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Lithium Ion

The lithium ion

The actions of lithium – The battery cell lithium-ion Gets Supercharged
June 22,
Posted by admin in Articles 333 Lithium Comments

A new variant of the lithium-ion family has a type of energy storage material that loading and unloading great speed. This discovery could provide a boost to plug-in hybrids and electric vehicles and possibly allow phone batteries laptop to retrieve a full load in seconds rather than hours.

Scientists at the Massachusetts Institute of Technology (MIT) report in the journal Nature that they have devised a form of lithium Ion Battery to compress and leave about 100 times faster than it has been demonstrated. "We mainly contained large called lithium iron phosphate [LiFePO4] and try to improve even more," says study author Byoungwoo Kang, a graduate student in MIT's Department of Materials Science and Engineering.

The rechargeable lithium-ion batteries are smaller and light, however, can store large amounts of energy, making them ideal for everyday use in electronic devices such as iPods and laptops. This valuable property, known as energy density, may be extended for hybrid cars and all-electric Roadster Tesla Motors built on the basis of the lithium-ion battery (6831 individual cells) and even taken power supply Chevy Volt is about to hit the market.

One drawback: the lithium-ion does not exempt his office carried by lithium ions and electrons, hence the name fast food, compared to other types of storage batteries. As a huge audience that only few doors, is a large number of customers (Li-ion) and is an endless subject. This explains why some electric vehicles (the $ 109,000 Animated Tesla Roadster, with its massive battery not included) can reach high speeds, but suffer from poor acceleration from the propulsive force triggered by the rapid succession of explosions in an internal combustion engine Mini. The exchange of lithium ions also means slow ion recharge slowly enough to think about how long you have to recharge your phone in small cells.
In an attempt to accelerate rhythm, MIT researchers coated lithium iron phosphate material with a conductor of ions, which in this case was a layer of lithium phosphate resembling glass. Indeed, conducting ions travel much faster loading of the storage means, a battery prototype, scientists have built a fully charged after 10 to 20 seconds.

The results have impressed some experts from the battery. "I think this work is a very exciting development with obvious commercial applications, "says Yi Cui, assistant professor of materials science and engineering at Stanford University.

Two companies have already licensed the technology, according to Kang. Researchers do not know how much will these batteries cost when it was released, but Kang says it should be a reasonable price, given that should be relatively inexpensive to produce.

The study notes that houses can not draw enough power from the power to quickly load the battery of a hybrid that contains new material, so small batteries for appliances and power tools can not should have to take. But plug-in future bus stations (stations sale of electricity instead of gasoline) more pulling force may be the case of vehicles, "said Kang.

http://www.lithium-stocks.net/1214/lithium-stocks-lithiumion-battery-cell-supercharged/ About the Author

Lithium Stocks – The Lithium-Ion Battery Cell Gets Supercharged

JUN 22ND

Posted by admin in Lithium Articles 333 comments

A new twist on the familiar lithium ion battery has yielded a type of power-storing material that charges and discharges at lightning speed. The finding could offer a boost for plug-in hybrid and electric vehicles and possibly allow cell phone batteries to regain a full charge in seconds rather than hours.

Scientists at the Massachusetts Institute of Technology (M.I.T.) report in Nature today that they devised a way for lithium ions in a battery to zip in and out about 100 times faster than previously demonstrated. “We took a basically great material called lithium iron phosphate [LiFePO4] and we tried to improve it further,” says study author Byoungwoo Kang, a graduate student in M.I.T.’s Department of Materials Science and Engineering.

Rechargeable lithium ion batteries are small and light, yet can store copious amounts of energy, making them ideal for use in everyday electronic devices such as iPods and laptops. This valuable property, called energy density, can be scaled up for hybrid cars as well as for the all-electric Roadster built by Tesla Motors that relies on lithium ion batteries (6,831 individual cells) and the similarly powered Chevy Volt plug-in electric, about to hit the market.

One downside: lithium ion batteries do not dispense their charge—carried by lithium ions and electrons, hence the power source’s name—very quickly compared with some other types of storage batteries. Like a huge auditorium that only has a few doors, getting a large volume of patrons (lithium ions) in and out is a drawn-out affair. This phenomenon explains why some electric vehicles (the rip-roaring $109,000 Tesla Roadster with its massive battery pack excluded) can reach high speeds, but they suffer from poor acceleration compared with the propulsive force unleashed by the rapid succession of mini explosions in an internal combustion engine. The slow exchange of ions also means lithium ion batteries recharge slowly—just think of how long you have to charge your tiny cell phone.

In an attempt to pick up the pace, the M.I.T. researchers coated the lithium iron phosphate material with an ion conductor, which in this case was a layer of glasslike lithium phosphate. Sure enough, the charge-carrying ions traveled much faster from their storage medium; a prototype battery the scientists built completely charged in about 10 to 20 seconds.

The results have impressed some battery experts. “I think this work is a really exciting breakthrough with clear commercial applications,” says Yi Cui, an assistant professor of materials science and engineering at Stanford University.

Two companies have already licensed the technology, according to Kang. Researchers are not sure how much these batteries will cost when they hit the market, but Kang says they should be reasonably priced, given that it should be relatively cheap to produce them.

The study notes that residences cannot draw enough energy from the electrical grid to quickly charge a hybrid car’s battery containing the new material, though smaller batteries for gadgets and perhaps power tools should not have that catch. But future roadside plug-in stations (service stations selling electricity instead of gasoline) with greater power pull could do the trick for vehicles, Kang says.

http://www.lithium-stocks.net/1214/lithium-stocks-lithiumion-battery-cell-supercharged/

How it’s made Lithium Ion batteries