Manganese dioxide-based material
Patent 5658693 Issued on August 19, 1997. Estimated Expiration Date: 
February 17, 2015. 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.
February 17, 2015. 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 ReferencesManganese dioxide MnO2 Derived from LiMn2 O4 Manganese dioxide electrode for lithium batteries Manganese dioxide and process for the production thereof Patent #: 4476104 InventorsAssigneeApplicationNo. 391072 filed on 02/17/1995US Classes:429/224, Manganese component is active material423/599, Manganese (e.g., manganate, etc.)423/641Alkali metal (Li, Na, K, Rb, or Cs)ExaminersPrimary: Nuzzolillo, M.Attorney, Agent or FirmForeign Patent References
International ClassH01M 004/50Foreign Application Priority Data1991-06-17 ZAAbstractThe invention provides a manganese dioxide-based material which is highly crystalline and chemically prepared. The material has a predominantly ramsdellite structure, and has a powder X-ray diffraction pattern (CuK radiation) in which the ratio of a [110] peak height to a [201] peak height is at least 0,6:1,0. The material can be used as an electrode material in an electrochemical cell 10.Other References
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