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    • Panasonic develops more capacious Li-ion laptop battery

    By Darren Murph | January 11, 2007

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    While the IEEE is “hard at work” revising the laptop battery standard so these explosive cells permanently become a thing of the past, Panasonic has developed a new rechargeable battery pack with increased capacity and energy density, hopefully working on previous heat issues as well. The prototype, which is being shown here at CES, reportedly boasts a “20- to 40-percent” increase in capacity by using “an alloy material for the negative electrode instead of a commonly used carbon material” such as graphite carbon. Additionally, energy density per volume is increased to 740 Wh/L, which is 40-percent higher than that of the company’s existing product. Notably, Panasonic claims that this newfangled Li-ion pack will tout a “heat-resistant layer made of insulating metal oxide,” which purportedly “ensures improved safety while maintaining a current capacity as high as 3.6 Ah.” As expected, there was no word on if (or when) this prototype would actually hit production, but the firm did state that it would like to commercialize it “within a few years” if everything progressed nicely.

     

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