Invention Grant
- Patent Title: Anion exchange polymers and membranes for electrolysis
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Application No.: US17474198Application Date: 2021-09-14
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Publication No.: US11980879B2Publication Date: 2024-05-14
- Inventor: Chaoyi Ba , Chunqing Liu , Xueliang Dong
- Applicant: UOP LLC
- Applicant Address: US IL Des Plaines
- Assignee: UOP LLC
- Current Assignee: UOP LLC
- Current Assignee Address: US IL Des Plaines
- Main IPC: H01M8/04
- IPC: H01M8/04 ; B01J41/13 ; C08G73/06 ; C08J5/22 ; C25B1/04 ; C25B11/032 ; C25B13/08 ; H01M8/1004 ; H01M8/103

Abstract:
Anion exchange polymers having high OH− conductivity, chemical stability, and mechanical stability have been developed for use in AEMs. The anion exchange polymers have stable hydrophobic polymer backbones, stable hydrophilic quaternary ammonium cationic groups, and hydrophilic phenolic hydroxyl groups on the polymer side chains. The polymers have polymer backbones free of ether bonds, hydrophilic polymer side chains, and piperidinium ion-conducting functionality, which enables efficient and stable operation in water or CO2 electrolysis, redox flow battery, and fuel cell applications. The polymer comprises a plurality of repeating units of formula (I)
Anion exchange membranes and membrane electrode assemblies incorporating the anion exchange polymers are also described.
Anion exchange membranes and membrane electrode assemblies incorporating the anion exchange polymers are also described.
Public/Granted literature
- US20230102700A1 ANION EXCHANGE POLYMERS AND MEMBRANES FOR ELECTROLYSIS Public/Granted day:2023-03-30
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