TY - JOUR
T1 - Conducting Redox Polymer as Organic Anode Material for Polymer-Manganese Secondary Batteries
AU - Oka, Kouki
AU - Löfgren, Rebecka
AU - Emanuelsson, Rikard
AU - Nishide, Hiroyuki
AU - Oyaizu, Kenichi
AU - Strømme, Maria
AU - Sjödin, Martin
N1 - Funding Information:
This work was funded through SweGRIDS ‐ by the Swedish Energy Agency, the Carl Trygger Foundation, the Swedish Research Council (VR), 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, 18 K19120, 18H03921, 18H05515, 19 J21527) from MEXT, Japan. The collaboration is the direct result of the Top Global University Project from MEXT, Japan.
Publisher Copyright:
© 2020 The Authors. Published by Wiley-VCH GmbH
PY - 2020/8/3
Y1 - 2020/8/3
N2 - Manganese-based aqueous batteries have attracted significant attention due to their earth-abundant components and low environmental burden. However, state-of-the-art manganese-zinc batteries are poorly rechargeable, owing to dendrite formation on the zinc anode. Organic materials could provide a safe and sustainable replacement. In the present work, a conducting redox polymer (CRP) based on a trimer of EPE (E=3,4-ethylenedioxythiophene; P=3,4-propylenedioxythiophene) and a naphthoquinone (NQ) pendant group is used as anode in polymer-manganese secondary batteries. The polymer shows stable redox conversion around+0.05 V vs. Ag/AgCl, and fast kinetics that involves proton cycling during pendant group redox conversion. For the first time, a CRP-manganese secondary battery was fabricated with pEP(NQ)E as the anode, manganese oxide as the cathode, and manganese-containing acidic aqueous solution as the electrolyte. This battery yielded a discharge voltage of 1.0 V and a discharging capacity of 76 mAh/ganode over >50 cycles and high rate capabilities (up to 10 C).
AB - Manganese-based aqueous batteries have attracted significant attention due to their earth-abundant components and low environmental burden. However, state-of-the-art manganese-zinc batteries are poorly rechargeable, owing to dendrite formation on the zinc anode. Organic materials could provide a safe and sustainable replacement. In the present work, a conducting redox polymer (CRP) based on a trimer of EPE (E=3,4-ethylenedioxythiophene; P=3,4-propylenedioxythiophene) and a naphthoquinone (NQ) pendant group is used as anode in polymer-manganese secondary batteries. The polymer shows stable redox conversion around+0.05 V vs. Ag/AgCl, and fast kinetics that involves proton cycling during pendant group redox conversion. For the first time, a CRP-manganese secondary battery was fabricated with pEP(NQ)E as the anode, manganese oxide as the cathode, and manganese-containing acidic aqueous solution as the electrolyte. This battery yielded a discharge voltage of 1.0 V and a discharging capacity of 76 mAh/ganode over >50 cycles and high rate capabilities (up to 10 C).
KW - aqueous manganese batteries
KW - conducting redox polymers
KW - organic electronics
KW - quinones
KW - renewable energy storage
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U2 - 10.1002/celc.202000711
DO - 10.1002/celc.202000711
M3 - Article
AN - SCOPUS:85089416226
SN - 2196-0216
VL - 7
SP - 3336
EP - 3340
JO - ChemElectroChem
JF - ChemElectroChem
IS - 15
ER -