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Electrically rechargeable battery

  • US 4,180,623 A
  • Filed: 07/28/1978
  • Issued: 12/25/1979
  • Est. Priority Date: 12/19/1977
  • Status: Expired due to Term
First Claim
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1. An electrically rechargeable battery consisting essentially of at least one inert cathode, at least one zinc anode, a circulating alkaline catholyte in which said cathode is immersed, said catholyte containing a soluble alkali metal ferricyanide salt during electrical charge and a corresponding alkali metal ferrocyanide salt during electrical discharge, and a circulating alkaline anolyte in which said anode is immersed, said catholyte and anolyte permitting, during electrical discharge, electro oxidation of zinc to soluble zincate ions at said anode which are transported by the circulating anolyte to a first storage tank and electro reduction of soluble ferricyanide ions to the corresponding soluble ferrocyanide ions at said cathode which are transported by the circulating catholyte to a second storage tank and, during electrical charge, electrodeposition of zinc metal on said anode and electro oxidation of soluble ferrocyanide salt to the corresponding ferricyanide salt at said cathode.

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