A polythiophene derivative bearing TEMPO as a cathode material for rechargeable batteries |
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| Authors: | M Ayd?n B Esat Ç K?l?ç ME Köse A Ata F Y?lmaz |
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| Institution: | aDepartment of Chemistry, Gebze Institute of Technology, 41400 Gebze, Kocaeli, Turkey;bDepartment of Chemistry, Fatih University, 34500 Buyukcekmece, Istanbul, Turkey;cDepartment of Physics, Gebze Institute of Technology, 41400 Gebze, Kocaeli, Turkey;dDepartment of Chemistry and Biochemistry, North Dakota State University, Fargo, ND 58108-6050, USA;eDepartment of Materials Science and Engineering, Gebze Institute of Technology, 41400 Gebze, Kocaeli, Turkey |
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| Abstract: | A polythiophene derivative bearing TEMPO radical was synthesized by oxidative chemical polymerization of its monomer. The polymer had a high spin density (2.05 × 1021 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. |
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| Keywords: | Polythiophene TEMPO Electrode Rechargeable Battery |
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