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Sony launches high-power, long-life Lithium Ion secondary batter
Posted on 17-Aug-2009 08:39. | Tags Filed under: News.

Sony launches high-power, long-life Lithium Ion secondary batter
Sony Corporation today announced that it has launched a new type of lithium ion secondary battery that combines high-power and long-life performance, using olivine-type lithium iron phosphate as the cathode material. Shipment commenced in June 2009.

The company says the Olivine-type lithium iron phosphate used in this new battery is extremely suited for use as a cathode material due to its robust crystal structure and stable performance, even at high temperatures.

By combining this new cathode material with Sony's proprietary particle design technology that minimizes electrical resistance to deliver high power output, and also leveraging the cell structure design technology Sony accrued developing its current "Fortelion series" lithium ion secondary battery line-up, Sony has realized a high power density of 1800W/kg and extended life span of approximately 2,000 charge-discharge cycles.

The product offers long-life, with more than 80% capacity retention after 2,000 charge-discharge cycles. This new battery delivers an extended life-span of over four-times existing secondary lithium ion batteries used in conventional electronic devices due to the olivine-type lithium iron phosphate's robust crystal structure, and Sony's proprietary particle design technology. Its enhanced durability makes this new battery ideal for use in a wide range of mobile electronic devices.

This new battery can be charged to 99% of its full capacity in 30 minutes, which represents approximately half the charge time of Sony's current lithium ion battery line-up , which mainly use cobalt oxide based cathodes.

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