New battery technology, It could allow electric vehicles to recharge in two minutes
New battery technology, It could allow electric vehicles to recharge in two minutes
Tesla's Elon Musk may thinkthe future of electric vehicles will one day lie with ultra capacitors, but battery breakthroughs happen nearly every day, so there's reason to hold your bets for now. Case in point, a new article in theNature Nanotechnology journal details a new nanostructure-based cathode technology developed in Illinois University professor Paul Braun's lab. This new cathode allows extremely fast charging and discharging to the tune of 400C for lithium-ion and 1,000C for NiMH batteries (Dell xps m1330 Battery). For those of you who never got into an electric-powered hobby, the "C" simply means the charge (or discharge) rate where 1C equals a charge in one hour. 400C means a full charge in 1/400 of an hour (9 seconds!). Braun figures this translates to practical lithium-ion batteries that could be recharged to 90 percent in two minutes.
With modern lithium-ion batteries on the market today, the ability to charge and discharge rapidly often results in reduced capacity, meaning less range in an EV. This new cathode, however, supposedly does not affect the total capacity, leaving the battery with, as Paul Braun puts, "capacitor-like power with battery-like energy".
It's worth taking a step back at this point and realizing that even if batteries like this were available right now (Asus a32-f5 Battery), there is little to no infrastructure in place to allow for recharging at these high power levels. However, having a huge increase in discharge power-density would immediately allow hybrids and plug-ins to have a ton of power available from even a very small pack. This could give new meaning and life to the 'sport hybrid' segment, which we'd be all for.
The technique is to pack as many tiny spheres as possible into a specific space. Packed together, they form a latticework with gaps where the spheres don't fit together neatly.
Metal is then packed around the spheres and the whole mess is melted, leaving a scaffolding that looks more like a sponge. Gaps in the sponge are bored out to make them bigger, and packed with material that is very thin, so it can be charged quickly, but is packed so densely that the resulting mass holds a charge.
The group, led by a professor of materials science and engineering named Paul Braun, published its results in the March 20 online edition ofNature Nanotechnology.
No telling when it will turn up as an actual product. Given the price-per-pound of mobile electronics, though, my bet would be that it will show up first in phones or tablets.
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New battery technology, It could allow electric vehicles to recharge in two minutes Anaheim