scholarly journals Improvement of Electrochemical Stability Using the Eutectic Composition of a Ternary Molten Salt System for Highly Concentrated Electrolytes for Na-Ion Batteries

2021 ◽  
Author(s):  
Jinkwang Hwang ◽  
Ashvini Nair Sivasengaran ◽  
Huan Yang ◽  
Hiroki Yamamoto ◽  
Takashi Takeuchi ◽  
...  
Keyword(s):  
Molten Salt ◽  
Eutectic Composition ◽  
Electrochemical Stability ◽  
Salt System ◽  
Concentrated Electrolytes ◽  
Molten Salt System

Effect of Na3WO3F3 Content on the Liquidus Temperature of NaCl-KCl-Na3WO3F3 Molten Salt System

2014 ◽  
Vol 908 ◽  
pp. 159-162
Author(s):  
Jie Li ◽  
Yang Pei ◽  
Ya Bin Liu ◽  
Yun Gang Li
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Molten Salt ◽  
Liquidus Temperature ◽  
Eutectic Composition ◽  
Eutectic Temperature ◽  
Salt System ◽  
Molten Salt System

The liquidus temperature of molten salt NaCl-KCl-Na3WO3F3 system was measured by differential thermal analysis. The results show that in the molten salt system when XNaCl:XKCl=1:1, XNa3WO3F3<0.6 the liquidus temperature decreased with increase of Na3WO3F3 content; when XNaCl:XKCl=1:1, XNa3WO3F3> 0.6 the liquidus temperature increased with the increase of Na3WO3F3 content; the eutectic temperature is 612.9 °C, the eutectic composition is XNaCl=0.2, XKCl=0.2, XNa3WO3F3=0.6.

Effect of Na2WO4 Content on the Liquidus Temperature of NaCl-KCl-NaF-Na2WO4 Molten Salt System

2014 ◽  
Vol 909 ◽  
pp. 45-49
Author(s):  
Jie Li ◽  
Yang Pei ◽  
Ya Bin Liu ◽  
Yun Gang Li
Keyword(s):  
Phase Transition ◽  
Thermal Analysis ◽  
Transition Temperature ◽  
Molten Salt ◽  
Phase Transition Temperature ◽  
Liquidus Temperature ◽  
Eutectic Composition ◽  
Eutectic Temperature ◽  
Salt System ◽  
Molten Salt System

The liquidus temperature of molten salt NaCl-KCl-NaF-Na2WO4 system was measured by differential thermal analysis. The results show that in the molten salt system when 0.6 eutectic temperature is 542.1 °C and a phase transition temperature is 515.4 °C, eutectic composition become = 0.28, = 0.28, =0.14, = 0.3; when > 0.6, eutectic temperature and a phase transition temperature are respectively 597.7 °C and 495.8 °C, eutectic composition become = 0.12, = 0.12, = 0.06, = 0.7.

Effect of NaWO3F Content on the Liquidus Temperature of NaCl-KCl-NaWO3F Molten Salt System

2014 ◽  
Vol 909 ◽  
pp. 41-44
Author(s):  
Jie Li ◽  
Yang Pei ◽  
Ya Bin Liu ◽  
Yun Gang Li
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Molten Salt ◽  
Liquidus Temperature ◽  
Eutectic Composition ◽  
Eutectic Temperature ◽  
Salt System ◽  
Molten Salt System ◽  
F System

The liquidus temperature of molten salt NaCl-KCl-NaWO3F system was measured by differential thermal analysis. The results show that in the molten salt system when :=1:1, XNaWO3F <0.5 the liquidus temperature decreased with the increase of NaWO3F content; when :=1:1, XNaWO3F>0.5 the liquidus temperature increased with the increase of NaWO3F content; the eutectic temperature is 615.9 °C, the eutectic composition is =0.25, =0.25, XNaWO3F=0.5.

Effect of WO3 Content on the Liquidus Temperature of NaCl-KCl-NaF-WO3 Molten Salt System

2014 ◽  
Vol 909 ◽  
pp. 54-57 ◽  
Author(s):  
Jie Li ◽  
Yang Pei ◽  
Ya Bin Liu ◽  
Yun Gang Li
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Molten Salt ◽  
Liquidus Temperature ◽  
Eutectic Composition ◽  
Eutectic Temperature ◽  
Salt System ◽  
Molten Salt System

The liquidus temperature of molten salt NaCl-KCl-NaF-WO3 system was measured by differential thermal analysis. The results show that in the molten salt system when 0.1379 eutectic temperature is 616.5 °C, eutectic composition is =0.3846, =0.3846, =0.1923, =0.0385; when >0.1379, eutectic temperature is 628.9 °C, eutectic composition is = 0.3390, = 0.3390, =0.1695, = 0.1525.

Effect of Na3WO3F3 Content on the Liquidus Temperature of KCl-Na3WO3F3 Molten Salt System

2014 ◽  
Vol 909 ◽  
pp. 50-53
Author(s):  
Jie Li ◽  
Yang Pei ◽  
Ya Bin Liu ◽  
Yun Gang Li
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Molten Salt ◽  
Liquidus Temperature ◽  
Eutectic Composition ◽  
Eutectic Temperature ◽  
Salt System ◽  
Molten Salt System

The liquidus temperature of molten salt KCl-Na3WO3F3 system was measured by differential thermal analysis. The results show that in the molten salt system when =0.5, <0.5 the liquidus temperature decreased with the increase of Na3WO3F3 content; when =0.5, >0.5 the liquidus temperature increased with the increase of Na3WO3F3 content; the eutectic temperature is 601.8 °C, the eutectic composition is = 0.5, =0.5.

Effect of Na2WO4 Content on the Crystallization Temperature of NaCl-KCl-Na2WO4 Molten Salt System

2014 ◽  
Vol 908 ◽  
pp. 155-158
Author(s):  
Jie Li ◽  
Yang Pei ◽  
Ya Bin Liu ◽  
Yun Gang Li
Keyword(s):  
Phase Transition ◽  
Thermal Analysis ◽  
Transition Temperature ◽  
Molten Salt ◽  
Phase Transition Temperature ◽  
Liquidus Temperature ◽  
Eutectic Composition ◽  
Eutectic Temperature ◽  
Salt System ◽  
Molten Salt System

The Liquidus Temperature of Molten Salt Nacl-Kcl-Na2WO4 System was Measured by Differential Thermal Analysis. the Results Show that, in the Molten Salt System, when XNa2WO4≤0.7 Eutectic Temperature is 555 °C and a Phase Transition Temperature is 512.8 °C, Eutectic Composition Become XNaCl= 0.35, XKCl= 0.35, XNa2WO4= 0.3; when XNa2WO4>0.7, Eutectic Temperature and a Phase Transition Temperature are Respectively 613 °C and 574.4 °C, Eutectic Composition Become XNaCl= 0.1, XKCl= 0.1, XNa2WO4= 0.8.

Molecular Dynamics Simulation Study of the Effect of Ni, Fe, Cu on Cryolite Molten Salt System 78% Na3AlF6-9.5%AlF3-5.0%CaF2-7.5%-Al2O3

2021 ◽  
Vol 1026 ◽  
pp. 39-48
Author(s):  
Han Bing He ◽  
Yu Si Wang ◽  
Ze Xiang Luo ◽  
Jing Zeng
Keyword(s):  
Molecular Dynamics ◽  
Diffusion Coefficient ◽  
Molten Salt ◽  
Diffusion Mechanism ◽  
Research Work ◽  
Dynamics Simulation ◽  
Salt System ◽  
Electrolyte System ◽  
Aluminum Composite ◽  
Molten Salt System

The effect of different additives Ni, Fe, Cu on the structure and properties of electrolyte system 78% Na3AlF6- -9.5%AlF3-5.0%CaF2-7.5%Al2O3 at 1200K and 1.01Mpa was studied by molecular dynamics method. The radial distribution function, coordination number, diffusion coefficient, conductivity, and viscosity of the system were discussed in detail. The results demonstrated that the order of the self-diffusion coefficient of ions in the electrolyte system is: Na+ > F- > O2- > Ca2+ >Al3+. The addition of Ni and Fe connected the free aluminum composite ion groups in the system through fluorine bridges, which enhanced the interaction between Al3+ and Al3+. The addition of Cu weakened the interaction between Al3 + and Al3+ and the F-. The interaction between Al3+ and Na+, [AlF7]4- ionic groups might appeared in the melt system. After adding NiO, Fe2O3, and Cu, the electrical conductivity of the system increased, and the viscosity decreased. The research work revealed the influence of Ni, Fe, Cu on the ion existence form, mobility, inter-ion interaction and diffusion mechanism of cryolite molten salt system, which has important guiding significance for aluminum electrolysis production.

First-principles molecular dynamics investigation on KF-NaF-AlF3 molten salt system

2019 ◽  
Vol 730 ◽  
pp. 587-593 ◽  
Author(s):  
Hui Guo ◽  
Jie Li ◽  
Hongliang Zhang ◽  
Tianshuang Li ◽  
Jiawei Luo ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molten Salt ◽  
First Principles ◽  
Salt System ◽  
Molten Salt System ◽  
First Principles Molecular Dynamics

ChemInform Abstract: Experimental Observations of a Thoria Oxide-Ion Sensor in a Molten Salt System.

ChemInform ◽  
2010 ◽  
Vol 33 (20) ◽  
pp. no-no
Author(s):  
S. X. Li ◽  
S. D. Herrmann
Keyword(s):  
Molten Salt ◽  
Salt System ◽  
Ion Sensor ◽  
Molten Salt System ◽  
Oxide Ion
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