A novel process for preparing molten salt/expanded graphite composite phase change blocks with good uniformity and small volume expansion

Liu, Junwan; Wang, Qianhao; Ling, Ziye; Fang, Xiaoming; Zhang, Zhengguo

doi:10.1016/j.solmat.2017.05.046

Cited by 61 publications

(13 citation statements)

References 39 publications

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“…In liquid phase the homogeneity of the PCM module decreases, and even worse, safety risks rise because of the build-up of leaked, combustible PCM. A solution could be microencapsulation, but high costs [96], the required laborious procedures [97] and the change in volume during temperature variations [98] reduce its applicability. Chen et al [99] proposed a PCM with high thermal conductivity and a solid-solid phase change, enhanced with fins to further increase thermal performance.…”

Section: Pcm-based Btmsmentioning

confidence: 99%

Battery Thermal Management Systems: Current Status and Design Approach of Cooling Technologies

Buidin

Mariașiu

2021

Energies

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In the current context of transition from the powertrains of cars equipped with internal combustion engines to powertrains based on electricity, there is a need to intensify studies and research related to the command-and-control systems of electric vehicles. One of the important systems in the construction of an electric vehicle is the thermal management system of the battery with the role of optimizing the operation of the battery in terms of performance and life. The article aims to critically analyze the studies and research conducted so far related to the type, design and operating principles of battery thermal management systems (BTMSs) used in the construction of various shaped Li-ion batteries, with focus on cooling technologies. The advantages and disadvantages of the individual components, as well as of the proposed BTM solutions, are extensively investigated, with regard also to the adaptability of these systems to the different Li-ion battery shapes. The information thus synthesized provides the necessary and important information and proposes future directions in research to those interested in this topic to be used to increase the efficiency of the thermal management systems of the battery (and with it the global efficiency of the electric vehicle).

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Section: Pcm-based Btmsmentioning

confidence: 99%

Battery Thermal Management Systems: Current Status and Design Approach of Cooling Technologies

Buidin

Mariașiu

2021

Energies

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“…In the porous SiO 2 -based composite PCMs, functional group types of PCMs and SiO 2 both have significant effects on the phase change behaviors of PCMs. To clarify the phase change mechanisms of different PCMs confined in SiO 2 , Liu et al. (2017a ) introduced three types of PCMs into mesoporous silica (MS), including octodecane (OCC) with -CH 3 , octadecanol (OCO) with –OH, and stearic acid (SA) with -COOH ( Figure 4 A).…”

Section: Silica-based Composite Pcms For Thermal Energy Storagementioning

confidence: 99%

Toward Tailoring Chemistry of Silica-Based Phase Change Materials for Thermal Energy Storage

et al. 2020

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Summary Efficient thermal energy harvesting using phase change materials (PCMs) has great potential for thermal energy storage and thermal management applications. Benefiting from these merits of pore structure diversity, convenient controllability, and excellent thermophysical stability, SiO 2 -based composite PCMs have comparatively shown more promising prospect. In this regard, the microstructure-thermal property correlation of SiO 2 -based composite PCMs is still unclear despite the significant achievements in structural design. To enrich the fundamental understanding on the correlations between the microstructure and the thermal properties, we systematically summarize the state-of-the-art advances in SiO 2 -based composite PCMs for tuning thermal energy storage from the perspective of tailoring chemistry strategies. In this review, the tailoring chemistry influences of surface functional groups, pore sizes, dopants, single shell, and hybrid shells on the thermal properties of SiO 2 -based composite PCMs are systematically summarized and discussed. This review aims to provide in-depth insights into the correlation between structural designs and thermal properties, thus showing better guides on the tailor-made construction of high-performance SiO 2 -based composite PCMs. Finally, the current challenges and future recommendations for the tailoring chemistry are also highlighted.

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“…Supporting material used in ss-composites studied so far can be classified into three main groups: Carbon-based supporting materials, such as expanded graphite and graphite foams [ 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 ]. They have proven to be compatible with nitrites and chlorides and have high salt absorption capacity (>85 wt.%).…”

Section: Introductionmentioning

confidence: 99%

Li4(OH)3Br-Based Shape Stabilized Composites for High-Temperature TES Applications: Selection of the Most Convenient Supporting Material

et al. 2021

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Peritectic compound Li4(OH)3Br has been recently proposed as phase change material (PCM) for thermal energy storage (TES) applications at approx. 300 °C Compared to competitor PCM materials (e.g., sodium nitrate), the main assets of this compound are high volumetric latent heat storage capacity (>140 kWh/m3) and very low volume changes (<3%) during peritectic reaction and melting. The objective of the present work was to find proper supporting materials able to shape stabilize Li4(OH)3Br during the formation of the melt and after its complete melting, avoiding any leakage and thus obtaining a composite apparently always in the solid state during the charge and discharge of the TES material. Micro-nanoparticles of MgO, Fe2O3, CuO, SiO2 and Al2O3 have been considered as candidate supporting materials combined with the cold-compression route for shape-stabilized composites preparation. The work carried out allowed for the identification of the most promising composite based on MgO nanoparticles through a deep experimental analysis and characterization, including chemical compatibility tests, anti-leakage performance evaluation, structural and thermodynamic properties analysis and preliminary cycling stability study.

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A novel process for preparing molten salt/expanded graphite composite phase change blocks with good uniformity and small volume expansion

Cited by 61 publications

References 39 publications

Battery Thermal Management Systems: Current Status and Design Approach of Cooling Technologies

Battery Thermal Management Systems: Current Status and Design Approach of Cooling Technologies

Toward Tailoring Chemistry of Silica-Based Phase Change Materials for Thermal Energy Storage

Li4(OH)3Br-Based Shape Stabilized Composites for High-Temperature TES Applications: Selection of the Most Convenient Supporting Material

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