Aqueous high voltage zinc-anode battery
AssigneeUrban Electric Power Inc.
InventorsGautam G. YADAV, Meir WEINER, Aditya UPRETI, Jinchao HUANG, Sanjoy BANERJEE
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Abstract
A high voltage zinc (Zn)-anode battery comprising a cathode comprising a cathode electroactive material; an anode comprising a Zn electroactive material; a catholyte in contact with the cathode, wherein the catholyte is not in contact with the anode; an anolyte in contact with the anode, wherein the anolyte is not in contact with the cathode; and a separator disposed between the anolyte and the catholyte. The catholyte has a pH of less than 4, and the anolyte has a pH of greater than 10. The separator has ion-selective properties.
Claims34
A high voltage zinc (Zn)-anode battery comprising:
- a cathode comprising a cathode electroactive material;
- an anode comprising an anode electroactive material, wherein the anode electroactive material comprises a Zn electroactive material;
- a catholyte in contact with the cathode, wherein the catholyte is not in contact with the anode, and wherein the catholyte has a pH of less than 4;
- and
- an anolyte in contact with the anode, wherein the anolyte is not in contact with the cathode, and wherein the anolyte has a pH of greater than 10.
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A method of forming a high voltage zinc (Zn)-anode battery, the method comprising:
- disposing a catholyte in contact with a cathode, wherein the cathode comprises a cathode electroactive material, and wherein the catholyte has a pH of less than 4;
- disposing an anolyte in contact with an anode, wherein the anode comprises a Zn electroactive material, and wherein the anolyte has a pH of greater than 10;
- and
- disposing at least one of a separator or a buffer layer between the anolyte and the catholyte, wherein the catholyte is not in contact with the anode, and wherein the anolyte is not in contact with the cathode.
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A method for producing energy comprising:
- discharging a high voltage zinc (Zn)-anode battery to a discharge voltage to produce energy, wherein the high voltage Zn-anode battery comprises:
- a cathode comprising a cathode electroactive material;
- an anode comprising an anode electroactive material, wherein the anode electroactive material comprises a Zn electroactive material comprising Zn, and wherein at least a portion of the Zn of the Zn electroactive material is oxidized during the discharging to form oxidized zinc;
- a catholyte in contact with the cathode, wherein the catholyte is not in contact with the anode, and wherein the catholyte has a pH of less than 4;
- and
- an anolyte in contact with the anode, wherein the anolyte is not in contact with the cathode, and wherein the anolyte has a pH of greater than 10;
- and
- charging the high voltage Zn-anode battery to a charge voltage, wherein at least a portion of the oxidized zinc is reduced to Zn during the charging.
Dependencies are inferred from the claim text.