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Energy storage characteristics of bulk polymerized PMMA-based composite dielectric films
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Bo CAI1, Yuetao ZHAO1, 2, 3, Xiangshuo MENG1, Yujiu ZHOU2, Likun WANG1, Hu YE2, 3, Qifeng PAN2, Jianhua XU3
Insulating Materials | 2024, 57(4) : 22 - 27
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Insulating Materials | 2024, 57(4): 22-27
• Material Research •
Energy storage characteristics of bulk polymerized PMMA-based composite dielectric films
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Bo CAI1, Yuetao ZHAO1, 2, 3, Xiangshuo MENG1, Yujiu ZHOU2, Likun WANG1, Hu YE2, 3, Qifeng PAN2, Jianhua XU3
Affiliations
  • 1Ocean College, Jiangsu University of Science and Technology, Zhenjiang 212003, China
  • 2China Zhenhua (Group) Xinyun Electronic Components and Development Company Limited, Guiyang 550018, China
  • 3School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
Published: 2024-04-20 doi: 10.16790/j.cnki.1009-9239.im.2024.04.003
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Currently, the dielectric of plastic film capacitors is usually linear dielectric polymers with a low dielectric constant, leading to a relatively low energy storage density of capacitors. High-energy-density dielectric polymers under research often suffer from excessive dielectric loss, limiting their practical utilization. Poly(methyl methacrylate) (PMMA) has been commonly employed to enhance the mechanical and breakdown properties of high-energy-density fluoropolymer beceause of their good compatibility between them. However, the commercially available PMMA also exhibits too high intrinsic dielectric loss. In order to decrease the dielectric loss of PMMA, a copolymer named MS was synthesized from methyl methacrylate (MMA) and styrene (St). Subsequently, a series of composites were fabricated by incorporating low content of MS into bulk polymerized PMMA, and their dielectric properties, energy storage characteristics, and insulating peoperties were investigated. The results show that the composites can significantly reduce the dielectric loss of PMMA, making it more suitable as the modified material of high-energy-density polymer compared to PMMA. Under 5 500 kV/cm of electric field, the discharge energy density of the dielectric film composed of 10% MS achieves 5 J/cm3, and its charge-discharge efficiency can attain 83%.

polymethyl methacrylate  /  dielectric loss  /  energy storage  /  all-organic composite dielectric film
Bo CAI, Yuetao ZHAO, Xiangshuo MENG, Yujiu ZHOU, Likun WANG, Hu YE, Qifeng PAN, Jianhua XU. Energy storage characteristics of bulk polymerized PMMA-based composite dielectric films[J]. Insulating Materials, 2024 , 57 (4) : 22 -27 . DOI: 10.16790/j.cnki.1009-9239.im.2024.04.003
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doi: 10.16790/j.cnki.1009-9239.im.2024.04.003
  • Receive Date：2023-03-26
  • Online Date：2025-12-22
  • Published：2024-04-20
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History
  • Received：2023-03-26
  • Revised：2023-07-07
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Affiliations
    1Ocean College, Jiangsu University of Science and Technology, Zhenjiang 212003, China
    2China Zhenhua (Group) Xinyun Electronic Components and Development Company Limited, Guiyang 550018, China
    3School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2024.04.003
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
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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