journal article·2019-08-26Open access

Asymmetric Aqueous Supercapacitor Based on p- and n-Type Conducting Polymers

Anton V. Volkov, Hengda Sun, Renee Kroon, Tero-Petri Ruoko, Canyan Che, Jesper Edberg, Christian Müller, Simone Fabiano, Xavier Crispin

ACS Applied Energy Materials· Volume 2· Issue 8

Abstract

We demonstrated an asymmetric aqueous supercapacitor made of p- and n-type conducting polymer electrodes. We used the high electron affinity (EA) n-type polymer poly(benzimidazobenzophenanthroline) (BBL) as the anode conducting material, and the low ionization potential (IP) p-type polar polythiophene p(g42T-T) as the cathode material. EABBL matches IPp(g42T-T), enabling the fabrication of all-organic asymmetric p/n-supercapacitors that function in aqueous electrolytes. The devices operate in a voltage window up to 1 V, yielding areal capacitances of 90 mF cm–2 and specific capacitances of 33 F g–1 as well as excellent cycling stability with almost 100% capacitance retention over 10 000 cycles.
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Research context

OpenAlex topics: Supercapacitor Materials and Fabrication · Conducting polymers and applications · Advanced battery technologies research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, SE-601 74 Norrköping, Sweden

Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-412 96 Göteborg, Sweden

Printed Electronics, RISE Acreo, SE-601 74 Norrköping, Sweden

Funding

Vetenskapsr?det · VINNOVA · Knut och Alice Wallenbergs Stiftelse · Stiftelsen f?r?Strategisk Forskning · Swedish Government Strategic Research Area in Materials Science on Functional Materials, Link?ping University · ?Forsk

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