New nanotechnology enables increased battery energy density
Nano-materials seem to be one of the keys to improving the capability of batteries to absorb, store and discharge energy. AltairNano and A123 systems are both using the tiny particles in the construction of electrodes for their batteries. Another newcomer is now following the same path. Nanoexa has a subsidiary in South Korea called Decktron that is making lithium ion batteries. The company is claiming that Nanoexa's new nanocrystalline material that is being used to construct the positive battery electrodes allows them to achieve an energy density of 3kW/kg. If Decktron can achieve this level of energy density and match some of the longevity claims of AltairNano it could be a real breakthrough.
[Source: RF Design]
Reader Comments (Page 1 of 1)
Interesting 3:36PM (2/07/2008)
Awesoome !!!!!!! Who Knew a Batacitor existed/
http://www.youtube.com/watch?v=PFcylXFGTgk
When will this be available to the general Public???
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Tachy 3:21PM (4/29/2007)
There is no word about _energy_-density (kWh/kg), only about power-density (kW/kg) !
Rising the amount of kWh/kg to increase the range is even more important as power, which is high enough in todays' batteries.
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Tony Belding 3:33PM (4/29/2007)
Doesn't make sense. . . 3 kW/kg isn't a measure of energy density, it's a measure of power density -- impressive, but something that's not a big problem for existing li-ion cells. Maybe they meant 3 kW-hr/kg? But if that were so, it would be an unbelievable figure, which I think is far beyond the theoretical limits for li-ion chemistry.
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Tachy 5:27PM (4/29/2007)
@tony:
Standard LiIon-cells as in the Tesla Roadster have 0,12 kWh/kg, the altairnano/A123Systems-LiIon-Cells have 0,10 kWh/kg.
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Matt 6:30PM (4/29/2007)
Here is some more information I found about Nanoexa's batteries.
"Nanoexa projects that its batteries will provide 50% more power density (i.e., greater acceleration and torque)and 50% higher energy density (i.e., longer time between charges) than existing Li-ion cells"
http://www.nanoexa.com/pdf/Power_Electronics_Technology.pdf
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frank78 7:07PM (4/29/2007)
Good find Matt. A 50% increase in energy density would be pretty damn impressive. Sounds like an electric midsize sedan with a 350 mile range is now realistic.
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Howard Lee Harkness 2:12PM (4/30/2007)
Yet another competing company in the battery tech field can't possibly hurt. However, the referenced materials in the article are a bit long on hype and short on usable information.
There was one real concrete item: The proposed introduction of a consumer electronics format battery in less than two months. Assuming they actually deliver something close to the predicted time, we'll actually get a chance to see how well it does in the Real World. I'll be watching for it. If I can get one of their batteries for my laptop, I might even buy one myself.
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