OT: BATTERY GAME CHANGER, Dramatic breakthrough
If true there is a new battery technology that has the clear potential to change the world almost overnight.
New Battery Technology makes lithium-ion batteries last 20 years
By admin, February 4, 2010 9:11 pm
Japanese Eamex researchers have discovered a technique that could dramatically extend the lifespan of lithium-ion batteries. The new approach keeps the tin inside the battery intact for much longer despite the strain caused by charging and recharging. By absorbing much of the stress through a new alloy in the tin-coated resin, the tin and the electrode structure are more stable and could last for as long as 20 years.
The figure is based on an assumption of about 10,000 complete recharges, or about 10 times more use many batteries today, including those for notebooks. Apple estimates that a MacBook or MacBook Pro battery can withstand about 1,000 cycles over about 5 years of constant use. Regular notebook batteries are estimated to last about 300 cycles.
Eamex plans to ship a battery with about 10,000W of power per kilogram (4,545W per pound) by the end of 2010 and expects the most use to come for vehicles like electric cars and scooters, where the need for a long-lasting battery is the most important. Such technology can scale down to smaller devices, however, and should be useful for storing energy from a home’s solar power and could reach portable devices like notebooks.
http://www.batterycentury.com/news/2...last-20-years/This is incredible even if they don't completely meet the claims. 10,000 watts per kilo is double the energy density of gasoline per pound. 10,000 full charges means that for most products batteries will never need to be replaced. Virtually any device that now requires a cord to operate becomes a viable cordless tool or appliance. It will even make portable electric heaters practical.Do you know how often we hear about promising new battery technologies every year? Over 4 million times. That's what it feels like, anyway, even if we're way off in our estimation. But here's another number: One. That's how many battery breakthroughs we expect to materialize in an actual product in 2010.
The technology we're referring to comes from a Japanese company called Eamex, who says it has discovered a way to increase the life of high-capacity lithium-ion batteries. We tend to give this one a bit more credibility, if only because Eamex isn't talking about a theoretical tech that could eventually lead to the demise of lithium-ion.
What Eamex has done is figure out a way to stabilize the electrodes and prevent the deterioration of tin. Why's this important? Because it means the batteries can withstand a lot more charge and discharge cycles. We're talking about over 10,000 cycles with a shelf life of 20 years. By comparison, Apple says a MacBook or MacBook Pro battery can withstand about 1,000 cycles over about 5 years of constant use.
Unlike other battery technologies, you don't have to wait a decade for this one to come to market. Eamex says it will ship a battery with about 10,000W of power per kilogram (suitable for electric cars and scooters) by the end of 2010.
http://www.maximumpc.com/article/new..._electric_cars
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Originally Posted by Evan
