TY - GEN
T1 - Enhanced Energy Storage Density of Bi-Layer Polypropylene Films with UV-Irradiated Interface
AU - Cui, Yuxin
AU - Zhang, Ting
AU - Li, Zhiyuan
AU - Chu, Yang
AU - Cheng, Lu
AU - Chi, Xiaohong
AU - Liu, Wenfeng
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - Polypropylene (PP) films capacitors play a crucial role in power grids, while the relatively low energy storage density (Ue) of the dielectric material limits the integration and miniaturization of capacitors. In this paper, we proposed a bi-layer film consisted of PP and polymethyl methacrylate (PMMA) to enhance the Ue. To improve the interface compatibility, the ultraviolet irradiation was adopted on the surface of PP films with the treatment time ranged from 10 s to 5 min, and then the PMMA layer was coated on the treated PP. The morphology of the bi-layer films was characterized by scanning electron microscope and Fourier transform infrared spectrometer. The dielectric spectroscopy, breakdown strength (BDS) and the D-E loops were tested to investigate the energy storage properties. Results showed that the highest BDS of 775.50 kV / mm and Ue of 7.52 J / cm3 were achieved with the treatment time of 1 min, which were 29.76% and 89.42% higher compared to the neat PP films, respectively. This work provided experimental and theoretical supports for the enhancement of the energy storage properties of PP films.
AB - Polypropylene (PP) films capacitors play a crucial role in power grids, while the relatively low energy storage density (Ue) of the dielectric material limits the integration and miniaturization of capacitors. In this paper, we proposed a bi-layer film consisted of PP and polymethyl methacrylate (PMMA) to enhance the Ue. To improve the interface compatibility, the ultraviolet irradiation was adopted on the surface of PP films with the treatment time ranged from 10 s to 5 min, and then the PMMA layer was coated on the treated PP. The morphology of the bi-layer films was characterized by scanning electron microscope and Fourier transform infrared spectrometer. The dielectric spectroscopy, breakdown strength (BDS) and the D-E loops were tested to investigate the energy storage properties. Results showed that the highest BDS of 775.50 kV / mm and Ue of 7.52 J / cm3 were achieved with the treatment time of 1 min, which were 29.76% and 89.42% higher compared to the neat PP films, respectively. This work provided experimental and theoretical supports for the enhancement of the energy storage properties of PP films.
UR - https://www.scopus.com/pages/publications/105024993406
U2 - 10.1109/CEIDP61707.2025.11218526
DO - 10.1109/CEIDP61707.2025.11218526
M3 - 会议稿件
AN - SCOPUS:105024993406
T3 - Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
SP - 945
EP - 948
BT - 2025 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 100th IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2025
Y2 - 14 September 2025 through 17 September 2025
ER -