Sony Develops New High Power Rechargeable Battery

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

This new battery delivers an extended life-span of over four-times existing secondary lithium ion batteries used in conventional electronic devices. This new battery can also 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.

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 says that it has realized a high power density of 1800W/kg and extended life span of approximately 2,000 charge-discharge cycles.

Furthermore, with this new battery able to charge rapidly, in addition to providing a stable discharge of voltage, it will first be supplied for use in motor driven devices such as power tools, after which its application will be expanded to a wide range of other mobile electronic devices.

Posted to the site on 19th August 2009