General Motors and the US Department of Energy’s Argonne National Laboratory have signed a worldwide licensing agreement to use Argonne’s patented composite cathode material to make advanced lithium-ion batteries that last longer between charges and can charge at higher voltages.
The cathode material licensed to GM is one of a number of Li-ion battery inventions and patents developed at Argonne with DOE funding. Use of the cathode material will yield advanced batteries that are high-performing, long-lasting and safe when compared to the existing technology that has dominated the market for nearly two decades.
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Compared with currently available materials, Argonne’s composite cathode material has a unique combination of lithium- and manganese-rich mixed-metal oxides in a stable materials-design approach that will extend the operating time between charges and increase the calendar life of batteries, improve the inherent safety of lithium-ion cells and allow charging at higher voltages, which leads to a substantially higher energy storage capacity.
Argonne also said it had licensed its cathode technology to LG Chem for use in battery cells used in the Chevrolet Volt.
