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Kinetics of conducting polymers with side chain quinone units
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Nanotechnology and Functional Materials. (Nanoteknologi och Funktionella Material)
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Nanotechnology and Functional Materials.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Nanotechnology and Functional Materials.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Nanotechnology and Functional Materials.ORCID iD: 0000-0002-5496-9664
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2013 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Quinones have been suggested as active material in organic lithium ion battery (LIB) cathodes. They are expected to have higher specific capacities and to be cheaper and more environmentally friendly than the inorganic lithium intercalation compounds used in LIBs today. However, quinone compounds suggested for this purpose often suffer from slow kinetics and low cyclability due to dissolution. In this work, conducting polymers containing pending quinone moieties were synthesized. Immobilizing the redox active quinone units on a conducting polymer matrix decreases both resistance and solubility, which improves the speed and the cyclability of the system, while maintaining a high specific capacity. The two-electron redox reaction of the quinone units in these polymers yields a theoretical capacity of ~300 mAh/g. The polymers were studied electrochemically and spectroscopically to elucidate the kinetics of the polymer charging and the redox cycling of the quinone units.

Place, publisher, year, edition, pages
2013.
National Category
Physical Chemistry Engineering and Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
URN: urn:nbn:se:uu:diva-202084OAI: oai:DiVA.org:uu-202084DiVA: diva2:630855
Conference
223rd Meeting of The Electrochemical Society
Available from: 2013-06-19 Created: 2013-06-19 Last updated: 2017-01-25Bibliographically approved

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Karlsson, ChristofferHuang, HaoOlsson, HenrikStrømme, MariaGogoll, AdolfSjödin, Martin

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