Reference : Bioinspired redox-active catechol-bearing polymers as ultra-robust organic cathodes f...
Scientific journals : Short communication
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/214179
Bioinspired redox-active catechol-bearing polymers as ultra-robust organic cathodes for lithium storage
English
Patil, Nagaraj [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) > > > >]
Ouhib, Farid [University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM) > > > >]
Admassie, Shimelis [University of Linköping, Biomolecular and Organic Electronics, Sweden > University of Addis Ababa, Ethiopia > > >]
Inganäs, Olle [University of Linköping, Biomolecular and Organic Electronics, Sweden > > > >]
Jérôme, Christine mailto [University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM) > > > >]
Detrembleur, Christophe mailto [University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM) > > > >]
In press
Advanced Materials
Wiley-VCH Verlag Gmbh
1703373
Yes
International
0935-9648
Weinheim
Germany
[en] battery
[en] Redox-active catechols are bioinspired precursors for ortho-quinones that are characterized by higher discharge potentials than para-quinones, the latter being extensively used as organic cathode materials for lithium ion batteries (LIBs). Here, this study demonstrates that the rational molecular design of copolymers bearing catechol- and Li+ ion-conducting anionic pendants endow redox-active polymers (RAPs) with ultrarobust electrochemical energy storage features when combined to carbon nanotubes as a flexible, binder-, and metal current collector-free buckypaper electrode. The importance of the structure and functionality of the RAPs on the battery performances in LIBs is discussed. The structure-optimized RAPs can store high-capacities of 360 mA h g−1 at 5C and 320 mA h g−1 at 30C in LIBs. The high ion and electron mobilities within the buckypaper also enable to register 96 mA h g−1 (24% capacity retention) at an extreme C-rate of 600C (6 s for total discharge). Moreover, excellent cyclability is noted with a capacity retention of 98% over 3400 cycles at 30C. The high capacity, superior active-material utilization, ultralong cyclability, and excellent rate performances of RAPs-based electrode clearly rival most of the state-of-the-art Li+ ion organic cathodes, and opens up new horizons for large-scalable fabrication of electrode materials for ultrarobust Li storage.
Center for Education and Research on Macromolecules (CERM) ; CESAM Complex and Entangled Systems from Atoms to Materials (CESAM)
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy
Researchers
http://hdl.handle.net/2268/214179
10.1002/Article
FP7 ; 289347 - RENAISSANCE - TRAINING NETWORK IN INNOVATIVE POLYELECTROLYTES FOR ENERGY AND ENVIRONMENT

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