Japan's Toda Kogyo to Commercialize Argonne Lithium-Ion Battery Tech
March 28, 2008 // Published as a news service by IHS
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The U.S. Department of Energy (DOE) Argonne National Laboratory (ANL) and Toda Kogyo Corp. of Japan reached a licensing agreement for the commercial production and sales of the ANL's composite cathode materials for lithium-ion batteries.
The family of structurally integrated composite cathode materials being licensed uses a new combination of lithium/manganese mixed metal oxides in a materials-design approach designed to extend the time between charges, increase calendar life and improve lithium-ion cell safety, according to the ANL.
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, said the ANL.
This composite allows for greater levels of lithium to be used while reducing oxygen-induced side reactions at the electrode surface that limit cell life and safety, claims the ANL.
The stability of these materials allows the system to be charged to higher voltages leading to a higher energy storage capacity than currently available materials through both the higher voltage and higher capacity per unit weight of active material, according to the ANL.
Toda Kogyo Corp. is a supplier of materials in the lithium ion and nickel-metal hydride battery markets.
Toda Advanced Materials Inc. in Canada produces cathode materials and their precursors for lithium-ion and nickel metal hydride batteries.
Source: U.S. Department of Energy (DOE) Energy Efficiency and Renewable Energy (EERE) Vehicle Technologies Program.