Researchers Tout Electricity Storage Tech That Could Recharge Devices In Minutes 31
coondoggie writes "Vanderbilt University researchers say they have come up with a way to store electricity on a silicon-based supercapacitor that would let mobile phones recharge in seconds and let them continue to operate for weeks without recharging. The Vanderbilt team said they used porous silicon -- a material with a controllable and well-defined nanostructure made by electrochemically etching the surface of a silicon wafer. This let them create surfaces with optimal nanostructures for supercapacitor electrodes, but it left them with a major problem: Silicon is generally considered unsuitable for use in supercapacitors because it reacts readily with some of chemicals in the electrolytes that provide the ions that store the electrical charge, the researchers said."
Re: (Score:2)
Same page dupe.
I mean, scroll down for god sake!
Seriously, Slashdot? (Score:2)
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Please pull this story - it has already been posted today!
That was yesterday....
Re:Seriously, Slashdot? (Score:5, Funny)
Be a little patient.
It's taking a while to teach editing to the dolphins with their new Minority Report-style interfaces.
Also, between the data caps and the slow GPU progress, there's almost no band left. And the NSA is using most of that to monitor Chancellor Merkel's mobile phone, which, coincidentally, is powered by a silicon supercapacitor.
Re:Seriously, Slashdot? (Score:5, Funny)
It's taking a while to teach editing to the dolphins with their new Minority Report-style interfaces.
The twin inverted post repeater (TWIPR) approach uses the same technique as dolphins do to capture page views. Like dolphins, Slashdot editors post two times in quick succession to cancel out background noise. This finding, as demonstrated by this duplicate post, explains how Slashdot editors post two times in quick succession to cancel out background noise.
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Duplodocus (Score:5, Funny)
Duplodocus [slashdot.org]
Researchers Tout Rapid Dup Technology (Score:5, Funny)
Minimizes intervals between duplicate stories to only 6.5 hours.
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Yeah. You laugh now, but one day they'll manage to reduce the interval to minus 6.5h and publish the dup hours before the fact has even happened.
(btw: That's what we need from Minority Report; not the HUD)
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Old news (Score:1)
My phone can already charge in (~10000) seconds and last for (.25) weeks.
Editors clearly don't read slashdot themselves (Score:2)
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If they don't read the slashdot stories, then they don't read the posts either. We're doomed.
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Again! (Score:5, Funny)
It rubs the lotion on its skin, or else it gets the story again!
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It rubs the lotion on its skin, or else it gets the story again!
It store electricity on a silicon-based supercapacitor...
*CRIES OF DESPERATION*...
It store electricity on a silicon-based supercapacitor...
*CRIES OF DESPERATION*...
PUT THE FUCKING ELECTRICITY ON A SILICON-BASED SUPERCAPACITOR!!!!!
*HORRIBLE, HORRIBLE SCREAMS AS THE VICTIM REALIZES THIS HAS ALL HAPPENED BEFORE...*
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Second Post! (Score:5, Funny)
Second Post!
Electrolytes (Score:2)
Brawndo! It's got electrolytes.
Dejadup (Score:2)
'nuff said
Comment removed (Score:3)
Weeks without charging? I'd be happy with days (Score:2)
but maybe I am the only one... I must be plugging my phone wrong
Nope. (Score:2)
Here's a hint. Any time you see a press release from a company or University PR department, ignore it. It's usually much worse than no information at all.
In this case they MAY have figured out how to lay down a supercapacitor on the back side of a silicon chip. Big whoop. You're talking about a few Farads at a few volts at most. Not a lot of energy storage possible there, certainly not enough to run a cell phone for more than a few seconds.
Story is BS - and so is the dupe (Score:2)
Clicked to the linked article, clicked from there to the original paper.
Figure 4 clearly shows a peak energy density of about 5 Wh/kg. Existing production super caps are about 5 Wh/kg (see Maxwell or Wiki for many examples), so the "significant" improvements being claimed are not in the data.
Claims in the original article, copied here without examination, include making cell phones last for weeks. Li-ion batteries in cell phones have about 210 Wh/kg, so if your phone lasts you a day now, using this tech wou
iGrenade (Score:1)
Great :(
The next advancement from a phone that catch on fire from overheating Lithium battery,
is a phone, with super duper silicon caps, that will experience uncontrolled disassembly.
IN.YOUR.POCKET