Abstract
The paper presents the results of studies of the structural, thermal, and transport properties of solid composite electrolytes (1 – x)(C4H9)3CH3NBF4–xCND (where CND are nanodispersed diamonds, 0 ≤ x < 1, x is the mole fraction). It was shown by the Pawley method that the crystal structure of the low-temperature (C4H9)3CH3NBF4 phase is described by the space symmetry group P42/ncm. The addition of an inert nanodiamond additive led to an increase in the electric conductivity of the composite electrolyte by four orders of magnitude to 1.3 × 10–3 S/cm at 145°C and at x = 0.98. The theoretical dependences adequately describe the experimental data in the concentration range 0 ≤ x ≤ 0.99 at temperatures of 84 and 127°C.
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The study was supported by the Russian Science Foundation, project no. 20-13-00302.
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Translated by L. Smolina
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Based on the materials reported at the Second Young Scientists School “Electrochemical Devices: Processes, Materials, Technologies” (Novosibirsk, October 28–30, 2022).
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Stebnitsky, I.A., Uvarov, N.F. & Mateyshina, Y.G. Synthesis and Study of the Physicochemical Properties of Composite Solid Electrolytes (C4H9)3CH3NBF4–Cnanodiamonds. Russ J Electrochem 60, 18–24 (2024). https://doi.org/10.1134/S1023193524010105
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DOI: https://doi.org/10.1134/S1023193524010105