Dehydrated anion exchange membrane and method for producing a dehydrated anion exchange membrane

A laminated aluminum silicate film on anion exchange membranes addresses durability issues, enhancing seawater desalination and hydrogen production by ensuring robust performance and effective anion adsorption.

JP7869959B2Active Publication Date: 2026-06-04TOYOTA JIDOSHA KK
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
TOYOTA JIDOSHA KK
Filing Date
2023-10-16
Publication Date
2026-06-04

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Abstract

To provide a desalination anion exchange membrane excellent in durability: and to provide a method for manufacturing a desalination anion exchange membrane.SOLUTION: A desalination anion exchange membrane is such as to have an anion exchange membrane and an aluminum silicate membrane laminated on the anion exchange membrane. An Si / Al molar ratio of the aluminum silicate membrane is 0.1-0.9. A method for manufacturing a desalination anion exchange membrane comprises: a step 1 for making the surface of the anion exchange membrane adsorb aluminum-containing gas; a step 2 for making the surface of the anion exchange membrane adsorb silicon-containing gas; and a step 3 for generating an aluminum silicate by oxidizing the aluminum-containing gas and the silicon-containing gas adsorbed on the anion exchange membrane, and repeats the step 1, the step 2 and the step 3.SELECTED DRAWING: Figure 1
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