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A new type of lithium-ion battery that features a 3-D interior structure is able to recharge in just a few minutes, can be discharged over twice as many times as traditional lithium-ion batteries and is thinner and lighter than existing versions -- essentially the dream battery for electric cars.
The new battery prototype was presented at this week's national meeting of the American Chemical Society. Conventional lithium-ion batteries consist of electrodes stacked in thin layers, which creates many of its problems like slow charging and limited discharging and a tendency to overheat.
The new battery reconfigures this arrangement by using copper antimonide nanowires arranged into a tightly-packed 3-D structure similar to bristles on a hair brush. The nanowires have more surface area and can store twice as many lithium ions and they're more stable and heat resistant than the graphite electrodes used in existing batteries. The result is a battery that recharges in 12 minutes instead of two hours and has double the lifespan.
The current prototype is the size of a cell phone battery, but the creators hope to scale up the technology to be used in other gadgets like laptops and, eventually, electric cars.
via Physorg
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written by Barrington John Prince, April 01, 2011
Wars do however bring out the survival instinct in us and during wars technological advances happen in the order of magnitude quicker than they do when left to market forces. So governments around the world and the United Nations should put such things as battery development on a WAR FOOTING.
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written by Geffen, April 02, 2011
Why can't these so called 'technologists' develop something which is safe?
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written by Timetrvlr, April 04, 2011
There is no longer any danger of an oil spill in the Gulf of Mexico either. I don't believe that whopper floated by the Oil Industry. Ask the dead dolphins and other sea life how safe oil extraction is. The oil that presently runs in your automobile. I'm all for new technology that has the power to remove us all from our total dependance on oil. If the new technology proves to be hazardous, then scientific effort will find an even better and safer solution.
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written by T. Maher II, April 06, 2011
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This could be a real game-changer in winning over some converts to EV's or PHEV's, who's main concern is long charge-time (and not necessarily off-put by high initial costs...)