Perspective on interface engineering for capacitive energy storage polymer nanodielectrics

Xie, Yunchuan; Fan, Xing; Zhang, Ying; Zhang, Zhicheng

doi:10.1039/d2cp02783f

Cited by 18 publications

(12 citation statements)

References 97 publications

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“…[135] It is important to note that the ideal Lewis model is more suitable for elaborating the interface state between nanofillers with smooth surfaces and dielectric matrix. [165] However, in reality, defects and surface roughness on the surface of nanoparticles inevitably exist, affecting the resistance and charge distribution and impeding the interface polarization response. [166] To overcome this issue, some modification methods can be used for improvement, such as surface modification and coating of nanofillers.…”

Section: Interface Polarization Effects In Dielectric Modulation Of C...mentioning

confidence: 99%

Fabrication of Advanced Cellulosic Triboelectric Materials via Dielectric Modulation

Wang

Liu

et al. 2023

Advanced Science

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The rapid rise of triboelectric nanogenerators (TENGs), which are emerging energy conversion devices in advanced electronics and wearable sensing systems, has elevated the interest in high-performance and multifunctional triboelectric materials. Among them, cellulosic materials, affording high efficiency, biodegradability, and customizability, are becoming a new front-runner. The inherently low dielectric constant limits the increase in the surface charge density. However, owing to its unique structure and excellent processability, cellulose shows great potential for dielectric modulation, providing a strong impetus for its advanced applications in the era of Internet of Things and artificial intelligence. This review aims to provide comprehensive insights into the fabrication of dielectric-enhanced cellulosic triboelectric materials via dielectric modulation. The exceptional advantages and research progress in cellulosic materials are highlighted. The effects of the dielectric constant, polarization, and percolation threshold on the charge density are systematically investigated, providing a theoretical basis for cellulose dielectric modulation. Typical dielectric characterization methods are introduced, and their technical characteristics are analyzed. Furthermore, the performance enhancements of cellulosic triboelectric materials endowed by dielectric modulation, including more efficient energy harvesting, high-performance wearable electronics, and impedance matching via material strategies, are introduced. Finally, the challenges and future opportunities for cellulose dielectric modulation are summarized.

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Section: Interface Polarization Effects In Dielectric Modulation Of C...mentioning

confidence: 99%

Fabrication of Advanced Cellulosic Triboelectric Materials via Dielectric Modulation

Wang

Liu

et al. 2023

Advanced Science

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“…A dielectric capacitor is an omnipresent device designed to store and transport electrical energy. 10 The main characteristic of a capacitor is its capacitance, i.e. , the amount of electrical energy that can be accumulated.…”

Section: Introductionmentioning

confidence: 99%

“…2 A dielectric capacitor is an omnipresent device designed to store and transport electrical energy. 10 The main characteristic of a capacitor is its capacitance, i.e., the amount of electrical energy that can be accumulated. [11][12][13] The goal of the researchers is to design highly reliable capacitors, that not only separate large coulombic charges on the counterplates but also prevent accidental discharges, and minimize the corruption of the electrodes and dielectric materials.…”

Section: Introductionmentioning

confidence: 99%

Higher hydrogen fractions in dielectric polymers boost self-healing in electrical capacitors

Chaban,

Andreeva

2024

Phys. Chem. Chem. Phys.

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“…With the “dual-carbon” target, China’s clean energy industry has seen a period of rapid development. − As a vital part of clean energy AC–DC conversion, film capacitors have become commonplace in the sectors of solar power manufacturing, wind power generation, and new energy vehicles. , Film capacitors are also extensively utilized in high-power applications because of their short and efficient power output and long cycle life, including high-power home appliances, LED high light illumination, automotive chargers, and charging heaps for new energy vehicles. − Therefore, how to develop film capacitors with high power density is the key to realize energy saving and low-carbon environmental protection . The commonly used dielectric materials for film capacitors mainly include PP, PET, PEN, PPS, and other polymer materials. − A film made of biaxially oriented polypropylene (BOPP) obtained by biaxially stretching PP has the advantages of high breakdown strength and low dielectric loss and is a common dielectric material for commercially available film capacitors.…”

Section: Introductionmentioning

confidence: 99%

Sandwich-Structured PC/PVDF-Based Energy Storage Dielectric with Inorganic Doping to Regulate Electric Field Distribution

Zhang,

Yan,

Zhang

et al. 2024

J. Phys. Chem. C

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With the goal of "dual carbon", China's clean energy industry has witnessed a rapid development period. As a key component of AC−DC conversion of clean energy, the usage of film capacitors is widespread in many fields such as photovoltaic power generation, wind power generation, and new energy vehicles. Therefore, how to develop film capacitors with high power density is the key to realizing energy savings and low-carbon environmental protection. In this paper, a P-X-P sandwichstructured composite dielectric with polycarbonate (PC) as the outer insulation layer and x wt % TiO 2 −PC/polyvinylidene fluoride as the middle polarization layer was designed and prepared by solution calendering and a hot pressing process, and its dielectric properties and insulation performance were optimized synergistically. It was found that when the TiO 2 content of the intermediate layer was increased to 3 wt %, the P-3-P sandwichstructured film obtained outstanding energy storage capacity (U e ∼ 11.69 J/cm 3 , η ∼ 93.86%) at a high field strength of 510 kV/mm. At the same time, the P-3-P sandwich-structured film has good charge−discharge characteristics (1.74 μs, 1.01 MW/cm 3 ). It has a rapid pace of energy release and outstanding cycle stability after 50,000 charge−discharge cycles. The P-3-P sandwich-structured film provides excellent possibilities for the construction of high storage capacity film capacitors and could be used to its full potential in the field of film capacitors with high storage of energy.

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Perspective on interface engineering for capacitive energy storage polymer nanodielectrics

Abstract: Polymer nanodielectrics with high breakdown strength (Eb), high energy density (Ue) and low energy loss have great potential to be used as capacitive energy storage materials of high-voltage film capacitors...

Cited by 18 publications

References 97 publications

Fabrication of Advanced Cellulosic Triboelectric Materials via Dielectric Modulation

Fabrication of Advanced Cellulosic Triboelectric Materials via Dielectric Modulation

Higher hydrogen fractions in dielectric polymers boost self-healing in electrical capacitors

Sandwich-Structured PC/PVDF-Based Energy Storage Dielectric with Inorganic Doping to Regulate Electric Field Distribution

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