CATHODE COMPOSITION TO PREVENT OVER-DISCHARGE OF Li4Ti5O12 BASED LITHIUM ION BATTERY
AssigneeGM Global Technology Operations LLC
InventorsJianyong LIU, Qiang WU, Zhiqiang YU
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AssigneeGM Global Technology Operations LLC
InventorsJianyong LIU, Qiang WU, Zhiqiang YU
Estimating the term…
A lithium-ion battery is disclosed which uses lithium titanate as the anode material in the discharge of the cell(s) of the battery and a mixture of lithium manganese oxide (LMO) with a minor portion of a selected lithium-additional metal element-oxygen compound as the cathode material. The selected lithium compound is compatible with the lithium manganese oxide as a cathode material and has a lower and useful discharge potential than the LMO at the end of the discharge cycle of the cell. The electrode materials are used in combination with a non-aqueous solution of a lithium salt electrolyte. Damage to the electrode materials by over-discharge of the cell can be minimized by utilizing a predetermined portion of the selected lithium compound in mixture with lithium manganese oxide which provides additional capacity for self-discharge of the cell after it has reached a predetermined degree of discharge.
A lithium-ion battery comprising one or more cells of an anode, a cathode, and a non-aqueous lithium ion conducting electrolyte;
A lithium-ion battery comprising an anode, a cathode, and a non-aqueous lithium ion conducting electrolyte;
A lithium-ion battery comprising an anode, a cathode, and a non-aqueous lithium ion conducting electrolyte;
Dependencies are inferred from the claim text.