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Research on energy storage performance of PVH based all-organic composite films
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Jiujun ZHU, Zhibiao ZHU, Tingyu FU, Yafei HOU
Insulating Materials | 2024, 57(11) : 40 - 50
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Insulating Materials | 2024, 57(11): 40-50
• Special Issue on Key Materials and Technology for New Energy Vehicles •
Research on energy storage performance of PVH based all-organic composite films
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Jiujun ZHU, Zhibiao ZHU, Tingyu FU, Yafei HOU
Affiliations
  • School of Physical Science and Technology, Ningbo University, Ningbo 315211, China
Published: 2024-11-20 doi: 10.16790/j.cnki.1009-9239.im.2024.11.004
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Excessive free electrons in thin film capacitors will increase the leakage current density, reduce the electric strength, and promote the breakdown of capacitors, thus preventing them from obtaining excellent energy storage performance. To mitigate the impact of free electrons and secondary impact ionization electrons (SIE) on energy storage performance, this study introduced perylene diimide (PDI), 1,4,5,8-naphthalenetetracarboxylic dianhydride (NDI), and 4-cyano-4′-pentylbiphenyl (5CB) into polyvinylidene-hexafluoropropylene (PVH) to construct an all-organic composite films, respectively, and the structure, thermal properties, and energy storage performance of three kinds of films were studied. The results show that PDI/PVH composite film with PDI mass fraction of 0.5% has the better thermal properties, smaller grain size, and tighter lattice structure, which is helpful to achieve higher electric strength and discharge energy density. Through comparison, it is found that PDI possesses a more suitable band structure and conductivity, which makes PDI/PVH composite film have better energy storage performance. The discharge energy density of 0.5%PDI/PVH composite film achieves 16.6 J/cm3 at 499.7 MV/m, and maintains a high charge-discharge efficiency of 80.5%.

electron traps  /  all-organic  /  composite materials  /  energy storage performance
Jiujun ZHU, Zhibiao ZHU, Tingyu FU, Yafei HOU. Research on energy storage performance of PVH based all-organic composite films[J]. Insulating Materials, 2024 , 57 (11) : 40 -50 . DOI: 10.16790/j.cnki.1009-9239.im.2024.11.004
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Year 2024 volume 57 Issue 11
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doi: 10.16790/j.cnki.1009-9239.im.2024.11.004
  • Receive Date：2024-04-18
  • Online Date：2025-12-24
  • Published：2024-11-20
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  • Received：2024-04-18
  • Revised：2024-05-24
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    School of Physical Science and Technology, Ningbo University, Ningbo 315211, China
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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
species (%)
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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