公开(公告)号：US20240376621A1

公开(公告)日：2024-11-14

申请号：US18315999

申请日：2023-05-11

Applicant: University of Utah Research Foundation

Inventor： Tao Gao ,  Jing Liu

IPC: C25C1/06 ,  C25C7/02 ,  C25C7/04

Abstract: A method of producing iron metal by electrolysis of iron ore can include introducing iron ore into an anode chamber. The anode chamber can include a first electrolyte and an anode. The anode can oxidize water to form O2 gas and H+ ions in the anode chamber. The iron ore can be dissolved to form Fe3+ and/or Fe2+ ions in the anode chamber. The Fe3+ and/or Fe2+ ions can be transferred from the anode chamber to a cathode chamber through a cation exchange membrane that separates the anode chamber from the cathode chamber. The cathode chamber can include a second electrolyte and a cathode. The Fe3+ and/or Fe2+ ions can be reduced to form iron metal at the cathode.

公开(公告)号：US20230335771A1

公开(公告)日：2023-10-19

申请号：US18155573

申请日：2023-01-17

Applicant: University of Utah Research Foundation

Inventor： Tao Gao ,  Jing Liu

IPC: H01M8/18

CPC classification number: H01M8/188 ,  H01M2300/0005

Abstract: An iron redox battery can include an aqueous electrolyte that includes a dissolved iron salt and a dissolved co-salt. The co-salt can include an anion and a cation, where the anion is one or more of a multiatomic anion, bromide and iodide, and where the cation is a magnesium ion, a calcium ion, or a combination thereof. The battery can also include an iron-reducing electrode in contact with the aqueous electrolyte. The battery can be operated with a coulombic efficiency from about 95% to about 99.9%.