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New Electrochemically Active Highly Sulfurized Polyconjugated Polymers

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Abstract

The electrochemical activity of new highly sulfurized polyconjugated polymers is studied. The polymers, polythienothiophene, poly(4,5,6,7-tetrathieno-4,5,6,7-tetrahydro-2,3-dehydrobenzothiophene), poly(6-methylthieno[2,3-b]pyridine-4-thione-5-thiol), and poly(6H-thieno[2,3-b]-azepine-6,7(8H)-dithione) are obtained in a deep sulfurization of polyethylene, polystyrene, and poly(5-vinyl-2-methylpyridine) by elemental sulfur. Employed as active cathodic material in lithium batteries, these polymers ensure their prolonged cycling with specific discharge capacity of up to 339 mA h/g. The effect of the conducting additive and electrolyte on the energy capacity and cycling of polymer cathodes in lithium batteries is discussed.

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Authors and Affiliations

  1. Siberian Division, Russian Academy of Sciences, Favorsky Irkutsk Institute of Chemistry, Irkutsk, Russia

    B. A. Trofimov, G. F. Myachina, S. A. Korzhova, A. G. Mal'kina, L. V. Sokolyanskaya & T. I. Vakul'skaya

  2. Moltech Corporation, Tucson, AZ, USA

    Yu. V. Mikhailik & T. A. Skotheim

Authors
  1. B. A. Trofimov
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  2. G. F. Myachina
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  3. S. A. Korzhova
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  4. A. G. Mal'kina
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  5. L. V. Sokolyanskaya
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  6. T. I. Vakul'skaya
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  7. Yu. V. Mikhailik
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  8. T. A. Skotheim
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Trofimov, B.A., Myachina, G.F., Korzhova, S.A. et al. New Electrochemically Active Highly Sulfurized Polyconjugated Polymers. Russian Journal of Electrochemistry 38, 188–192 (2002). https://doi.org/10.1023/A:1016824400335

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  • DOI: https://doi.org/10.1023/A:1016824400335

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