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Conducting Polymer Paper-Based Cathodes for High-Areal-Capacity Lithium–Organic Batteries
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Inorganic Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
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. (Nanotechnology and Functional Materials)
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2015 (English)In: Energy Technology, ISSN 2194-4296, Vol. 3, no 6, 563-569 p.Article in journal (Refereed) Published
Abstract [en]

Conducting polymers have been considered for use as cathode materials in rechargeable lithium-ion batteries (LIBs) since 1981 but problems with poor cycling stability, rapid self-discharge, and low energy and power densities have so far limited their applicability. Herein it is shown that nanostructured freestanding conducting polymer composites [e.g., polypyrrole (PPy) and polyaniline (PANI)] can be used to circumvent these shortcomings. Freestanding and binder-free PPy and cellulose-based composites can straightforwardly be used as versatile organic cathode materials for LIBs. The composite, reinforced with chopped carbon filaments (CCFs), exhibited a large active mass loading of approximately 10mgcm(-2), an areal capacity of 1.0mAhcm(-2) (corresponding to 102mAhg(-1)), and stable cycling. With an active mass loading of 4.4mgcm(-2), a capacity of 0.22mAhcm(-2) (corresponding to 58mAhg(-1)) was found for current densities of 5Ag(-1) yielding discharge times of approximately 40seconds, and a capacity retention of 91% over 100cycles was obtained at 0.2Ag(-1). The present method constitutes a straightforward approach for the manufacturing of high-performance freestanding electroactive conducting-polymer-based paper-like electrodes for use in inexpensive and sustainable, high-performance organic LIBs.

Place, publisher, year, edition, pages
2015. Vol. 3, no 6, 563-569 p.
Keyword [en]
conducting polymers, lithium-ion batteries, paper, polyaniline, polypyrrole
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
URN: urn:nbn:se:uu:diva-254607DOI: 10.1002/ente.201402224ISI: 000356082700003OAI: oai:DiVA.org:uu-254607DiVA: diva2:818991
Funder
Carl Tryggers foundation
Available from: 2015-06-09 Created: 2015-06-09 Last updated: 2016-11-30Bibliographically approved

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Publisher's full texthttp://dx.doi.org/10.1002/ente.201402224

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Wang, ZhaohuiXu, ChaoTammela, PetterZhang, PengEdström, KristinaGustafsson, TorbjörnStrömme, MariaNyholm, Leif

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