Posted on 03/15/2003 10:51:51 AM PST by Rebelbase
Toshiba has unveiled a prototype fuel cell it hopes will become the power source for laptops in the future.
The fuel cell breaks down methanol to generate power and, Toshiba claims, will provide enough juice to run a laptop for about five hours.
To get the cell working, the alcohol fuel is provided in small 50cc cartridges.
Toshiba hopes to put the fuel cell on sale in early 2004.
Green energy
Fuel cells which use chemistry to generate electrical power by breaking down substances such as hydrogen are already being touted as a green power source for the future, especially for cars and other light vehicles.
Fuel cells for cars typically use hydrogen but, said Toshiba spokesman Yoichi Akashi, the company will be using methanol in its portable power source.
"Compared to hydrogen, methanol is much safer," he said.
Fuel cells for cars typically have a large tank that holds the fuel in the best concentration to generate power, said Mr Akashi.
Bolting a large tank on the side of a laptop was impractical so Toshiba developed a way to re-use the by-products of the fuel conversion process to maintain its fuel source in the right concentration.
When methanol is broken down it generates carbon dioxide and water. The water is used to dilute the concentrated methanol held in the fuel cell's cartridige and keep it at the right concentration.
This means that the laptop fuel cell requires a cartridge with a capacity of only 50cc, approximately one-tenth of the size it would need if it only stored methanol in the required 3-6% concentration.
The methanol cartridges are about the size of a computer mouse and the prototype of the fuel cell is larger - about the size of a house brick.
Refillable cartridges
Toshiba has developed a new material to shrink the stacks where the methanol is physically broken down. It has also developed sensors to monitor methanol concentration and liquid level as well as tiny liquid and air pumps to keep the fuel souce circulating.
Average power output is 12W and maximum is 20W. Unused energy is stored in the fuel cell.
The methanol cartridges will also be refillable, just like those used in gas cigarette lighters.
Mr Akashi said the commercial versions will be slightly larger than existing lithium-ion batteries and use the same power interfaces so they should work with older laptops.
Existing laptops should get about five hours of work time out of a fuel cell, said Mr Akashi. Laptops that use Intel's Centrino chipset that minimise power use should get up to 20% more time.
Future versions of the fuel cell should be able to power a laptop for about 10 hours. Toshiba is also working on fuel cells for PDAs and cellphones.
Please don't make me spit Coke all over my computer screen again. ;-)
MM
-LOL
To state it simply:
Drink ethanol in any quantity and you get drunk and have a hangover
Drink Methanol in any quantity and you die and have a funeral.
On the upside, methanol can be produced from coal, so by building a bunch of nukes for our basic power needs, and making our cars run on methanol, we can tell OPEC to kiss off
Also completely useless, as I bet they won't allow it on a plane.
Shhhh! Don't bring logic into this now.. Just applaud the new "green" power and be thankful it doesn't burn evil petrol for power. As that's a hate crime against mother earth.
'splain to me why all these new multi-hundred thousand euro (or dollar) supercars look like old Barracudas, or inexplicably like Datsun 2-doors. Of course, cup-holder technology has advanced remarkably since the '60s,and thanks to Fuel Injection and computers, the cars run very, very clean, even if they are un-diagnosable if problems develop, (talk to a BMW owner)
'splain to me why all these new multi-hundred thousand euro (or dollar) supercars look like old Barracudas, or inexplicably like Datsun 2-doors. Of course, cup-holder technology has advanced remarkably since the '60s,and thanks to Fuel Injection and computers, the cars run very, very clean, even if they are un-diagnosable if problems develop, (talk to a BMW owner)
No more batteries, just pour in some methane and go... You don't need a house with an outlet, you don't need a cigarette lighter jack or a generator. Little jug of methane and you're all set.
This is going to be cool when they start showing up used on EBAY or in the digikey catalog.
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