A lightweight and high thermal performance graphene heat pipe

Ya, Liu; Chen, Shujing; Fu, Yifeng; Wang, Nan; Mencarelli, Davide; Pierantoni, Luca; Lu, Hongbin; Liu, Johan

doi:10.1002/nano.202000195

Cited by 13 publications

(4 citation statements)

References 31 publications

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“…Figure 6f compared the specific thermal conductivity of the rGO/PVA-based TPHTD with different thermal management materials and devices. [9,15,[41][42][43][44][45][46][47][48][49][50][51][52] By combining the advantages of lightweight of rGO/PVA casing material and high thermal conductivity of two-phase heat transfer, the rGO/PVA-based TPHTD generated achieves the highest specific thermal conductivity, up to 5600 W (mKg) −1 .…”

Section: Resultsmentioning

confidence: 99%

“…The other is to use graphene as the casing material and metal frame as the support to prepare TPHTDs. [ 15 ] Such an approach still has not yet been realized to lightweight all graphene‐based TPHTDs. To achieve all graphene‐based TPHTDs with high thermal performance, an alternative approach is needed to form reliable binding between graphene nanosheets at nanoscale and achieve desired geometry of devices at macroscale.…”

Section: Introductionmentioning

confidence: 99%

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Lightweight All Graphene‐Based Two‐Phase Heat Transport Devices

Zheng

Shen

Wang

et al. 2023

Adv Materials Inter

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interactions of weak van der Waals force to form thick graphene-based film, and the films are not strong enough to withstand tensile and compression due to weak connection. [1] Past efforts in solving this problem were focused on improving the strength of graphene-based films through incorporating a polymer as a binder. [2][3][4] While this strategy has helped improve the mechanical performance of graphene-based films, it leads to the deterioration of other properties, such as thermal properties. The use of polymer binders greatly reduces the thermal conductivity of graphene-based film due to the low thermal conductivity of polymers and the high inherent interfacial thermal resistance between graphene and polymers. [5,6] To improve the thermal conductivity of graphene-based films, one effective solution is to incorporate polymers with high intrinsic thermal conductivity, [7] but the improvement is limited to a certain level.In order to generate graphene-based systems with high thermal conductivity, graphene films can be used as casing materials to prepare a two-phase heat transport device (TPHTD). Such a device mainly relies on the phase change heat transfer process and takes advantage of both the large latent heat and the fast flow of the vapor from the evaporator to the condenser to realize efficient heat transfer, thus achieving high thermal conductivity, enabling its extensive use in thermal management devices. [8][9][10] So far, graphene has been used in two different ways for the TPHTD. In one way, graphene is coated on the inner wall of the metal-based casing in the TPHTD. [11][12][13][14] While this approach improves the thermal conductivity of the TPHTD due to good-wettability and low flow resistance of working medium on the surface of graphene, the resulting device is still heavy due to the metal-based casing, which does not take advantage of the lightweight property of graphene. The other is to use graphene as the casing material and metal frame as the support to prepare TPHTDs. [15] Such an approach still has not yet been realized to lightweight all graphene-based TPHTDs. To achieve all graphene-based TPHTDs with high thermal performance, an alternative approach is needed to form reliable binding between graphene nanosheets at nanoscale and achieve desired geometry of devices at macroscale. Graphene-based composites show great potential in the development of lightweight functional devices and systems, and polymers are usually used as binders to enhance the mechanical properties of these composites. Due to the low thermal conductivity of the polymer and the high inherent interfacial thermal resistance between polymer and graphene, however, the developed devices and systems generally possess low thermal conductivity, which seriously limits their further thermal-related applications. Here, a lightweight two-phase heat transport device (TPHTD) based on a vapor-liquid phase transition-based heat transfer by using a graphene-based composite material as the casing is generated. The graphene-based TPHTD has h...

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Lightweight All Graphene‐Based Two‐Phase Heat Transport Devices

Zheng

Shen

Wang

et al. 2023

Adv Materials Inter

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“…The work to enhance its thermal conductivity has become the core issue for researches. Liu et al designed a lightweight graphene MHP whose thermal conductivity is about 3 times that of copper heat pipes. Lee et al studied the high thermal conductivity of Ti heat pipes for cooling the space nuclear fission power system, and it turned out that the thermal resistance of Ti heat pipes was only 0.019 °C/W.…”

Section: Development Status Of Micro Heat Pipesmentioning

confidence: 99%

A Review of MHP Technology and Its Research Status in Cooling of Li-Ion Power Battery and PEMFC

Chang

et al. 2020

Energy Fuels

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A lithium-ion (Li-ion) power battery and proton exchange membrane fuel cell (PEMFC) have an excellent electrical conversion performance, which makes them a hot spot in the new energy power research field. Electricity is generated inside the battery through an electrochemical reaction, during which time a large amount of heat is also generated. The ideal operating temperature of a Li-ion battery and PEMFC falls into a small range, but the operations require a high temperature uniformity. Efficient cooling technology can be used to timely discharge the heat generated and control the temperature field change inside the battery, thus ensuring the battery's efficient and stable performance. The micro heat pipe (MHP) is currently a more efficient passive cooling equipment with high heat fluxes and a high thermal conductivity through the phase change heat transfer of working fluid. The development and research status of an MHP and its application in the cooling of a Li-ion power battery and PEMFC are reviewed in this paper.

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“…Since the successful separation of a few sheets of graphene from graphite using scotch tape in 2004, graphene has gradually entered the life of human beings [1]. Despite of the fact that more than a decade has passed, it is still a hot research topic owing to its extraordinary thermal, electrical, mechanical, and optical properties [2][3][4][5]. Graphene has the potential to be used in many fields such as electronics [6], optoelectronics [7], and electrochemical batteries and composites among many other applications [8].…”

Section: Introductionmentioning

confidence: 99%

Graphene-Based Films: Fabrication, Interfacial Modification, and Applications

et al. 2021

Self Cite

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Graphene-based film attracts tremendous interest in many potential applications due to its excellent thermal, electrical, and mechanical properties. This review focused on a critical analysis of fabrication, processing methodology, the interfacial modification approach, and the applications of this novel and new class material. Strong attention was paid to the preparation strategy and interfacial modification approach to improve its mechanical and thermal properties. The overview also discussed the challenges and opportunities regarding its industrial production and the current status of the commercialization. This review showed that blade coating technology is an effective method for industrial mass-produced graphene film with controllable thickness. The synergistic effect of different interface interactions can effectively improve the mechanical properties of graphene-based film. At present, the application of graphene-based film on mobile phones has become an interesting example of the use of graphene. Looking for more application cases is of great significance for the development of graphene-based technology.

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A lightweight and high thermal performance graphene heat pipe

Cited by 13 publications

References 31 publications

Lightweight All Graphene‐Based Two‐Phase Heat Transport Devices

Lightweight All Graphene‐Based Two‐Phase Heat Transport Devices

A Review of MHP Technology and Its Research Status in Cooling of Li-Ion Power Battery and PEMFC

Graphene-Based Films: Fabrication, Interfacial Modification, and Applications

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