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US 12,626,958 B2Granted
Zinc-iodine battery
AssigneeThe Regents of the University of California
InventorsYat Li, Dun Lin
Life of this patent
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Abstract
An aqueous rechargeable zinc-iodine battery includes an aqueous electrolyte solution including zinc-iodine; a zinc anode; and a double-layered cathode having: a conductive substrate, and an adsorptive layer disposed over the conductive substrate.
Claims9
A cathode for a zinc-iodine redox flow battery including an aqueous electrolyte solution of zinc iodide, the cathode comprising:
- a first layer comprising a two-dimensional carbon structure triiodide ions, wherein the triiodide ions are generated when the cathode contacts the aqueous electrolyte solution of zinc iodide;
- and
- a second layer disposed on and in contact with the first layer, the second layer comprising an electrically-conductive polymer film including at least one of polypyrrole or poly(3,4-ethylenedioxythiophene), wherein the second layer adsorbs the generated triiodide ions, such that the triiodide ions are reduced at an interface between the first layer and the second layer.
Dependencies are inferred from the claim text.