Use of hydroquinone to precondition manganese dioxide for use in

Details Use of hydroquinone to precondition manganese dioxide for use in Use of hydroquinone to precondition manganese dioxide for use in

1993-08-16

1995-04-11

Langel, Wayne

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C01G 4502

Patent

active

054055946

ABSTRACT:
A method of preconditioning manganese dioxide for use in a rechargeable alkaline electrochemical cell. The method includes the step of contacting unreduced manganese dioxide (e.g., electrolytic manganese dioxide) with a solution of hydroquinone in an environment having a pH greater than or equal to 5 that is essentially free of dissolved oxygen to partially reduce the unreduced manganese dioxide to manganese dioxide generally represented by the formula

REFERENCES:
patent: 5011752 (1991-04-01), Kordesch et al.
patent: 5156933 (1992-10-01), Yamaguchi et al.
patent: 5156934 (1992-10-01), Kainthia et al.
"Reduction and Dissolution of Manganese (III) and Manganese (IV) Oxides by Organics. l. Reaction with Hydroquinone," A. T. Stone and J. J. Morgan, Environ. Sci. Technol., vol. 18, No. 6 (Jan. 1984), pp. 450-456.

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