Application of polymer-based phase change materials in thermal safety management of power batteries

Wang, Weixuan; Li, Chuanchang; Zeng, Xiaoliang; Chen, Jian; Sun, Rong

doi:10.1016/j.est.2022.105646

Cited by 29 publications

(13 citation statements)

References 182 publications

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“…In colder climates, low temperatures significantly impair the capacity of LIBs, consequently diminishing their overall lifespan. Conversely, in hot summer, elevated ambient temperatures lead to substantial heat generation within LIBs, particularly during sustained discharge processes . This elevated heat production poses a significant threat to both the safety and the longevity of LIBs.…”

Section: Resultsmentioning

confidence: 99%

“…Conversely, in hot summer, elevated ambient temperatures lead to substantial heat generation within LIBs, particularly during sustained discharge processes. 42 This elevated heat production poses a significant threat to both the safety and the longevity of LIBs. Consequently, it is imperative to prioritize the development of innovative thermal management materials to ensure efficient and secure functioning of these batteries.…”

Section: Photothermal Energy Conversion Propertymentioning

confidence: 99%

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Flexible and Thermally Conductive Phase-Change Films with a Two-Level Network for Dual-Mode Thermal Management of Batteries

Liu,

He,

Jiang

et al. 2024

ACS Sustainable Chem. Eng.

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Phase-change materials (PCMs) are extensively employed for battery thermal management, owing to their significant thermal storage capacity and appropriate temperature range. Nevertheless, their limitations in terms of flexibility, thermal conductivity, and susceptibility to leakage restrict their effective temperature control. Here, a kind of flexible and thermally conductive phase-change film (TCPCF) with a two-level heat conduction network is prepared, which is composed of phase-change microparticles and graphene nanosheets in the network of polyurethane. The resulting TCPCF demonstrates remarkable flexibility, sufficient latent heat of 97 J/g, high thermal conductivity of 1.77 W/m•K, and exceptional resistance to leakage (<1%) at 65 °C. Furthermore, TCPCF facilitates effective thermal management of Li-ion batteries (LIBs) in diverse environmental conditions. Specifically, in cold environments, the outstanding photothermal conversion capability of TCPCF expedites the warming of LIBs, resulting in a 15.8% increase in battery capacity. In hot environments, TCPCF can reduce LIBs operating temperatures by 15 °C. Consequently, this research presents a promising strategy for enhancing the thermal management of systems with analogous preheating and heat dissipation needs.

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Section: Resultsmentioning

confidence: 99%

Section: Photothermal Energy Conversion Propertymentioning

confidence: 99%

Flexible and Thermally Conductive Phase-Change Films with a Two-Level Network for Dual-Mode Thermal Management of Batteries

Liu,

He,

Jiang

et al. 2024

ACS Sustainable Chem. Eng.

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“…Since electronic devices often generate heat where excessive heat cause damage and dysfunctionality of the devices leading to reduced and poor performance and safety issues. [127][128][129] While the conventional cooling systems are usually energy consuming and bulky in size and weight, researchers investigated the utilisation of PCMs in electronic devices such as mobile phones, batteries to keep temperature fluctuation to a minimum by absorbing or releasing excess heat as needed. [115,[130][131][132] So PCMs are much demanded especially for small volume, small space or portable electronic devices, such as phones, lap-tops, MEMs chips and other portable detective equipment.…”

Section: Electronic Devicesmentioning

confidence: 99%

Recent Progress in Polyethylene‐enhanced Organic Phase Change Composite Materials for Energy Management

Wu,

Yeo,

Wang

et al. 2023

Chemistry An Asian Journal

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Phase Change Materials (PCMs) are utilized to regulate temperature and store thermal energy in various industries such as infrastructure, electronics, solar power, and more. However, they face several limitations, such as leakage, poor thermal properties, incompatibility, as well as high flammability. Polyethylene (PE) is one of many polymers explored to enhance the desirable properties of PCMs, due to their versatile properties such as high strength, durability, chemical resistance, and low cost. The combination of PCMs and PE can be used to create composite materials, through micro/nano-encapsulation, melt-blending, formation of composites and with proper additives. They create enhanced thermal energy storage properties and in the meantime, benefited from the mechanical properties of the PE. This review provides a concise summary of the recent developments regarding PE-enhanced PCMs and provides insights into possible topics for further investigation. We summarised enhancement methods based on commonly adopted types of PEs, such as encapsulation, melt-blending, hot pressing, extrusion, and 3D printing. We then elaborate on how these PE-PCM composites are effectively utilised for heat management applications and the potential future directions in energy-saving buildings, electronic devices, and energy storage systems.

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“…To reduce these potential risks, manufacturers have taken various measures, such as using strong battery casings, designing shock-absorbing structures, optimizing the layout and connection methods of battery internal components, and implementing strict safety testing and certification standards [14] . In addition, the impact of external shock and vibration should also be considered in the design and manufacture of vehicles to ensure the safety performance and reliability of the battery [15] .…”

Section: External Shock and Vibration (I) Risk Of Fire And Explosionmentioning

confidence: 99%

Analysis of Potential Causes of Safety Failure of New Energy Vehicle Power Batteries

Xiang¹

2023

JERA

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The aim of this paper is to analyze the potential reasons for the safety failure of batteries for new-energy vehicles. Firstly, the importance and popularization of new energy batteries are introduced, and the importance of safety failure issues is drawn out. Then, the composition and working principle of the battery is explained in detail, which provides the basis for the subsequent analysis. Then, the potential impacts of factors such as overcharge and over-discharge, high and low temperature environments, internal faults, and external shocks and vibrations on the safety of the batteries are analyzed. Finally, some common safety measures and solutions are proposed to improve the safety of new energy batteries, in hopes of improving the safety of batteries for new-energy vehicle.

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Application of polymer-based phase change materials in thermal safety management of power batteries

Cited by 29 publications

References 182 publications

Flexible and Thermally Conductive Phase-Change Films with a Two-Level Network for Dual-Mode Thermal Management of Batteries

Flexible and Thermally Conductive Phase-Change Films with a Two-Level Network for Dual-Mode Thermal Management of Batteries

Recent Progress in Polyethylene‐enhanced Organic Phase Change Composite Materials for Energy Management

Analysis of Potential Causes of Safety Failure of New Energy Vehicle Power Batteries

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