Cathode active materials, methods of making same and electrochemical cells incorporating the same
Patent 4959282 Issued on September 25, 1990. Estimated Expiration Date: 
July 11, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 11, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMnO2 Derived from LiMn2 O4 Organic solvent-treated manganese dioxide-containing cathodes Lithium battery Alkali metal or alkaline earth metal compound additive for manganese dioxide-containing nonaqueous cells Patent #: 4465747 InventorsAssigneeApplicationNo. 217668 filed on 07/11/1988US Classes:429/224, Manganese component is active material423/49, Group VIIB metal (Mn, Tc, or Re)423/179.5, Lithium423/599, Manganese (e.g., manganate, etc.)423/605Group VIIB metal (Mn, Tc, or Re)ExaminersPrimary: Kalafut, StephenAttorney, Agent or FirmForeign Patent References
International ClassesH01M 004/50C01G 045/00 C01D 015/00 AbstractCathode-active material for electrochemial cells is prepared by reacting gamma phase MnO2 with Li. The molar ratio of Li to MnO2 is about 0.33 to about 0.43.Other References
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