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Galvanostatic characteristics of natural pyrite in cycling for DMC-LiAn electrolytes

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Abstract

The specific characteristics of natural pyrite (FeS2) are investigated using a galvanostatic cycling method. The investigation is carried out for electrolytes consisting of dimethylcarbonate (DMC) and a lithium salt (LiBF4, LiClO4, or LiN(CF3SO2)2). It is shown that the specific capacitance of FeS2 and its stability during cycling depend on the concentration and the nature of a lithium salt anion. The greatest efficiency of the galvanostatic cycling of FeS2 is achieved for the DMC-LiClO4 and DMC-LiN(CF3SO2)2 electrolytes in salt concentrations in the range of 0.1–0.2 molar fractions.

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Authors and Affiliations

  1. Interagency Department of Electrochemical Energy Systems, National Academy of Sciences of Ukraine, bul. Vernadskogo 38a, Kiev, 03680, Ukraine

    N. I. Globa, V. A. Sirosh & V. D. Prisyazhniy

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  1. N. I. Globa
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  2. V. A. Sirosh
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  3. V. D. Prisyazhniy
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Correspondence to N. I. Globa.

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Original Russian Text © N.I. Globa, V.A. Sirosh, V.D. Prisyazhniy, 2015, published in Elektronnaya Obrabotka Materialov, 2015, No. 5, pp. 72–79.

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Globa, N.I., Sirosh, V.A. & Prisyazhniy, V.D. Galvanostatic characteristics of natural pyrite in cycling for DMC-LiAn electrolytes. Surf. Engin. Appl.Electrochem. 51, 483–490 (2015). https://doi.org/10.3103/S1068375515050038

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