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Frequency dependence of conductivity of ethylene carbonate based electrolyte for Li-ion battery

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Abstract

Specific cell arrangement corresponding to four probe pouch cell with two reversible current and two indifferent potential electrodes is applied to study the existence of frequency dependence on conductivity of a medium between two potential electrodes, i.e., separator impregnated with electrolyte. It is established that frequency dependence of conductivity for carbonate-based electrolyte solution does exist. Series resistance is found to be in a good agreement by specific value with that reported earlier. Low frequency limit of impedance spectra is a few decimal orders higher than that of series resistance. Both low- and high-frequency resistances increase with the interelectrode distance in agreement with Ohm law.

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Acknowledgments

The present study was financially supported by Samsung SDI Corporation.

We are grateful to Dr. O. V. Levin for his assistance in conducting the experiment.

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Authors and Affiliations

  1. Corporate R&D Center, Samsung SDI Co. Ltd., 575, Shin-dong, Yeongtong-gu, Suwon-si, , Gyeonggi-do, Republic of Korea, 443-731

    S. N. Shkerin, I. A. Profatilova & J. H. Lee

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  1. S. N. Shkerin
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  2. I. A. Profatilova
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  3. J. H. Lee
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Correspondence to S. N. Shkerin.

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Shkerin, S.N., Profatilova, I.A. & Lee, J.H. Frequency dependence of conductivity of ethylene carbonate based electrolyte for Li-ion battery. Ionics 15, 35–42 (2009). https://doi.org/10.1007/s11581-008-0235-y

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  • DOI: https://doi.org/10.1007/s11581-008-0235-y

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