A polythiophene derivative bearing TEMPO as a cathode material for rechargeable batteries


Aydin M., Esat B., Kilic C., Koese M. E. , Ata A., Yilmaz F.

EUROPEAN POLYMER JOURNAL, cilt.47, ss.2283-2294, 2011 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 47 Konu: 12
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.eurpolymj.2011.09.002
  • Dergi Adı: EUROPEAN POLYMER JOURNAL
  • Sayfa Sayısı: ss.2283-2294

Özet

A polythiophene derivative bearing TEMPO radical was synthesized by oxidative chemical polymerization of its monomer. The polymer had a high spin density (2.05 x 10(21) spins/g of polymer). CV studies of the polymer showed that the electrochemical redox reaction of the TEMPO radicals were completely reversible. We demonstrated, for the first time, construction and charge/discharge characteristics of an organic radical battery utilizing a TEMPO bearing polythiophene based cathode material. The battery had an initial specific discharge capacity of 79 A h/kg (87% of the theoretical capacity) and an average output voltage of 3.6 V. The specific energy capacity initially discharged was 268 W h/kg. (C) 2011 Elsevier Ltd. All rights reserved.