TY - JOUR
T1 - Conducting Redox Polymer as a Robust Organic Electrode-Active Material in Acidic Aqueous Electrolyte towards Polymer–Air Secondary Batteries
AU - Oka, Kouki
AU - Strietzel, Christian
AU - Emanuelsson, Rikard
AU - Nishide, Hiroyuki
AU - Oyaizu, Kenichi
AU - Strømme, Maria
AU - Sjödin, Martin
N1 - Funding Information:
This work was funded by the Swedish Energy Agency, the Carl Trygger Foundation, the Olle Engqvist Byggmästare Foundation, and the Research Council Formas. K.O., H.N., and K.O. acknowledge the financial support by Grants‐in‐Aids for Scientific Research (17H03072, 18K19120, 18H03921, 18H05515, 19J21527) from MEXT, Japan. The collaboration is the direct result of the Top Global University Project from MEXT, Japan.
Publisher Copyright:
© 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2020/5/8
Y1 - 2020/5/8
N2 - Organic materials receive increasing attention as environmentally benign and sustainable electrode-active materials. We present a conducting redox polymer (CRP) based on poly(3,4-ethylenedioxythiophene) with naphthoquinone pendant group, which is formed from a stable suspension of a trimeric precursor and an oxoammonium cation as oxidant. This suspension allows us to easily coat the polymer onto a current collector, opening up use of roll-to-roll processing or ink-jet printing for electrode preparation. The CRP showed a full capacity of 76 mAh g−1 even at a high C rate of 100 C in acidic aqueous electrolyte. These properties make the CRP a promising candidate as anode-active material; a polymer–air secondary battery was fabricated with the CRP as anode, a conventional Pt/C catalyst as cathode, and sulfuric acid aqueous solution as electrolyte. This battery yielded a discharge voltage of 0.50 V and showed good cycling stability with 97 % capacity retention after 100 cycles and high rate capabilities up to 20 C.
AB - Organic materials receive increasing attention as environmentally benign and sustainable electrode-active materials. We present a conducting redox polymer (CRP) based on poly(3,4-ethylenedioxythiophene) with naphthoquinone pendant group, which is formed from a stable suspension of a trimeric precursor and an oxoammonium cation as oxidant. This suspension allows us to easily coat the polymer onto a current collector, opening up use of roll-to-roll processing or ink-jet printing for electrode preparation. The CRP showed a full capacity of 76 mAh g−1 even at a high C rate of 100 C in acidic aqueous electrolyte. These properties make the CRP a promising candidate as anode-active material; a polymer–air secondary battery was fabricated with the CRP as anode, a conventional Pt/C catalyst as cathode, and sulfuric acid aqueous solution as electrolyte. This battery yielded a discharge voltage of 0.50 V and showed good cycling stability with 97 % capacity retention after 100 cycles and high rate capabilities up to 20 C.
KW - batteries
KW - conducting redox polymers
KW - oxygen-reduction reaction
KW - quinone
KW - renewable energy storage
UR - http://www.scopus.com/inward/record.url?scp=85084156991&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85084156991&partnerID=8YFLogxK
U2 - 10.1002/cssc.202000627
DO - 10.1002/cssc.202000627
M3 - Article
C2 - 32267605
AN - SCOPUS:85084156991
SN - 1864-5631
VL - 13
SP - 2280
EP - 2285
JO - ChemSusChem
JF - ChemSusChem
IS - 9
ER -
