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Scalable Asymmetric Supercapacitors Based on Hybrid Organic/Biopolymer Electrodes
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Science and Technology, Laboratory of Organic Electronics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0001-8478-4663
Poznan Univ Tech, Poland.
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
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2017 (English)In: ADVANCED SUSTAINABLE SYSTEMS, ISSN 2366-7486, Vol. 1, no 8, article id 1700054Article in journal (Refereed) Published
Abstract [en]

A trihybrid bioelectrode composed of lignin, poly(3,4-ethylenedioxythiophene) (PEDOT), and poly(aminoanthraquinone) (PAAQ) is prepared by a two-step galvanostatic electropolymerization, and characterized for supercapacitor applications. Using PEDOT/Lignin as a base layer, followed by the consecutive deposition of PAAQ, the hybrid electrode PEDOT/Lignin/PAAQ shows a high specific capacitance of 418 F g(-1) with small self-discharge. This trihybrid electrode material can be assembled into symmetric and asymmetric super-capacitors. The asymmetric supercapacitor uses PEDOT + Lignin/PAAQ as positive electrode and PEDOT/PAAQ as negative electrode, and exhibits superior electrochemical performance due to the synergistic effect of the two electrodes, which leads to a specific capacitance of 74 F g(-1). It can be reversibly cycled in the voltage range of 0-0.7 V. More than 80% capacitance is retained after 10 000 cycles. These remarkable features reveal the exciting potential of a full organic energy storage device with long cycle life.

Place, publisher, year, edition, pages
WILEY-V C H VERLAG GMBH , 2017. Vol. 1, no 8, article id 1700054
Keywords [en]
supercapacitors; redox polymers; conducting polymers; cycling stability; lignin
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-175181DOI: 10.1002/adsu.201700054ISI: 000424593300005OAI: oai:DiVA.org:liu-175181DiVA, id: diva2:1546918
Note

Funding Agencies|Power Papers project from the Knut and Alice Wallenberg foundation; Wallenberg Scholar grant from the Knut and Alice Wallenberg foundation; Marie Curie network Renaissance

Available from: 2021-04-23 Created: 2021-04-23 Last updated: 2021-04-28Bibliographically approved

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Ajjan, FátimaVagin, MikhailEver Aguirre, LuisOuyang, LiangqiInganäs, Olle
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