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The new materials reduce but do not eliminate expansion and contraction as the ions move in and out of the anode. As a result, the researchers are developing new battery designs that can absorb the changes in size. Obrovac says that these designs, along with the new electrode and electrolyte materials, should be ready for battery manufacturers to start incorporating into their products sometime next year.
Ted Miller, supervisor of advanced battery technology at Ford Motor, in Dearborn, MI, says that a move away from graphite to these kinds of anodes is, in addition to offering capacity gains, essential for coping with extremely cold conditions that they could be exposed to in vehicle applications. Under these conditions, charging a battery can cause lithium metal to build up, sometimes doing many months' worth of damage to the battery in the course of a few minutes. Moving away from graphite will prevent the reactions that lead to lithium-metal buildup, Miller says.
So far, only one alloy-based anode is being used commercially: a battery from Sony called Nexelium, which uses a tin-based anode. But this technology will start to appear more often, according to MIT materials scientist Yet-Ming Chiang. "It's a very logical direction" for battery companies to go in, he says.
A new chemistry could result in batteries that don't overheat—opening up new uses, including electric cars.
A startup says its solid polymer electrolytes will mean cheaper, more-reliable batteries.
Nanowire electrodes could improve the performance of electric vehicles.
Vulvox Nano/biotechnology Corproation has a lihium ion battery on the drawing board that will store more energy per pound that fuel cells.
3800 A/kg. See the webpage at
http://vulvoxnanobio.tripod.com
If you believed all the wild claims of major breakthroughs by Vulvox that Neil Farbstein has made, they would be the richest, most succesful company in the world.
Unfortunately it's all lies. Farbstein is trying to defraud potential investors.
Google him, it's quite a laugh.
Guest (Adam)
Altair has a battery technology that doesn't suffer from the expansion/contraction issue, safe, charges/discharges at a high rate, and works both in a cold or hot environment. I'm really surprised they haven't been in the news more often.
From what I have read, Altair seems to have the best new battery technology out there.
Yes, but it currently seems to have only 50% of the capacity of the typical lithium-ion battery.
Yes, but it currently seems to have only 50% of the capacity of the typical lithium-ion battery.
litihium ion batteries :disadvantages...
Lithium-ion batteries are ideal for mobile <a href="http://www.4engr.com/product">electronics</a> because they are lightweight, extremely energy-dense, and have a unique chemistry allowing them to be recharged.
..........
The chemical reaction that occurs in lithium-ion batteries is complicated. But the basic reaction involves coupling a lithium-carbon compound (which serves as the negative electrode) with cobalt oxide (which serves as the positive electrode), according to K.M. Abraham, a lithium battery consultant and visiting chemistry research professor at Northeastern University in Boston.
Normally this reaction is controlled and safe. But if uncontrolled, the lithium can stoke a huge reaction, he said.
....If a particle -- such as a speck of metal -- breaches the protective membrane during manufacturing, the particles worm through the opening and collide with the electrode, causing the device to short-circuit.........
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73 Comments
Hopeful direction
It would be great if there were some standard units of measurement we could use in articles to get everything reading Apples to Apples.
My questions for all new battery/energy storage systems would be:
Energy density Change
Power density change
Recharge time Change
Cycle life change
Production Cost change
Material Cost and supply change
I think this is a great thing though and congratulations on the break through.
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