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Iron phosphate  (Source: MIT)
The new battery isn't ready for commercial development, but it shows great promise

A new battery material created by researchers from the Massachusetts Institute of Technology (MIT) could lead to much faster recharge times for batteries.

MIT professor Gerbrand Ceder and researcher Byoungwoo Kang said the material can discharge energy and recharge nearly 100 times faster than batteries currently used in mobile phones.  Lithium-ion batteries are widely used in laptops as well, and could allow longer battery life and faster recharge time if a user is away from a power source for long durations of time.

"The ability to charge and discharge batteries in a matter of seconds rather than hours may open up new technological applications and induce lifestyle changes," Ceder and Kang sad in the latest edition of Nature.

The duo created a small battery that normally takes six minutes to charge, but used their new traffic flow to recharge the same battery in just 10 to 20 seconds.

It was widely believed the ions and electrons inside the battery moved too slowly, but the researchers noticed that wasn't the case.  They focused on how ions enter nano-scale tunnels aimed at moving electrons around the battery, and eventually created a lithium phosphate coating that helps push ions to the nano-scale tunnels.

Rechargeable lithium batteries used today have the ability to store high amounts of energy, but don't normally release that power, so they discharge very slowly.    

The battery has been supported with federal research money, and two companies have already licensed the technology, MIT announced.  It'd be possible to start mass producing the batteries in two to three years, the MIT researchers said. 



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RE: dangerous?
By Black69ta on 3/14/2009 12:43:28 PM , Rating: 4
First Law does hold up even in terms on Fission and or Fusion.
Think of it this way Nuclear Bonds are immensely strong, so when you fissile an atom (or split it) you release the energy that was required to hold it together. But one atom isn't split at a time, it is a function of millions and billions of atoms at a time hence the tremendous amounts of energy released.

Fusion is the opposite, Deuterium and Tritium both contain a set amount energy to bond them into atoms. When fused they form an ordinary Helium atom. Helium requires less nuclear bonding then Deuterium and Tritium combined so the excess energy is released. There is no creation just conversion. The "First Law of Thermodynamics" is a law because there are no exceptions.

If a star like our sun produced energy instead of just converting the mass is contains, there would be no Supernovas or Black Holes or stars that just burn out. They burn out out because the mass of fuel they contains runs out and they can no longer support fusion.

Mass is not the same a energy however is is equivalent to energy related by the formula E=Mc^2, at least least until someone can prove Einstein wrong. Mass and energy can be thought of as the same in the way that water and Ice can be thought of as the same while a cubic meter of water doesn't freeze into a cubic meter of ice, the ratio is constant, much the same as the ratio of mass to energy.


RE: dangerous?
By MrPoletski on 3/16/2009 7:13:06 AM , Rating: 2
You sir, are correct.

Mass is another form of energy, but energy is not another form of mass. =)


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