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Accelerated formation and increased performance in chemically pre-formed (CPF) iron negative electrodes

  • US 10,629,888 B2
  • Filed: 08/29/2018
  • Issued: 04/21/2020
  • Est. Priority Date: 09/05/2013
  • Status: Active Grant
First Claim
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1. A electrode which has not been subject to a charge-discharge cycle, comprising an iron active material, a polyvinyl alcohol binder and sulfur, which electrode is prepared by a process comprising:

  • i) fabricating an electrode comprising an iron active material, polyvinyl alcohol and sulfur, andii) treating the surface of the electrode with an oxidant to thereby create an oxidized surface prior to the electrode being subjected to a charge-discharge cycle.

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