Rohm 5Wh hydrogen fuel cells power up smartphones, ready for the trash after one charge

Rohm 5Wh hydrogen fuel cells power up smartphones, ready for the trash after one charge

Rohm's hydrogen fuel cells are meant to power smartphones and other mobile devices, but unlike other juicing-up solutions, the cells are only good for one charge. Rohm says disposable fuel cells can be made smaller and lighter than their multi-use counterparts, and as the only byproduct is hydrogen, the company is touting the cells' eco-friendliness. The system generates electricity by using hydrogen that's created by the reaction of a metal material and water. While the device we saw here at CEATEC is a prototype, Rohm may offer its recharging system as both a smartphone case and a USB-attachable juicepack. Each offers 5Wh and can fully charge a handset once. There's also a 200W power generator, which certainly stretches the meaning of portable but can keep a laptop, LCD TV and a peripheral or two going for three to four hours. Rohm says its fuel cells will see a commercial release some time in 2013; for now you can get a sneak peek in our hands-on gallery below.

Zach Honig contributed to this report.

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Rohm 5Wh hydrogen fuel cells power up smartphones, ready for the trash after one charge originally appeared on Engadget on Tue, 02 Oct 2012 11:22:00 EDT. Please see our terms for use of feeds.

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MIT engineers develop glucose-based fuel cell to be used in neural implants

MIT engineers develop glucose-based fuel cell to be used in neural implants

We've seen fuel cells used in a variety of gadgets -- from cars to portable chargers -- and while medical devices aren't exactly at the top of the list, they're yet another application for these mini power sources. MIT engineers are turning to sugar to make fuel cells for powering brain implants. The scientists developed cells that use platinum to strip electrons from glucose molecules found in a patient's cerebrospinal fluid to create a small electric current. The fuel cells are fabricated on a silicon chip so they can interface with other circuits in a brain implant. The prototype can generate up to hundreds of micro watts, which is enough to power neural implants used to help paralyzed patients move their limbs. Mind you, this technology is years away from making it to market. The next step will be proving that the devices work in animals, which reminds us of one Ricky the rat, who survived a biofuel cell implant back in 2010.

MIT engineers develop glucose-based fuel cell to be used in neural implants originally appeared on Engadget on Wed, 13 Jun 2012 20:53:00 EDT. Please see our terms for use of feeds.

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Apple breaks ground on second solar farm for North Carolina data center

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Last February, Apple came clean about its efforts to clean up the environment, detailing intentions to make its Maiden, NC data facility a greener place. That site, already home to one solar farm, is now set to host a second 20 megawatt photovoltaic array spanning 100 acres, a one-two power punch that'll jointly generate 84 million kWh annually. Combined with the company's in-development biofuel cell plant, scheduled for opening later this year, that theoretic yield should hit the 124 million kWh mark -- an amount sufficient to power nearly 11,000 households -- providing 60 percent of the center's electric demands. Still, that's not enough to adequately keep operations afloat, so for that very necessary, leftover 40 percent, the house that Jobs built plans to purchase similar clean energy from outside local sources. When all is finally up and running smoothly, the southern facility will earn the distinction of "most environmentally sound data center ever built." Or, at least until another well-heeled competitor comes along to contest that title. Now that's a friendly competition we can get behind.

Apple breaks ground on second solar farm for North Carolina data center originally appeared on Engadget on Thu, 17 May 2012 17:26:00 EDT. Please see our terms for use of feeds.

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RIM continues its fuel cell streak, applies for two more patents

RIM continues its fuel cell streak, applies for two more patents

Looks like RIM is more interested in fuel cell technology than we thought: the BlackBerry maker has just applied for two closely related patents for including a fuel cell in an electronic device, one for the frame and one for the fuel tank itself. Although the primary aim of either patent is to show how to fit a fuel cell into the tight space of a mobile gadget, they do show a more rectangular and modern device chassis than the last patent we saw, which had more than a slight whiff of the classic BlackBerry about it. Neither application is necessarily a roadmap for the future, and they don't mean your next BlackBerry smartphone will need top-ups of lighter fluid or methanol every few weeks. Still, they hint that fuel cells are at least somewhat more than a passing fancy in Waterloo.

RIM continues its fuel cell streak, applies for two more patents originally appeared on Engadget on Thu, 10 May 2012 22:31:00 EDT. Please see our terms for use of feeds.

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Brookstone fuel cell USB charger to keep phones powered for two weeks, Engadget editors happy

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If there's a pain that Engadget writers know all too well, it's running out of battery life for a smartphone when we need it most. Say, at a major trade show. That's why we're enthused to hear of an upcoming fuel cell USB charger that Lilliputian Systems is developing for Brookstone. The lighter fluid-filled tank should provide up to 14 full charges for your phone before you need to spend a few dollars to top up, or two weeks if you power up daily -- we'd call that about two CES' worth in our lingo. Better still, using a solid oxide membrane on silicon not only makes a long fuel cell runtime possible, longer than we've seen for methanol, but makes the phone-sized pack safe to carry on the airliners we ride entirely too often. Pricing has yet to be sorted out, but with Brookstone stores likely to start carrying the fuel cell before the end of the year, it should be ready just in time for our next big trip to Las Vegas.

Brookstone fuel cell USB charger to keep phones powered for two weeks, Engadget editors happy originally appeared on Engadget on Wed, 09 May 2012 04:41:00 EDT. Please see our terms for use of feeds.

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