Electrochemical water deionization separators

US12503380B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12503380-B2
Application numberUS-202117462553-A
CountryUS
Kind codeB2
Filing dateAug 31, 2021
Priority dateAug 31, 2021
Publication dateDec 23, 2025
Grant dateDec 23, 2025

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A separator for an electrochemical deionization cell for removing ions from a solution stream. The separator includes an anion exchange membrane layer formed from an anion exchange membrane material. The anion exchange membrane layer has a first surface and an opposing second surface. The separator further includes a porous layer adjacent to the anion exchange membrane layer and formed from a porous material. The porous layer has a first surface and an opposing second surface. The first surface of the porous layer is adjacent to the first surface of the anion exchange membrane layer.

First claim

Opening claim text (preview).

What is claimed is: 1 . A separator for an electrochemical deionization cell for removing ions from a solution stream, the separator comprising: an anion exchange membrane layer formed from an anion exchange membrane material, the anion exchange membrane layer having a first surface and an opposing second surface; and a porous layer adjacent to the anion exchange membrane layer and formed from a porous material, the porous layer having a first surface and an opposing second surface, the first surface of the porous layer being adjacent to the first surface of the anion exchange membrane layer, the porous layer being at least partially filled with an ionic liquid, and the ionic liquid includes one or more cations including ammonium, (methyl)imidazolium, (methyl)pyrrolidinium, or a combination thereof. 2 . The separator of claim 1 , wherein the anion exchange membrane material is different than the porous material. 3 . The separator of claim 1 , further comprising a second porous layer adjacent to the anion exchange membrane layer and formed from a second porous material, the second porous layer having a first surface and an opposing second surface, and the first surface of the second porous layer being adjacent to the second surface of the anion exchange membrane layer. 4 . The separator of claim 1 , further comprising a second anion exchange membrane layer formed from a second anion exchange membrane material, the second anion exchange membrane layer having a first surface and an opposing second surface, and the second surface of the second anion exchange membrane layer being adjacent to the second surface of the porous layer. 5 . The separator of claim 1 , wherein the anion exchange membrane layer has an anion exchange membrane layer thickness, the porous layer has a porous layer thickness, and the anion exchange membrane layer thickness is less than the porous layer thickness. 6 . The separator of claim 1 , wherein the one or more cations includes ammonium. 7 . The separator of claim 1 , wherein the one or more cations includes (methyl)imidazolium. 8 . The separator of claim 1 , wherein the one or more cations includes (methyl)pyrrolidinium.

Assignees

Inventors

Classifications

  • Seawater, e.g. for desalination · CPC title

  • Electrolytic cell with membranes or diaphragms · CPC title

  • Conductivity or salinity · CPC title

  • Devices therefor; Their operating or servicing · CPC title

  • based on organic and/or inorganic macromolecular compounds · CPC title

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What does patent US12503380B2 cover?
A separator for an electrochemical deionization cell for removing ions from a solution stream. The separator includes an anion exchange membrane layer formed from an anion exchange membrane material. The anion exchange membrane layer has a first surface and an opposing second surface. The separator further includes a porous layer adjacent to the anion exchange membrane layer and formed from a p…
Who is the assignee on this patent?
Bosch Gmbh Robert
What technology area does this patent fall under?
Primary CPC classification C02F1/4691. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Dec 23 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 11 related publications on this page (citations in our corpus or others sharing the same primary CPC).