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Method of manufacturing an iron electrode for alkaline accumulators

  • US 4,123,568 A
  • Filed: 06/01/1976
  • Issued: 10/31/1978
  • Est. Priority Date: 06/01/1976
  • Status: Expired due to Term
First Claim
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1. A method of manufacturing an electrode for an alkaline accumulator by applying on to a grid made of a steel band, a mass consisting essentially of a mixture of black iron ore concentrate, Fe3 O4, in the amount of 95 parts by weight, iron oxide, Fe2 O3, in the amount of 5 parts by weight, synthetic fibre in an amount of 0.1 to 0.2 parts by weight, FeS, in the amount of 1.05 to 1.25 parts by weight, aqueous nickel sulfate in the amount of 12.5 parts by weight, a surface active agent in the amount of 9 parts by weight, and adding an aqueous solution of polyvinyl alcohol in the amount of 2 parts by weight mixed with concentrated sulfuric acid in a weight ratio of 1 to 5 with respect to said polyvinyl alcohol, wherein said parts by weight refer to the total mass, rubbing the resulting activated mass into said grid and drying for 15 to 30 minutes at a temperature within the range of from 110°

  • to 180°

    C.

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