Water deionization cells

Patent metadata

Field	Value
Publication number	US-2023048716-A1
Application number	US-202117400782-A
Country	US
Kind code	A1
Filing date	Aug 12, 2021
Priority date	Aug 12, 2021
Publication date	Feb 16, 2023
Grant date	—

Abstract

A device for removing ions from a solution. The device includes first and second end plates, an anion exchange membrane positioned between the first and second end plates, a first multiple of two or more first cation intercalation electrodes positioned between the first end plate and the anion exchange membrane, and one or more second intercalation electrodes positioned between the second end plate and the anion exchange membrane. The first multiple of two or more first cation intercalation electrodes and the one or more second intercalation electrodes are configured to receive an electric bias of current or voltage such that the first multiple of two or more first cation intercalation electrodes and the one or more second intercalation electrodes store and release ions from the solution.

First claim

What is claimed is:

1 . A device for removing ions from a solution, the device comprising:
first and second end plates; an anion exchange membrane positioned between the first and second end plates; a first multiple of two or more first cation intercalation electrodes positioned between the first end plate and the anion exchange membrane; and one or more second intercalation electrodes positioned between the second end plate and the anion exchange membrane, the first multiple of two or more first cation intercalation electrodes and the one or more second intercalation electrodes configured to receive an electric bias of current or voltage such that the first multiple of two or more first cation intercalation electrodes and the one or more second intercalation electrodes store and release ions from the solution.

2 . The device of claim 1 , wherein the one or more second intercalation electrodes are comprised of a second multiple of two or more first cation intercalation electrodes.

3 . The device of claim 1 , wherein the one or more of the first multiple of two or more first cation intercalation electrodes include a porous electrode material.

4 . The device of claim 3 , wherein the porous electrode material has a porosity of 10 to 50%.

5 . The device of claim 3 , wherein the porous electrode material is selected from the group consisting of: plastic foam, carbon foam, metal foam, polymeric foam, and a combination thereof.

6 . The device of claim 1 , wherein the device does not include any flow fields configured for solution distribution.

7 . A device for removing ions from a solution, the device comprising:
first and second end plates; an anion exchange membrane positioned between the first and second end plates; one or more first intercalation electrodes positioned between the first end plate and the anion exchange membrane; one or more second intercalation electrodes positioned between the second end plate and the anion exchange membrane; a first current collector positioned between the one or more first intercalation electrodes and at least a portion of the first end plate; and a second current collector positioned between the one or more second intercalation electrodes and at least a portion of the second end plate, the one or more first intercalation electrodes and the one or more second intercalation electrodes configured to receive an electric bias of current or voltage such that the one or more first intercalation electrodes and the one or more second intercalation electrodes store and release ions from the solution.

8 . The device of claim 7 , wherein the first and/or second current collector is formed of a porous material.

9 . The device of claim 8 , wherein the porous material has a porosity of 10% to 50%.

10 . The device of claim 9 , wherein the porous material is selected from the group consisting of: plastic foam, carbon foam, metal foam, polymeric foam, or a combination thereof.

11 . The device of claim 7 , wherein the porous material is at least partially coated on one or both sides of the porous material with a coating material.

12 . The device of claim 11 , wherein the coating material is selected from the group consisting of: a carbon material, a metal oxide, a binary metal oxide, a ternary metal oxide, a metal nitride, a metal carbide, and a combination thereof.

13 . The device of claim 7 , wherein the first and/or second current collector includes a planar portion and an extending portion extending from and connected to the planar portion.

14 . The device of claim 13 , wherein the first and/or second end plate includes a recess for at least partially containing the planar portion of the first and/or second current collector.

15 . The device of claim 13 , wherein the first and/or second end plate includes an aperture configured to partially contain the extending portion of the first and/or second current collection.

16 . A device for removing ions from a solution, the device comprising:
first and second end plates; an anion exchange membrane positioned between the first and second end plates; a first multiple of two or more first cation intercalation electrodes positioned between the first end plate and the anion exchange membrane and including two or more first porous electrode plates; and one or more second intercalation electrodes positioned between the second end plate and the anion exchange membrane and including one or more second porous electrode plates, the first multiple of two or more first cation intercalation electrodes and the one or more second intercalation electrodes configured to receive an electric bias of current or voltage such that the one or more first cation intercalation electrodes and the one or more second intercalation electrodes store and release ions from the solution.

17 . The device of claim 16 , wherein the one or more first and second porous electrode plates have a porosity of 10% to 50%.

18 . The device of claim 16 , wherein the one or more first and second porous electrode plates are formed from a porous material selected from the group consisting of: plastic foam, carbon foam, metal foam, polymeric foam, or a combination thereof.

19 . The device of claim 18 , wherein the porous material includes apertures having a diameter of 2 to 8 millimeters.

20 . The device of claim 18 , wherein the porous material is at least partially coated on one or both sides of the porous material with a coating material.

Assignees

• Bosch Gmbh Robert

Inventors

• Kuppan Saravanan
• Besli Münir M
• Hellstrom Sondra
• Christensen Jake

Classifications

• Y02A20/124

  Water desalination · CPC title

• C25B11/031

  Porous electrodes · CPC title

• C02F1/469

  by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis · CPC title

• C02F1/46109 Primary

  Electrodes · CPC title

• B01D2313/345

  Electrodes · CPC title