Study on novel molten salt-ceramics composite as energy storage material

Sun, Guoting; Liu, Yafei; Dong, Shuai; Wang, Jinming

doi:10.1016/j.est.2020.101237

Cited by 18 publications

(8 citation statements)

References 21 publications

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“…The obtained measurement results indicated that the salt properties deviate to some extent from the literature data. In [33,59,64], the melting point was given as 142 • C, whereas the one obtained from measurements was 150 • C. The enthalpy of the phase transformation reported in [59] was 80 kJ/kg, while that obtained from measurements was 122 kJ/kg, which increased the heat capacity of TES Unit by about 50% at the same volume of PCM. This confirms the thesis of [30]: in real applications the properties of PCM obtained from measurements should be used because of discrepancies with calculated data.…”

Section: Description Of the Tes Unitmentioning

confidence: 98%

“…Energies 2021, 14, x FOR PEER REVIEW 8 of 18 obtained measurement results indicated that the salt properties deviate to some extent from the literature data. In [33,59,64], the melting point was given as 142 °C, whereas the one obtained from measurements was 150 °C. The enthalpy of the phase transformation reported in [59] was 80 kJ/kg, while that obtained from measurements was 122 kJ/kg, which increased the heat capacity of TES Unit by about 50% at the same volume of PCM.…”

Section: Description Of the Control System With Annmentioning

confidence: 99%

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Application of Phase Change Material and Artificial Neural Networks for Smoothing of Heat Flux Fluctuations

et al. 2021

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The paper presents an innovative method for smoothing fluctuations of heat flux, using the thermal energy storage unit (TES Unit) with phase change material and Artificial Neural Networks (ANN) control. The research was carried out on a pilot large-scale installation, of which the main component was the TES Unit with a heat capacity of 500 MJ. The main challenge was to smooth the heat flux fluctuations, resulting from variable heat source operation. For this purpose, a molten salt phase change material was used, for which melting occurs at nearly constant temperature. To enhance the smoothing effect, a classical control system based on PID controllers was supported by ANN. The TES Unit was supplied with steam at a constant temperature and variable mass flow rate, while a discharging side was cooled with water at constant mass flow rate. It was indicated that the operation of the TES Unit in the phase change temperature range allows to smooth the heat flux fluctuations by 56%. The tests have also shown that the application of artificial neural networks increases the smoothing effect by 84%.

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Section: Description Of the Tes Unitmentioning

confidence: 98%

Section: Description Of the Control System With Annmentioning

confidence: 99%

Application of Phase Change Material and Artificial Neural Networks for Smoothing of Heat Flux Fluctuations

et al. 2021

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“…Since solar power is inconsistent, the most effective way to harness it is through a solar thermal system coupled with heat storage. The energy storage materials at the heart of a thermal storage system include suitable materials, latent heat materials involving phase shifts, and biological heat storage materials (Cingarapu et al, 2015a;Liu and Yang, 2017;Shere et al, 2019;Sun et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

A review of the effects of different parameters on salt-based solar thermal energy storage systems

et al. 2023

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Phase change materials (PCMs) used for thermal energy storage (TES) have shown to be particularly promising, especially in light of the growing need for a wide variety of energy-related applications. This article discusses the usage of packed beds made from phase change materials in solar energy storage devices for variable temperature environments. The primary heating/cooling technologies and associated thermal energy storage difficulties have also been examined from the perspective of engineering applications. The packed bed’s history from a thermodynamic perspective, the temperature dispersion inside the packed bed, and several design factors that influence its performance are all covered in the brief description of the packed bed. Energy and exergy efficacy are the foundations of its analysis. The article delves into numerous thermal energy storage methods, with phase change materials being the primary topic and a beneficial means of storing thermal energy. In addition, phase change materials also keep latent thermal energy during phase transitions at almost constant temperatures.

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“…Molten salts, referred to the melt of inorganic salts, usually come to sight in the form of eutectic system with lower melting point and have wide applications in phase change heat storage 30,31 , material synthesis 32,33 and electrochemical energy storage 34 , etc. Molten salt electrolytes have attracted much attention owing to their nonvolatility, thermal stability over the liquid electrolyte as well as high ionic conductivity achieved since solid-liquid transition occurs.…”

Section: Introductionmentioning

confidence: 99%

Solvent-free and long-cycling garnet-based lithium-metal batteries

Zhang

et al. 2022

Preprint

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Solid-state batteries using ceramic solid electrolytes promise to deliver enhanced energy density and intrinsic safety. However, the challenge of integrating solid electrolytes with electrode materials limits the electrochemical performances. Herein, we report a solvent-free ceramic-based lithium-metal battery with excellent performances at a wide temperature range of 45 to 100°C, enabled by inorganic ternary salt of extreme-low eutectic point. By using garnet electrolyte with molten salts at the electrolyte|cathode interface, the Li||LiFePO4 cells perform a long cycling stably with capacity retention of 81.4% after 1000 cycles at 1 C. High-voltage LiFe0.4Mn0.6PO4 cathodes also deliver good electrochemical performance. Specifically, commercial electrode pieces with high area capacities can be adopted directly in the quasi-solid-state lithium-metal batteries. These superior performances are ascribable to the low melting point, high ionic conductivity and good thermal/electrochemical stability of the ternary salt system. Our findings provide an effective method on fabrication of solid-state batteries towards practical applications.

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Study on novel molten salt-ceramics composite as energy storage material

Cited by 18 publications

References 21 publications

Application of Phase Change Material and Artificial Neural Networks for Smoothing of Heat Flux Fluctuations

Application of Phase Change Material and Artificial Neural Networks for Smoothing of Heat Flux Fluctuations

A review of the effects of different parameters on salt-based solar thermal energy storage systems

Solvent-free and long-cycling garnet-based lithium-metal batteries

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