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Electrolytic molybdenum sulfides for thin-layer lithium power sources

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Abstract

The active molybdenum sulfide compound Mo2S3, which should be considered as a cathode material for thin-layer rechargeable power source, has been produced by electrolysis. Using impedance spectroscopy and potential relaxation method after current interruption, the kinetic parameters of lithium intercalation in electrolytic Mo2S3 have been obtained. Activation energy of Li+ migration in electrolyte (13.76 kJ/mol), charge transfer through the Mo2S3 electrode/electrolyte interface (38.8 kJ/mol), and Li+ diffusion in a solid phase (57.3 kJ/mol) have also been established. Taking into account the coefficient data of charge mass transfer in a solid phase and the reaction rate coefficient of charge transfer through the interface electrode/electrolyte within the temperature range 20–50 °C, the stage of Li+ transfer in a solid phase has been determined as a limiting stage for lithium intercalation in electrolytic molybdenum sulfide Mo2S3.

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Acknowledgements

The authors acknowledge with thanks the financial support provided of the Ministry of Education and Science of Ukraine (contract 42040290) and Inter Intel. (USA).

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Authors and Affiliations

  1. Ukrainian State Chemical Technology University, Dnepropetrovsk, 49005, Ukraine

    E. Shembel, R. Apostolova & I. Kirsanova

  2. Enerize Corporation, Inc., Coral Springs, FL, USA

    E. Shembel

  3. National Metallurgical Academy, Dnepropetrovsk, Ukraine

    V. Tysyachny

Authors
  1. E. Shembel
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  2. R. Apostolova
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  3. I. Kirsanova
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  4. V. Tysyachny
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Correspondence to E. Shembel.

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Shembel, E., Apostolova, R., Kirsanova, I. et al. Electrolytic molybdenum sulfides for thin-layer lithium power sources. J Solid State Electrochem 12, 1151–1157 (2008). https://doi.org/10.1007/s10008-007-0463-5

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  • DOI: https://doi.org/10.1007/s10008-007-0463-5

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