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Nickel-iron battery with a chemically pre-formed (CPF) iron negative electrode

  • US 10,637,041 B2
  • Filed: 08/30/2018
  • Issued: 04/28/2020
  • Est. Priority Date: 09/05/2013
  • Status: Active Grant
First Claim
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1. A process for preparing a Ni—

  • Fe battery, comprising;

    i) fabricating an electrode comprising an iron active material, polyvinyl alcohol binder and sulfur,ii) treating the electrode surface with an oxidant to thereby create an oxidized iron surface prior to the battery being subjected to a charge-discharge cycle; and

    iii) combining the electrode with the oxidized surface with a nickel electrode, an alkaline electrolyte and a separator to construct a Ni—

    Fe battery.

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