Lithium Ion Battery breakthrough promises 100fold boost in performance

22 Фев 2014 | Author: | Комментарии к записи Lithium Ion Battery breakthrough promises 100fold boost in performance отключены
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Lithium Ion Battery breakthrough 100-fold boost in performance

It may not like much, but this new material could enable EVs to in 5 minutes (Photo: Donna via MIT)

March 16, 2009 have developed a new advanced Ion battery that will mobile phone and laptop to be fully charged in seconds. car batteries may be charged in as little as minutes, removing one of the main to wider uptake of EVs. and wind power generation also benefit as better could be used to store energy.

MIT researchers Byoungwoo Kang Ceder have discovered a way to a lithium iron phosphate battery charge and discharge as fast as a supercapacitor. In a typical ion cell when a current is to charge the cell, lithium move away from the compound and are trapped at the anode medium. When the battery producing current, those travel back to the cathode and in so doing produce current

Speed of charging in typical cells is slowed by virtue of the that it takes time for the ion to move off the cathode material. techniques have been to increase that speed the nanoparticle doping strategy A123 Systems uses.

The scientists noted that iron phosphate forms a that creates small through which the lithium flow, but that although the seemed ideal it still some time for those to travel. The novel solution devised was to create a lithium glassy surface to coat tunnels. This glassy acts as a speedway that transports the lithium ions on and off the

Extremely high rates can be at a 200C rate (corresponding to an 18 total discharge) more 100mAh g can be achieved, and a capacity of g is obtained at a 400C rate (9 sec to discharge). Such discharge are two orders of magnitude larger those used in today’s ion batteries. Typical power for lithium ion battery materials are in the of 0.5 to 2 kW/kg. The specific power for the modified LiFePO4 (170kWkg at a rate and 90kWkg at a 200C is two orders of magnitude higher.

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At this point the researchers only tested the cells to 50 but have noted no degradation. have made a small cell which can be fully in 10 to 20 seconds, compared with six for cells made in the standard

This new ability to charge and lithium-ion batteries within blurs the distinction between and ultracapacitors. Besides being to charge one’s cellphone in this will have a impact on electric cars. If grid power was available, an car with a 15kWh battery be charged in five minutes.

This would require the of 180 kw of energy in that time

Two companies have already the technology one of which includes Systems. Because it involves a new to manufacturing lithium-ion battery rather than a new material, it be ready within two to three

Eliica (Electric Lithium-Ion Car)
Eliica (Electric Lithium-Ion Car)
Eliica (Electric Lithium-Ion Car)
Eliica (Electric Lithium-Ion Car)
Eliica (Electric Lithium-Ion Car)
Eliica (Electric Lithium-Ion Car)
Eliica (Electric Lithium-Ion Car)
Eliica (Electric Lithium-Ion Car)

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