Electrolytic manganese dioxide, process for preparing the same, and manganese dry cell
Patent 5866278 Issued on February 2, 1999. Estimated Expiration Date: 
December 4, 2016. 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.
December 4, 2016. 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 ReferencesProcess for producing hydrocarbons Manganese dioxide for lithium batteries Patent #: 5698176 InventorsAssigneeApplicationNo. 758823 filed on 12/04/1996US Classes:429/224, Manganese component is active material205/539, Manganese containing423/605Group VIIB metal (Mn, Tc, or Re)ExaminersPrimary: Gorgos, KathrynAssistant: Leader, William T. Attorney, Agent or FirmInternational ClassesC01G 045/02H01M 004/50 C25B 001/00 Foreign Application Priority Data1996-01-08 JPAbstractAn electrolytic manganese dioxide having a composition of MnOx, wherein X is 1.90 to 1.96, an adhesive moisture content of not less than 1.5% by weight as measured according to the procedure specified in JIS, and a content of bound water, eliminative in the temperature range of 120° to 400° C., of not less than 3.0% by weight as measured by gravimetry, a process for preparing the same, and a manganese dry cell comprising a cathode mix comprised of a mixing of the electrolytic manganese dioxide with a conductive acetylene black, preferably a conductive acetylene black having a BET specific surface area of 70 to 2.50 m2 /g, and an electrolyte composed mainly of zinc chloride and/or ammonium chloride. In the process of preparing the electrolytic manganese dioxide, after electrolysis and during or after neutralization, the manganese dioxide is heated in an aqueous solution at 50° to 100° C. for 12 to 48 hours in the presence of an alkaline ammonium compound.Other References
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