Sony announces the new line-up of lithium ion batteries, with industry's highest level of energy density, responding to the needs for high capacity and large current in secondary batteries for mobile products. Shipment will start from December 2004 onwards. Accomplishment of higher capacities in secondary batteries continue to be required from the market, due to higher performance and enhanced features in mobile products such as note PCs, digital video cameras and mobile phones. At Sony, commercialization of the world's first high power density, small size, light weight and long life lithium ion battery was announced in 1991 and, in 1999, lithium ion polymer battery with flexibility in shape and enhanced safety was announced.
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