so powerful that your phone could last weeks

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'Fuel cell': The new tech could end the misery of short battery life for millions - image: mirror.co.uk

Apple patent envisions fuel cell battery that could power a smartphone for weeks

Quick, what's your No. 1 qualm about smartphones? Chances are, you said "battery life." Most smartphones today, even high-end ones, barely last a day of heavy use.

Apple is looking to fix that problem with a new patent, filed in March and published Sept. 3, that describes a "fuel cell system for a portable computing device."

The patent envisions a system consisting of a fuel cell, which converts fuel to electrical power, an interface to the portable computing device (e.g. smartphone) and a controller that monitors the state of the fuel cell and controls it.

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An image from an Apple patent filing, describing a fuel cell system for powering portable computing devices - image: Freepatentsonline

As far as patent applications go, this one seems pretty broad; for example, it mentions many possible fuel sources, ranging from lithium hydride and water mix to liquid hydrogen.

The patent posits that a hydrogen fuel cell could "enable continued operation of portable electronic devices for days or even weeks without refueling" (wouldn't that be dreamy), but also immediately mentions that it's "extremely challenging" to design portable, cost-effective hydrogen fuel cell systems.

As always, a patent filing does not mean we'll soon (or ever) see a product using the technology. A duo of very similar patents, also filed by Apple, were published in 2011, and they definitely haven't resulted in any real world products yet. At least the new filing shows Apple is still interested in the technology, rekindling hopes of a fuel cell iPhone in the future. - Mashable

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