Energy storage enhancement of paraffin with a solar-absorptive rGO@Ni film in a controllable magnetic field

Yan, Shengnan; Li, Zhenggui; Liu, Xiaobing; Chen, Fang; Li, Wangxu; Cheng, Jie

doi:10.1016/j.enconman.2021.114938

Cited by 15 publications

(5 citation statements)

References 53 publications

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“…Among various solar energy utilization methods, solar-thermal energy conversion is the most direct and effective way. − Therefore, solar-thermal energy conversion materials integrating solar-thermal materials and PCMs are particularly important to improve the utilization efficiency of solar energy. Solar-thermal materials are capable of absorbing the solar spectrum in a wide range of bands, thus exhibiting excellent absorption and conversion ability in these bands. − For example, some metallic nanoparticles have strong absorption and conversion ability of sunlight; however, they are usually blended with other photosensitive materials to further boost the absorption range of solar spectrum because single metallic nanoparticles can only absorb partial band range of the solar spectrum. ,,, In addition, some semiconductor materials (such as copper sulfide, titanium semiconductor) have shown promising application prospects in the solar-thermal conversion field in recent years due to simple synthesis, low cost, photodegradation resistance, and adjustable absorption spectrum. ,,, Compared to metallic nanoparticles and semiconductor materials, carbon materials exhibit a wider range of spectral absorption and higher ability of absorption and transformation. − In this section, we mainly review the research advances in PCM-based solar-thermal conversion materials for thermal energy storage in recent years (Table ), aiming to provide in-depth understanding and constructive guidance for the development of high-performance solar-thermal conversion composite PCMs.…”

Section: Advanced Pcms For Interdisciplinary Applicationsmentioning

confidence: 99%

“…Graphene and its derivatives . Graphene, a two-dimensional (2D) honeycomb material composed of covalently bonded sp 2 -hybridized carbon atoms, exhibits an extremely high thermal conductivity of over 5000 W/m·K in plane. ,,, The intrinsic low thermal conductivity of pristine PCMs prevents the rapid heat spreading within PCMs, and the resulting low energy storage/release rates reduce the solar-thermal conversion efficiency. Graphene is usually introduced into matrices or PCMs to improve thermal conductivity and develop solar-thermal energy conversion composite PCMs by forming interconnected or anisotropic thermally conductive frameworks due to its large specific surface area, high thermal conductivity, and excellent optical characteristics .…”

Section: Advanced Pcms For Interdisciplinary Applicationsmentioning

confidence: 99%

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Phase Change Thermal Storage Materials for Interdisciplinary Applications

et al. 2023

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Functional phase change materials (PCMs) capable of reversibly storing and releasing tremendous thermal energy during the isothermal phase change process have recently received tremendous attention in interdisciplinary applications. The smart integration of PCMs with functional supporting materials enables multiple cutting-edge interdisciplinary applications, including optical, electrical, magnetic, acoustic, medical, mechanical, and catalytic disciplines etc. Herein, we systematically discuss thermal storage mechanism, thermal transfer mechanism, and energy conversion mechanism, and summarize the state-of-the-art advances in interdisciplinary applications of PCMs. In particular, the applications of PCMs in acoustic, mechanical, and catalytic disciplines are still in their infancy. Simultaneously, in-depth insights into the correlations between microscopic structures and thermophysical properties of composite PCMs are revealed. Finally, current challenges and future prospects are also highlighted according to the up-to-date interdisciplinary applications of PCMs. This review aims to arouse broad research interest in the interdisciplinary community and provide constructive references for exploring next generation advanced multifunctional PCMs for interdisciplinary applications, thereby facilitating their major breakthroughs in both fundamental researches and commercial applications.

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Section: Advanced Pcms For Interdisciplinary Applicationsmentioning

confidence: 99%

Section: Advanced Pcms For Interdisciplinary Applicationsmentioning

confidence: 99%

Phase Change Thermal Storage Materials for Interdisciplinary Applications

et al. 2023

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“…16 Compared with these systems, PCM cooling as a passive cooling method can achieve an excellent temperature controlling effect owing to unique advantages such as low cost, wide source, and high latent heat values. 17,18 Nevertheless, it still has some drawbacks, for example, easy leakage, poor mechanical properties, and low thermal conductivity. Generally, to improve the thermal conductivity of composite phase change materials (CPCMs), high-thermal conductivity materials such as metal powder, 19 graphene, 20 and expanded graphite (EG) 21 are added.…”

Section: Introductionmentioning

confidence: 99%

“…Because air cooling and liquid cooling systems for battery modules as active cooling methods usually require a lot of auxiliary equipment and space, it is difficult to satisfy the high-integration volume requirements of electric vehicles . Compared with these systems, PCM cooling as a passive cooling method can achieve an excellent temperature controlling effect owing to unique advantages such as low cost, wide source, and high latent heat values. , …”

Section: Introductionmentioning

confidence: 99%

Investigation on the Thermal Contact Resistance Mechanism of a Composite Phase Change Material for Battery Thermal Management

Deng

Liang³

et al. 2023

ACS Appl. Energy Mater.

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Composite phase change materials as passive thermal management systems have great potential application in power battery modules, but they are still limited by some drawbacks such as easy leakage, high rigidity, and low thermal conductivity. In this study, an excellent antileakage flexible composite phase change material has been prepared and utilized in the battery module. Styrene–butadiene–styrene and ethylene vinyl acetate with a synergistic effect are utilized to improve the antileakage and flexibility properties, which are beneficial to improve the thermal management effect of the battery module. Particularly, the mechanism of thermal contact resistance between the phase change material and battery module is deeply analyzed; the experimental results revealed that the maximum temperature and temperature difference can be maintained within 46.5 and 3.5 °C at 3C discharge rate, respectively. It indicates that the antileakage flexible CPCM can not only form a closer contact with the batteries but also exhibit excellent temperature controlling capacity, especially at a high discharge rate. This study can provide new insights into the decrease of the thermal contact resistance in the battery module; it will be suitable for other dynamic equipment such as energy storage power stations and firefighting power systems.

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“…The thermal conductivity of paraffin can be modified by adding heat conductive additives. Carbon materials are part of important reinforcements in thermal energy storage [31][32][33]. Carbon nanotubes have good thermal conductivity.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Thermal Characterization of Hollow Graphite Fibers/Paraffin Composite Phase Change Material

et al. 2022

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Paraffin is one of the most common and promising phase change materials to store and release thermal energy. The inadequacy of paraffin lies in its low thermal conductivity, which affects its further application on thermal energy storage. In this work, hollow fibers derived from pitch were spun. The graphitization (treated at 2773 K under argon atmosphere) induced the carbon atom arrangement and lattice order development, which endowed the hollow graphite fibers (HGFs) with good graphite structure. The HGFs applied as thermal additives into paraffin significantly improved its thermal conductivity. The high thermal conductivity of the HGFs/paraffin composite was achieved up to 2.50 W/(m·K) along the fiber axis, which displayed an over 680% enhancement as compared with that of the pure paraffin. The HGFs displayed significant improvement of the heat transfer rate and heat flow of paraffin, which indicated the promising potential application of the HGFs/paraffin PCM in thermal energy storage systems.

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Energy storage enhancement of paraffin with a solar-absorptive rGO@Ni film in a controllable magnetic field

Cited by 15 publications

References 53 publications

Phase Change Thermal Storage Materials for Interdisciplinary Applications

Phase Change Thermal Storage Materials for Interdisciplinary Applications

Investigation on the Thermal Contact Resistance Mechanism of a Composite Phase Change Material for Battery Thermal Management

Preparation and Thermal Characterization of Hollow Graphite Fibers/Paraffin Composite Phase Change Material

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