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Hitachi promises to double lifespan of li-ion batteries

Posted on Wednesday, April 07 2010 @ 22:02:07 CEST by

Hitachi has reportedly developed developed a new li-ion battery cathode that promises a longevity twice as high as current batteries:
Of course, Li-ion batteries also have a downside: as laptop and cell phone users have no doubt found out, they too become disposable before long. One reason why is that acid in the electrolyte can corrode the cathode material -- and now, Hitachi claims it's found a way to strengthen its own. Using an undisclosed combination of elements to replace some of the manganese used in the company's cathodes, Hitachi claims they can strengthen their crystalline configuration to resist acid, reduce cost, and best of all, double the usable life of a lithium-ion cell to about ten years.
More info at Engadget.



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