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Conducting Redox Polymers as Electrical Energy Storage Materials
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Nanotechnology and Functional Materials.ORCID iD: 0000-0003-4126-4347
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Nanotechnology and Functional Materials.ORCID iD: 0000-0002-0036-9911
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: 0000-0002-4726-4121
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2019 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Conducting redox polymers (CRPs) is an attractive alternative as organic matter based electrical energy storage materials as they provide means of combining the favorable charge transport properties of conducting polymers with the high capacity and well defined redox chemistry of small redox active groups. In general CRPs are composed of a conducting polymer backbone where each or some of the monomers building up the polymer is bearing a redox active functional group. Although the working principle of CRPs is straightforward several key criteria need to be met in the CRP design in order to benefit from synergetic effects of the conducting polymer backbone and the pendent group in CRPs that will be outlined in this presentation: 1) As conducting polymers are only conducting in their charged state successful polymer-pendent group combinations rely on that the pendant group has a redox potential within the conducting region of the polymer backbone. This condition is referred to as redox matching and the requirement in the CRP design will be explicitly proven.[1] 2) The purpose of the polymer backbone is to provide efficient electron transport through the material. We have previously shown the polymer conductivity can be severely compromised by the pendant group.[2] This could be overcome by judicious choice of polymer backbone and results will be presented that show that non-activated (semi-metallic) electron transport can be achieved in CRPs.[3-4] 3) A final design principle that will be discussed is related to the polymerizability and how it is affected by the nature of the link between the polymer backbone and the pendent.[5] In addition a novel polymerization method for CRP monomers will be presented that allow bulk processing even for insoluble CRPmaterials.

Place, publisher, year, edition, pages
2019.
National Category
Nano Technology Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
URN: urn:nbn:se:uu:diva-397769OAI: oai:DiVA.org:uu-397769DiVA, id: diva2:1372881
Conference
Workshop on Electrochemistry of Electroactive Materials 2019
Funder
Swedish Energy AgencyCarl Tryggers foundation Swedish Foundation for Strategic Research Available from: 2019-11-25 Created: 2019-11-25 Last updated: 2019-11-25

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