Asymmetric Aqueous Supercapacitor Based on p- and n-Type Conducting Polymers
Journal article, 2019

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(g(4)2T-T) as the cathode material. EA(BBL) 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.

asymmetric supercapacitor

conducting polymers

energy storage

aqueous electrolyte

Author

Anton V. Volkov

Linköping University

Hengda Sun

Linköping University

Renee Kroon

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Christian Müller Group

Tero-Petri Ruoko

Linköping University

Canyan Che

Linköping University

Jesper Edberg

RISE Research Institutes of Sweden

Christian Müller

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Christian Müller Group

Simone Fabiano

Linköping University

Xavier Crispin

Linköping University

ACS APPLIED ENERGY MATERIALS

2574-0962 (ISSN)

Vol. 2 8 5350-5355

Subject Categories

Polymer Chemistry

Textile, Rubber and Polymeric Materials

Materials Chemistry

DOI

10.1021/acsaem.9b00853

More information

Latest update

10/22/2019