Aryl ether-free polymer electrolytes for electrochemical and energy devices
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Lund Univ. (Sweden)
- Univ. of Yamanashi, Kofu (Japan); Waseda Univ., Shinjuku (Japan)
- Rensselaer Polytechnic Inst., Troy, NY (United States)
- Carnegie Mellon Univ., Pittsburgh, PA (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Simon Fraser Univ., Burnaby, BC (Canada)
- Univ. of Surrey, Guildford (United Kingdom)
- Korea Institute of Science and Technology (KIST), Seoul (Korea, Republic of); University of Science and Technology (UST), Seoul (Korea, Republic of); Korea Univ., Seoul, (Korea, Republic of). KU-KIST School
- Tianjin Univ. (China)
Anion exchange polymers (AEPs) play a crucial role in green hydrogen production through anion exchange membrane water electrolysis. The chemical stability of AEPs is paramount for stable system operation in electrolysers and other electrochemical devices. Given the instability of aryl ethercontaining AEPs under high pH conditions, recent research has focused on quaternized aryl ether-free variants. The primary goal of this review is to provide a greater depth of knowledge on the synthesis of aryl ether-free AEPs targeted for electrochemical devices. Synthetic pathways that yield polyaromatic AEPs include acid-catalysed polyhydroxyalkylation, metal-promoted coupling reactions, ionene synthesis via nucleophilic substitution, alkylation of polybenzimidazole, and Diels–Alder polymerization. Polyolefinic AEPs are prepared through addition polymerization, ring-opening metathesis, radiation grafting reactions, and anionic polymerization. Discussions cover structure–property–performance relationships of AEPs in fuel cells, redox flow batteries, and water and CO2 electrolysers, along with the current status of scale-up synthesis and commercialization.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Hydrogen Fuel Cell Technologies Office (HFTO); USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC)
- DOE Contract Number:
- 89233218CNA000001; SC0019445; NA0003525
- OSTI ID:
- 2377942
- Report Number(s):
- LA-UR--24-21060
- Country of Publication:
- United States
- Language:
- English
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