Carbon-oxygen battery and method of use thereof

Patent metadata

Field	Value
Publication number	US-2024120517-A1
Application number	US-202318378860-A
Country	US
Kind code	A1
Filing date	Oct 11, 2023
Priority date	Oct 11, 2022
Publication date	Apr 11, 2024
Grant date	—

Abstract

A carbon-oxygen battery system, including: a Boudouard reactor in fluid communication with an electrochemical cell, wherein the electrochemical cell has a CO/CO 2 inlet, a CO/CO 2 outlet, and an oxygen outlet, and wherein the CO/CO 2 outlet is fluidly connected by a first stream to an inlet of the Boudouard reactor, and wherein the CO/CO 2 inlet is fluidly connected by a second stream to an outlet of the Boudouard reactor; and a CO/CO 2 tank fluidly connected to at least one of the first stream or the second stream.

First claim

1 . A carbon-oxygen battery system, comprising:
a Boudouard reactor in fluid communication with an electrochemical cell,
wherein the electrochemical cell has a CO/CO 2 inlet, a CO/CO 2 outlet, and an oxygen outlet, and
wherein the CO/CO 2 outlet is fluidly connected by a first stream to an inlet of the Boudouard reactor, and
wherein the CO/CO 2 inlet is fluidly connected by a second stream to an outlet of the Boudouard reactor; and
a CO/CO 2 tank fluidly connected to at least one of the first stream or the second stream.

2 . The carbon-oxygen battery system of claim 1 , further comprising a carbon source in fluid communication with the Boudouard reactor.

3 . The carbon-oxygen battery system of claim 1 , further comprising a carbon source, and a conveyance member configured to convey carbon between the Boudouard reactor and the carbon source.

4 . The carbon-oxygen battery system of claim 2 , wherein the carbon source is fluidically connected to the electrochemical cell via the first stream or the second stream.

5 . The carbon-oxygen battery system of claim 1 , wherein the carbon source is fluidically connected to the first stream or the second stream between the Boudouard reactor and at least one of the CO/CO 2 inlet or the CO/CO 2 outlet of the electrochemical cell.

6 . The carbon-oxygen battery system of claim 1 , further comprising a fuel gauge.

7 . The carbon-oxygen battery system of claim 6 , wherein the fuel gauge is configured to sense the carbon source, and wherein the fuel gauge is a carbon sensor configured to determine a mass of carbon in the carbon source, a volume of carbon in the carbon source, or a combination thereof.

8 . The carbon-oxygen battery system of claim 6 , wherein the fuel gauge is configured to sense the CO/CO 2 tank, and wherein the fuel gauge is configured to determine a mass of CO/CO 2 in the CO/CO 2 tank, a pressure of CO/CO 2 in the CO/CO 2 tank, or a combination thereof.

9 . The carbon-oxygen battery system of claim 1 , wherein the electrochemical cell comprises a plurality of electrochemical cells, and wherein at least one electrochemical cell of the plurality of electrochemical cells is a removable electrochemical cell.

10 . The carbon-oxygen battery system of claim 9 ,
wherein the removable electrochemical cell is configured to be selectively isolated from the carbon-oxygen battery system, preferably wherein the removable electrochemical cell is configured to be selectively isolated from the carbon-oxygen battery system.

11 . The carbon-oxygen battery system of claim 9 , wherein each electrochemical cell of the plurality of electrochemical cells is in electrical contact with the external circuit.

12 . The carbon-oxygen battery system of claim 9 , wherein each removable electrochemical cell of the plurality of removable electrochemical cells is electrically connected to the external circuit in parallel.

13 . The carbon-oxygen battery system of claim 1 , wherein the electrochemical cell comprises a positive electrode, a negative electrode, and an electrolyte, wherein the positive electrode and the negative electrode are connected to an external circuit.

14 . The carbon-oxygen battery system of claim 13 , wherein the electrolyte comprises a solid oxide electrolyte, a molten carbonate electrolyte, or a combination thereof.

15 . The carbon-oxygen battery system of claim 1 , wherein the electrochemical cell comprises a multilayered electrolyte comprising a first layer and a second layer, wherein the first layer and the second layer are different.

16 . The carbon-oxygen battery system of claim 9 ,
wherein each removable electrochemical cell is configured to be independently isolated from the system, and wherein the carbon-oxygen battery system is configured to operate when one or more of the removable electrochemical cells is isolated from the system and at least one electrochemical cell is not isolated from the system.

17 . The carbon-oxygen battery system of claim 1 , wherein the Boudouard reactor or the electrochemical cell is disposed in a thermal chamber.

18 . The carbon-oxygen battery system of claim 1 , further comprising a heat exchanger configured to exchange heat between the Boudouard reactor and the electrochemical cell.

19 . The carbon-oxygen battery system of claim 1 , wherein the battery system comprises a plurality of electrochemical cells,
wherein the battery system further comprises a plurality of thermal chambers, and wherein the Boudouard reactor is disposed in a first thermal chamber of the plurality of thermal chambers, and at least one electrochemical cell of the plurality of electrochemical cells is disposed in a second thermal chamber of the plurality of thermal chambers.

20 . A method of operating the carbon-oxygen battery system of claim 1 , the method comprising:
supplying electricity and a CO/CO 2 stream to the carbon-oxygen battery system to charge the battery system, wherein
the CO/CO 2 stream is provided by the CO/CO 2 tank,
carbon dioxide from the CO/CO 2 stream is converted to carbon monoxide and oxygen by the electrochemical cell,
the carbon monoxide from the electrochemical cell is converted to carbon dioxide and carbon in a Boudouard reaction, and
the carbon produced by the charging is stored in a carbon source; and
discharging the battery system to convert the carbon to carbon dioxide and produce electricity, wherein
the carbon and carbon dioxide are converted in a Boudouard reaction to carbon monoxide,
the carbon monoxide and oxygen are converted to carbon dioxide by the electrochemical cell, the carbon dioxide is added to the CO/CO 2 stream, and
the CO/CO 2 produced by the discharging is stored in the CO/CO 2 tank.

21 . The method of claim 20 , further comprising accumulating the carbon dioxide in the CO/CO 2 tank.

22 . A method of operating a carbon-oxygen battery system, the method comprising:
providing a carbon-oxygen battery system comprising
a Boudouard reactor in fluid communication with an electrochemical cell, wherein the electrochemical cell has a CO/CO 2 inlet, a CO/CO 2 outlet and an oxygen outlet, wherein the CO/CO 2 outlet is fluidly connected by a first stream to an inlet of the Boudouard reactor, and wherein the CO/CO 2 inlet is fluidly connected by a second stream to an outlet of the Boudouard reactor; and
a CO/CO 2 tank fluidly connected to at least one of the first stream or the second stream;
supplying electricity and a CO/CO 2 stream to the carbon-oxygen battery system to charge the battery system, wherein
the CO/CO 2 stream is provided by the CO/CO 2 tank,
carbon dioxide from the CO/CO 2 stream is converted to carbon monoxide and oxygen by the electrochemical cell,
the carbon monoxide from the electrochemical cell is converted to carbon dioxide and carbon in a Boudouard reaction, and
the carbon produced by the charging is stored in a carbon source; and
discharging the battery system to convert the carbon to carbon dioxide and produce electricity, wherein
the carbon and carbon dioxide are converted in a Boudouard reaction to carbon monoxide,
the carbon monoxide and oxygen are converted to carbon dioxide by the electrochemical cell, the carbon dioxide is added to the CO/CO 2 stream, and
the CO/CO 2 produced by the discharging is stored in the CO/CO 2 tank.

23 . The method of claim 20 , wherein the CO/CO 2 stream comprises CO, CO 2 , N 2 , He, Ar, or a combinati

Assignees

• Form Energy Inc

Inventors

• Woodford William Henry
• Grandahl Tyler
• Moon Hwan

Classifications

• H01M8/0631 Primary

  Reactor construction specially adapted for combination reactor/fuel cell (hydrogen C01B3/00; reactors for physicochemical processes B01J19/00) · CPC title

• H01M8/0444

  Concentration; Density (H01M8/04492 takes precedence) · CPC title

• H01M8/1246

  the electrolyte consisting of oxides · CPC title

• H01M2008/1293

  Fuel cells with solid oxide electrolytes · CPC title

• Y02E60/50

  Fuel cells · CPC title