An Investigation of the Rechargeability of Certain Modified Forms of MnO2

Abstract

The modified form of MnO2 prepared through doping with bismuth or lead possesses rechargeable properties. The work performed under this project was to investigate these properties. The bismuth modified MnO2 (designated as MnO2) was prepared by coprecipitation of hydroxides from the aqueous solutions of nitrates of Mn and Bi and subsequent oxidation of the hydroxides to the MnO2. Preliminary investigations of the Zn-MnO2 system in the presence of selected membranes were aimed at determining ways to prevent migration of the soluble zincate anion to the MnO2 electrode. Selected membranes and additives were tested. An improvement in the cyclability of the MnO2 electrode was achieved under certain circumstances. Extensive testings of the Zn-MnO2 systems are needed. Manganese dioxide Zinc; Bismuth; Lead.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1988
Accession Number
ADA199885

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  • John O. Brockris

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