Thermal Conductivity of Alkali Metal Chlorides: Calculation with Molecular Dynamics Method

Zakiryanov, Dmitry; Tkachev, N. K.

doi:10.1134/s0018151x20010228

Cited by 3 publications

(3 citation statements)

References 9 publications

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“…The thermal conductivity of molten salt mainly comes from the thermal vibration caused by the short‐range order of liquid molecules and ionic translation or diffusion caused by ionic transport [46] . The excessive thermal conductivity leads to overheating of molten salt, conversion of electric energy into heat energy and reduction of coulomb efficiency.…”

Section: Resultsmentioning

confidence: 99%

“…Thermal conductivity (W m À 1 K À The thermal conductivity of molten salt mainly comes from the thermal vibration caused by the short-range order of liquid molecules and ionic translation or diffusion caused by ionic transport. [46] The excessive thermal conductivity leads to overheating of molten salt, conversion of electric energy into heat energy and reduction of coulomb efficiency. On the contrary, the low thermal conductivity cannot exchange heat quickly, which is not conducive to increasing temperature and heating, and limits the large-scale application of LMB.…”

Section: Electrolyte Ionic Conductivity (Ohmmentioning

confidence: 99%

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Design of Refined Quaternary Electrolyte LiF−LiCl−LiBr−LiI Used for the Liquid Metal Battery

Zhao,

Guo,

et al. 2023

ChemPhysChem

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The advanced electrolyte of liquid metal battery should have low melting point, low ionic solubility, low viscosity, high electric and thermal conductivities, and a suitable density between anode and cathode for declining the operating temperature and realizing the goal of saving‐energy. In this study, an excellent quaternary LiF−LiCl−LiBr−LiI (9.1 : 30.0 : 21.7 : 39.2) electrolyte is refined by using thermodynamic models to balance various properties of LiX (X=F, Cl, Br, I) and meet the requirement of advanced electrolyte of liquid metal battery. The refined properties of electrolyte correspond to 2.398 g/cm3 for density, 0.286 mol% for solubility, 4.486 Ohm−1 cm−1 for ionic conductivity, and 0.609 W m−1 for thermal conductivity. The measured melting point is 609.1 K, which is lower than the current operating temperature of 723 K for the lithium‐based liquid metal battery. The refined electrolyte consisted by quaternary halide molten‐salt provides important references for preparing the advanced liquid metal battery.

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Section: Resultsmentioning

confidence: 99%

Section: Electrolyte Ionic Conductivity (Ohmmentioning

confidence: 99%

Design of Refined Quaternary Electrolyte LiF−LiCl−LiBr−LiI Used for the Liquid Metal Battery

Zhao,

Guo,

et al. 2023

ChemPhysChem

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“…Most theoretical models predict a negative thermal conductivity temperature dependence of molten salts [27][28][29][30][31]. This is due to an increase in the distance between ions, whose length is expected to grow with temperature due to the positive thermal expansion coefficient of molten salts, reducing the number of collisions between ions and decreasing heat transfer.…”

Section: Thermal Conductivitymentioning

confidence: 99%

Thermal Conductivity of FLiNaK in a Molten State

Rudenko

Redkin²,

Il’ina³

et al. 2022

Materials

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Although the thermal conductivity of molten salt mixtures is of interest for many potential technological applications, precise values are often hard to obtain. In this study, the thermal diffusivity of FliNaK was studied in a molten state using the laser flash method and found to be very slightly dependent on temperature. The heat capacity of FliNaK was measured using the DSC method. There was a minor difference between our results and data from the literature. From calculations based on thermal diffusivity, density and heat capacity values, thermal conductivity was shown to decrease with temperature.

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Enhanced thermal transport at metal/molten salt interface in nanoconfinement: A molecular dynamics study

Liang

Pan

Wang

et al. 2022

Journal of Molecular Liquids

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Thermal Conductivity of Alkali Metal Chlorides: Calculation with Molecular Dynamics Method

Cited by 3 publications

References 9 publications

Design of Refined Quaternary Electrolyte LiF−LiCl−LiBr−LiI Used for the Liquid Metal Battery

Design of Refined Quaternary Electrolyte LiF−LiCl−LiBr−LiI Used for the Liquid Metal Battery

Thermal Conductivity of FLiNaK in a Molten State

Enhanced thermal transport at metal/molten salt interface in nanoconfinement: A molecular dynamics study

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