Breakthrough battery can charge up in seconds
03-11-2009, 05:21 PM
#1
Breakthrough battery can charge up in seconds
http://technology.timesonline.co.uk/...cle5891194.ece
The advance allows lithium-ion batteries, the standard variety used in consumer electronics and cells for electric or hybrid vehicles, both to charge and discharge stored energy more quickly than at present.
The researchers, from the Massachusetts Institute of Technology, have already made a small prototype cell that charges fully in 10 to 20 seconds, compared with six minutes for cells made in the standard way.
The advance allows lithium-ion batteries, the standard variety used in consumer electronics and cells for electric or hybrid vehicles, both to charge and discharge stored energy more quickly than at present.
The researchers, from the Massachusetts Institute of Technology, have already made a small prototype cell that charges fully in 10 to 20 seconds, compared with six minutes for cells made in the standard way.
03-11-2009, 09:10 PM
#2
http://technology.timesonline.co.uk/...cle5891194.ece
The advance allows lithium-ion batteries, the standard variety used in consumer electronics and cells for electric or hybrid vehicles, both to charge and discharge stored energy more quickly than at present.
The researchers, from the Massachusetts Institute of Technology, have already made a small prototype cell that charges fully in 10 to 20 seconds, compared with six minutes for cells made in the standard way.
The advance allows lithium-ion batteries, the standard variety used in consumer electronics and cells for electric or hybrid vehicles, both to charge and discharge stored energy more quickly than at present.
The researchers, from the Massachusetts Institute of Technology, have already made a small prototype cell that charges fully in 10 to 20 seconds, compared with six minutes for cells made in the standard way.
Great stuff indeed!
03-11-2009, 09:58 PM
#3
03-11-2009, 10:14 PM
#4
Judging by the terms used in the article, this technology will improve LiFePO4 batteries, not LiPO. Only time will tell if this advancement will help other battery types.
A123 is the largest producer of LiFe cells and right now they can take a 5C charge with minimal issues. If the technology allows batteries to take 10~20C charge rates, than yes it will impact the EV market greatly. The only problem is that LiFe cells have about 1/2 the power density of LiPO cells meaning your 5000mah pack would be 2500mah in LiFe.
The other thing not mentioned would be the reduced IR of the cells. This would make the current 30C A123 capible of maybe 100C discharge rates. This new tech would also remove the need for "Super Capacitors" in some applications of powerback up or high energy storage like used in rail guns, lazers or electric drag racers (Ezilla). LiFe batteries are very safe and do not catch fire but at the cost of storage capacity and voltage potential.
A123 is the largest producer of LiFe cells and right now they can take a 5C charge with minimal issues. If the technology allows batteries to take 10~20C charge rates, than yes it will impact the EV market greatly. The only problem is that LiFe cells have about 1/2 the power density of LiPO cells meaning your 5000mah pack would be 2500mah in LiFe.
The other thing not mentioned would be the reduced IR of the cells. This would make the current 30C A123 capible of maybe 100C discharge rates. This new tech would also remove the need for "Super Capacitors" in some applications of powerback up or high energy storage like used in rail guns, lazers or electric drag racers (Ezilla). LiFe batteries are very safe and do not catch fire but at the cost of storage capacity and voltage potential.
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