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General Motors Co. and the US Department of Energy’s (DOE) Argonne National Laboratory (ANL) have reached a non-exclusive worldwide licensing agreement to use Argonne’s patented composite cathode material for advanced lithium-ion batteries. Argonne also licensed the cathode technology to LG Chem for use in battery cells. The GM license is specific to GM vehicles; the LG license allows the battery maker to sell to other OEMs as well and provide cells for GM.
Argonne’s patented xLi2MnO3·(1-x)LiMO2 (M= Mn, Ni, Co) “layered-layered†structures (earlier post) integrate an electrochemically inactive Li2MnO3 component with an electrochemically active LiMO2 component to provide improved structural and electrochemical stability at high potentials. The unique combination of lithium- and manganese-rich mixed-metal oxides in this stable materials-design approach extends the operating time between charges and increase the calendar life of batteries; improves the inherent safety of lithium-ion cells; and allows charging at higher cell voltages, which leads to a substantially higher energy storage capacity compared to current materials. The cathode material enables a 50—100% increase in gravimetric energy storage capacity over conventional cathode material, according to Argonne.
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Argonne’s patented xLi2MnO3·(1-x)LiMO2 (M= Mn, Ni, Co) “layered-layered†structures (earlier post) integrate an electrochemically inactive Li2MnO3 component with an electrochemically active LiMO2 component to provide improved structural and electrochemical stability at high potentials. The unique combination of lithium- and manganese-rich mixed-metal oxides in this stable materials-design approach extends the operating time between charges and increase the calendar life of batteries; improves the inherent safety of lithium-ion cells; and allows charging at higher cell voltages, which leads to a substantially higher energy storage capacity compared to current materials. The cathode material enables a 50—100% increase in gravimetric energy storage capacity over conventional cathode material, according to Argonne.
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