Article (Scientific journals)
Polymer ionic liquid bearing radicals as an active material for organic batteries with ultrafast charge-discharge rate
Aqil, Mohamed; Ouhib, Farid; Aqil, Abdelhafid et al.
2018In European Polymer Journal, 106, p. 242-248
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Keywords :
battery; poly(ionic liquid)
Abstract :
[en] We report on the synthesis of a new polymer ionic liquid (PIL) based on polyvinylimidazolium bearing a pendent nitroxide radical on each monomer unit. Firstly, the quaternization of 1 vinylimidazole by a brominated alkoxyamine, i.e. a protected tetramethylpiperidinyloxy (TEMPO) nitroxide, was achieved. Then, the bromide anion was substituted by anion exchange reaction for the bis(trifluoro-methanesulfonyl)imide (TFSI) anion. The as-obtained monomer was successfully polymerized by free radical polymerization at low temperature (40 °C) by using 2,2′-azobis(4 methoxy-2.4-dimethyl valeronitrile) as initiator. Finally, the CO bond of the alkoxyamine pendant groups was thermally cleaved releasing the redox-active TEMPO nitroxide radicals. The PIL bearing TEMPO groups was coated onto a carbon nanotubes buckypaper and tested as cathode in a lithium ion battery. Such battery remarkably exhibits a high charge/discharge rate capability, e.g. at 60C the full charge is reached in 1 min and a high cycling stability; 100% of the initial capacity 60 mA h/g is kept after 1300 cycles.
Research center :
CESAM - Complex and Entangled Systems from Atoms to Materials - ULiège
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Materials science & engineering
Chemistry
Author, co-author :
Aqil, Mohamed ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM) > University of Mohammed Premier, Oujda, Morocco
Ouhib, Farid ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Aqil, Abdelhafid ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
El Idrissi, Abdelrahman;  University of Mohammed Premier, Oujda, Morocco
Detrembleur, Christophe ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Jérôme, Christine  ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Polymer ionic liquid bearing radicals as an active material for organic batteries with ultrafast charge-discharge rate
Publication date :
September 2018
Journal title :
European Polymer Journal
ISSN :
0014-3057
eISSN :
1873-1945
Publisher :
Elsevier Ltd
Volume :
106
Pages :
242-248
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
The Walloon Region in the frame of the "Batflex" project
Funders :
BELSPO - Service Public Fédéral de Programmation Politique scientifique [BE]
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Walloon region [BE]
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