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Study on dielectric and energy storage characteristics of P(VDF-CTFE)/DA@BTO laminated composite film
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Ping XIONG1, Rui WU2, Chao MA2, Jianhua XU4, Qiaomei WANG3
Insulating Materials | 2024, 57(7) : 28 - 35
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Insulating Materials | 2024, 57(7): 28-35
• Material Research •
Study on dielectric and energy storage characteristics of P(VDF-CTFE)/DA@BTO laminated composite film
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Ping XIONG1, Rui WU2, Chao MA2, Jianhua XU4, Qiaomei WANG3
Affiliations
  • 1School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu 611730, China
  • 2School of Electronic Engineering, Chengdu Technological University, Chengdu 611730, China
  • 3School of Network & Communication Engineering, Chengdu Technological University, Chengdu 611730, China
  • 4School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
Published: 2024-07-20 doi: 10.16790/j.cnki.1009-9239.im.2024.07.004
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Polyvinylidene fluoride (PVDF)-based polymer has promising applications perspectives in the field of high energy storage density and high pulse energy storage. In this paper, barium titanate (BTO) nanoparticles were doped with polyvinylidene fluoride-chlorotrifluoroethylene (P(VDF-CTFE)) solution, and P(VDF-CTFE)/BTO composite films were prepared by solution casting method. The effects of different BTO doping contents on microstructure, dielectric properties, and energy storage characteristics of the composite films were investigated. Then the BTO was modified by dopamine (DA) to enhance the compatibility between BTO and polymer matrix and improve the dielectric constant and electric strength of composite films. At the same time, on the basis of the "breakdown blocking effect" between the films layers, the laminated composite films were prepared to enhance the energy storage properties. The results show that using the P(VDF-CTFE)/DA@BTO composite film with a DA modified BTO mass fraction of 10% as the interlayer, and the P(VDF-CTFE) as the outerlayer, the prepared PV-BT-PV laminated sandwich composite film has a dielectric constant of 10.44, a maximum electric strength of 362.25 kV/mm, and a charge discharge efficiency of 86.63% at an electric field strength of 500 kV/cm.

BaTiO3  /  P(VDF-CTFE)  /  laminated composite film  /  dielectric characteristics  /  energy storage characteristics
Ping XIONG, Rui WU, Chao MA, Jianhua XU, Qiaomei WANG. Study on dielectric and energy storage characteristics of P(VDF-CTFE)/DA@BTO laminated composite film[J]. Insulating Materials, 2024 , 57 (7) : 28 -35 . DOI: 10.16790/j.cnki.1009-9239.im.2024.07.004
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doi: 10.16790/j.cnki.1009-9239.im.2024.07.004
  • Receive Date：2023-07-08
  • Online Date：2025-12-24
  • Published：2024-07-20
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  • Received：2023-07-08
  • Revised：2023-08-30
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Affiliations
    1School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu 611730, China
    2School of Electronic Engineering, Chengdu Technological University, Chengdu 611730, China
    3School of Network & Communication Engineering, Chengdu Technological University, Chengdu 611730, China
    4School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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