Electrodialysis deionization battery cells

Patent metadata

Field	Value
Publication number	US-12234164-B2
Application number	US-202318110119-A
Country	US
Kind code	B2
Filing date	Feb 15, 2023
Priority date	Dec 31, 2019
Publication date	Feb 25, 2025
Grant date	Feb 25, 2025

Abstract

A deionization battery cell including a first electrode compartment containing a first intercalation host electrode and includes a first water stream compartment in fluid communication with the first electrode compartment. The deionization battery cell further includes a second electrode compartment containing a second intercalation host electrode and a second water stream compartment in fluid communication with the second electrode compartment. The deionization battery cell also includes an ion exchange membrane assembly including a plurality of anion exchange membranes separated from each other, and from one or more cation exchange membranes positioned between the anion exchange membranes, by a plurality of intervening water stream compartments. The first and second water stream compartments are separated from one another by the ion exchange membrane assembly.

First claim

What is claimed is:

1. A deionization battery cell comprising:
a first electrode compartment containing a first intercalation host electrode;
a first water stream compartment in fluid communication with the first electrode compartment;
a second electrode compartment containing a second intercalation host electrode;
a second water stream compartment in fluid communication with the second electrode compartment; and
an ion exchange membrane assembly including a plurality of anion exchange membranes separated from each other, and from one or more cation exchange membranes positioned between the anion exchange membranes, by a plurality of intervening water stream compartments, wherein the first and second water stream compartments are separated from one another by the ion exchange membrane assembly, the plurality of anion exchange membranes includes first and second anion exchange membranes, the first anion exchange membrane is adjacent the first intercalation host electrode, the second anion exchange membrane is adjacent the second intercalation host electrode, all adjacent membrane pairs alternate between anion and cation exchange membranes.

2. The deionization battery cell of claim 1 , wherein the ion exchange membrane assembly includes between 2 and 11 anion exchange membranes and between 1 and 10 cation exchange membranes.

3. The deionization battery cell of claim 2 , wherein the ion exchange membrane assembly includes between 2 and 11 intervening water stream compartments.

4. The deionization battery cell of claim 1 , wherein the ion exchange membrane assembly includes between 4 and 8 anion exchange membranes and between 3 and 7 cation exchange membranes.

5. The deionization battery cell of claim 1 , wherein the first and second intercalation host electrodes comprise an intercalation host material, a conductivity agent, and a polymeric binder.

6. The deionization battery cell of claim 5 , wherein the conductivity agent includes carbon black, amorphous carbon, carbon fibers, quaternary ammonium salt, alkyl sulfonate, and/or halogen-free cationic compound.

7. The deionization battery cell of claim 1 , wherein one or more of the plurality of anion exchange membranes include graphene and/or graphene oxide.

8. A deionization battery cell comprising:
a first electrode compartment containing a first intercalation host electrode;
a first water stream compartment in fluid communication with the first electrode compartment;
a first water inlet configured to feed a first water stream into the first water stream compartment in a first direction;
a second electrode compartment containing a second intercalation host electrode;
a second water stream compartment in fluid communication with the second electrode compartment;
a second water inlet configured to feed a second water stream into the second water stream compartment in a second direction;
an ion exchange membrane assembly including a plurality of anion exchange membranes separated from each other, and from one or more cation exchange membranes positioned between the anion exchange membranes, by a plurality of intervening water stream compartments, wherein the first and second water stream compartments are separated from one another by the ion exchange membrane assembly, the plurality of anion exchange membranes includes first and second anion exchange membranes, the first anion exchange membrane is adjacent the first intercalation host electrode, the second anion exchange membrane is adjacent the second intercalation host electrode, all adjacent membrane pairs alternate between anion and cation exchange membranes; and
a controller programmed to adjust an amount of an electric current supplied to change a flow of anions and/or cations present in the first and/or second water streams.

9. The deionization battery cell of claim 8 , wherein the controller is configured to adjust a first and/or second volumetric flow rate in the first and/or second water inlets.

10. The deionization battery cell of claim 8 , wherein the ion exchange membrane assembly includes more anion exchange membranes than cation exchange membranes.

11. The deionization battery cell of claim 8 , wherein the ion exchange membrane assembly includes one more anion exchange membrane than cation exchange membrane.

12. The deionization battery cell of claim 8 , wherein the first intercalation host electrode, the second intercalation host electrode, the anion exchange membrane, and the cation exchange membrane have the same length.

13. The deionization battery cell of claim 8 , wherein the first water stream is a brine water stream, and the second water stream is a clean water stream.

14. The deionization battery cell of claim 8 , wherein the first and second directions are the same.

15. A deionization battery cell comprising:
a first intercalation host electrode;
a first water stream compartment in fluid communication with the first intercalation host electrode;
a second intercalation host electrode;
a second water stream compartment in fluid communication with the second intercalation host electrode; and
an ion exchange membrane assembly including alternating anion exchange membranes and cation exchange membranes spaced apart from each other by intervening water stream compartments, the anion exchange membranes include first and second anion exchange membranes, the first anion exchange membrane is adjacent the first intercalation host electrode, and the second anion exchange membrane is adjacent the second intercalation host electrode, all adjacent membrane pairs alternate between anion and cation exchange membranes.

16. The deionization battery cell of claim 15 , wherein the first and second water stream compartments are separated from one another by the ion exchange membrane assembly.

17. The deionization battery cell of claim 15 , wherein the first intercalation host electrode, the second intercalation host electrode, the anion exchange membrane, and the cation exchange membrane have the same lengths.

18. The deionization battery cell of claim 15 , wherein the ion exchange membrane assembly includes between 2 and 11 anion exchange membranes and between 1 and 10 cation exchange membranes.

19. The deionization battery cell of claim 18 , wherein the ion exchange membrane assembly includes between 2 and 11 intervening water stream compartments.

20. The deionization battery cell of claim 15 , wherein the first and second intercalation host electrodes comprise an intercalation host material, a conductivity agent, and a polymeric binder.

Assignees

• Bosch Gmbh Robert

Inventors

• Metzger Michael
• Kim Soo
• Kuppan Saravanan
• Hellstrom Sondra
• Christensen Jake

Classifications

• C02F2201/4611

  Fluid flow · CPC title

• C02F2201/46135

  Voltage · CPC title

• C02F2201/46115

  Electrolytic cell with membranes or diaphragms · CPC title

• C02F2001/46133

  characterised by the material · CPC title

• C02F2103/08

  Seawater, e.g. for desalination · CPC title