Patented cathode materials result in longer-lasting, safer batteries for
cars, phones, computers
ARGONNE, Ill., March 13 /PRNewswire/ -- The U.S. Department of Energy's (DOE) Argonne National Laboratory and Toda Kogyo Corp. (Toda) of Japan have reached a world-wide licensing agreement for the commercial production and sales of Argonne's patented composite cathode materials for lithium-ion batteries, which result in longer-lasting, safer batteries for hybrid-electric vehicles, cell phones, laptop computers and other applications.
"Our agreement with Toda Kogyo is an important step toward bringing to market key advanced lithium-ion battery technologies that are being developed here at Argonne with funding from the U.S. Department of Energy," Gary Henriksen, Manager of the Electrochemical Energy Storage Department at Argonne, said. "The technologies being licensed will enhance the performance, life and inherent safety of lithium-ion cells compared to those that employ the cobalt-based cathode technology that has dominated the market since the introduction of lithium-ion batteries in 1990."
The family of structurally integrated composite cathode materials being licensed utilizes a new combination of lithium/manganese mixed metal oxides in a revolutionary materials-design approach to extend the time between charges, increase calendar life and improve lithium-ion cell safety.
The new cathode materials are comprised of a composite matrix using an
inherently stable inactive lithium-metal oxide that is integrated with a
highly active form of another lithium-metal oxide component. This composite
allows for greater levels of lithium to be utilized, while reducing
oxygen-induced side reactions at the electrode surface that limit cell life
and safety. The enhanced stability of these materials allows the system to
be charged to higher voltages, leading to a significantly higher energy
storage capacity than currently ava
|SOURCE Argonne National Laboratory|
Copyright©2008 PR Newswire.
All rights reserved