TY - GEN
T1 - The Simultaneous Improvement of Energy Storage Density and Self-Healing Property of Metallized Film
AU - Zhang, Ting
AU - Cheng, Lu
AU - Hu, Di
AU - Zhang, Xinghui
AU - Xing, Zhaoliang
AU - Li, Hui
AU - Guo, Shaowei
AU - Liu, Wenfeng
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - In the present study, to improve the energy storage density and the self-healing property simultaneously, the double layer structure metalized film with the polyvinyl alcohol (PVA) coated on BOPP was proposed. With the increasing thickness of the PVA layer, the dielectric constant was raised, and the DC breakdown strength of the PP/PVA films first rising and then decreasing. Besides, the breakdown strength showed polarity dependence, and thus the highest breakdown strength 727.9 kV/mm was achieved with the PVA thickness of 2 μm, and the positive voltage applied on the PP side. The highest energy storage density of 5.97 J/cm3 was obtained that was 63.56% higher than the neat PP film. Moreover, the self-healing energy and the equivalent conductivity decreased as the thickness of PVA went up, corresponding to the reduced capacitance loss and the suppressed temperature-rise of metalized film capacitor. The improvement of energy storage density and the self-healing properties were originated from the interface of PP and PVA layer and the optimized ingredients of the lower ratio of C/(H+O). The present study provides the new orientation for the development of dielectric material for metalized film capacitors.
AB - In the present study, to improve the energy storage density and the self-healing property simultaneously, the double layer structure metalized film with the polyvinyl alcohol (PVA) coated on BOPP was proposed. With the increasing thickness of the PVA layer, the dielectric constant was raised, and the DC breakdown strength of the PP/PVA films first rising and then decreasing. Besides, the breakdown strength showed polarity dependence, and thus the highest breakdown strength 727.9 kV/mm was achieved with the PVA thickness of 2 μm, and the positive voltage applied on the PP side. The highest energy storage density of 5.97 J/cm3 was obtained that was 63.56% higher than the neat PP film. Moreover, the self-healing energy and the equivalent conductivity decreased as the thickness of PVA went up, corresponding to the reduced capacitance loss and the suppressed temperature-rise of metalized film capacitor. The improvement of energy storage density and the self-healing properties were originated from the interface of PP and PVA layer and the optimized ingredients of the lower ratio of C/(H+O). The present study provides the new orientation for the development of dielectric material for metalized film capacitors.
KW - capacitor
KW - energy storage density
KW - metalized film
KW - self-healing
UR - https://www.scopus.com/pages/publications/85211159459
U2 - 10.1109/ICPADM61663.2024.10750615
DO - 10.1109/ICPADM61663.2024.10750615
M3 - 会议稿件
AN - SCOPUS:85211159459
T3 - Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials
SP - 218
EP - 221
BT - 14th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2024
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2024
Y2 - 4 August 2024 through 7 August 2024
ER -