[1] [1] HAO X H. A review on the dielectric materials for high energy-storage application[J]. J Adv Dielect, 2013, 3(1): 1330001.

[2] [2] JOHNSON R W, EVANS J L, JACOBSEN P, et al. The changing automotive environment: High-temperature electronics[J]. IEEE Trans Electron Packag Manuf, 2004, 27(3): 164-176.

[3] [3] WANG Y F, CHEN J, LI Y, et al. Multilayered hierarchical polymer composites for high energydensity capacitors[J]. J Mater Chem A, 2019, 7(7): 2965-2980.

[4] [4] CHEN H S, CONG T N, YANG W, et al. Progress in electrical energy storage system: A critical review[J]. Prog Nat Sci, 2009, 19(3): 291-312.

[5] [5] KOUSKSOU T, BRUEL P, JAMIL A, et al. Energy storage: Applications and challenges[J]. Sol Energy Mater Sol Cells, 2014, 120: 59-80.

[6] [6] ZHANG Q M, ZHAO X. Giant electrostriction and relaxor ferroelectric behavior in electron-irradiated poly(vinylidene fluoride-trifluoroethylene) copolymer[J]. Science, 1998, 280(5372): 2101-2104.

[7] [7] LI W P, GUO S S, TANG Y W, et al. Structural changes of 80/20 poly(vinylidene fluoride-trifluoroethylene) copolymer induced by electron irradiation[J]. J Appl Polym Sci, 2004, 91(5): 2903-2907.

[8] [8] MOHANTY H S, SHARMA S K, RaviKant, et al. Enhanced functional properties of soft polymer-ceramic composites by swift heavy ion irradiation[J]. Phys Chem Chem Phys, 2019, 21(44): 24629-24642.

[9] [9] CHENG L, LIU K, GAO H Y, et al. Energy storage performance of sandwich structure composites with strawberry-like Ag@SrTiO3 nanofillers[J]. Chem Eng J, 2022, 435: 135064.

[10] [10] LI J N, LIN X J, CHEN G L, et al. Enhanced discharged energy density in poly(vinylidene fluoride) composites with a small loading of (K0.5Na0.5)NbO3 particles[J]. Int J Energy Res, 2020, 44(14): 12169-12179.

[11] [11] SHEN Z H, WANG J J, JIANG J Y, et al. Phase-field modeling and machine learning of electric-thermal-mechanical breakdown of polymer-based dielectrics[J]. Nat Commun, 2019, 10(1): 1843.

[12] [12] MENG N, REN X T, SANTAGIULIANA G, et al. Ultrahigh β-phase content poly(vinylidene fluoride) with relaxor-like ferroelectricity for high energy density capacitors[J]. Nat Commun, 2019, 10: 4535.

[13] [13] MUJAHID M, SINGH P, SRIVASTAVA D S, et al. Study of chain scission versus crosslinking in MeV ion-irradiated polycarbonate using dielectric constant measurements and UV spectroscopy[J]. Radiat Meas, 2004, 38(2): 197-203.

[14] [14] GONG H H, ZHANG Y, CHENG Y P, et al. The application of controlled/living radical polymerization in modification of PVDF-based fluoropolymer[J]. Chin J Polym Sci, 2021, 39(9): 1110-1126.

[15] [15] GREGORIO JR R. Determination of the α, β, and γ crystalline phases of poly(vinylidene fluoride) films prepared at different conditions[J]. J Appl Polym Sci, 2006, 100(4): 3272-3279.

[16] [16] MARTINS P, LOPES A C, LANCEROS-MENDEZ S. Electroactive phases of poly(vinylidene fluoride): Determination, processing and applications[J]. Prog Polym Sci, 2014, 39(4): 683-706.

[17] [17] GAVADE C, KISHORE S, SINGH N L, et al. Effect of swift heavy ion irradiation on copper/polymethyl methacrylate nanocomposites[J]. Radiat Eff Defects Solids, 2013, 168(7-8): 504-511.

[18] [18] SUN S B, SHI Z C, LIANG L, et al. Simultaneous realization of significantly enhanced breakdown strength and moderately enhanced permittivity in layered PMMA/P(VDF-HFP) nanocomposites via inserting an Al2O3/P(VDF-HFP) layer[J]. J Phys Chem C, 2021, 125(40): 22379-22387.

[19] [19] SUN L, SHI Z C, WANG H L, et al. Ultrahigh discharge efficiency and improved energy density in rationally designed bilayer polyetherimide-BaTiO3/P(VDF-HFP) composites[J]. J Mater Chem A, 2020, 8(11): 5750-5757.

[20] [20] WANG J, XIE Y C, ZHANG Y F, et al. The ultrahigh discharge efficiency and energy density of P(VDF-HFP) via electrospinning-hot press with St-MMA copolymer[J]. Mater Chem Front, 2021, 5(9): 3646-3656.

[21] [21] NIE X S, ZHU K J, SUN Q M, et al. Enhanced discharged energy density of nanocomposites with dopamine@BaTiO3 whiskers[J]. Mater Technol, 2020, 35(9-10): 515-521.

[22] [22] FENG Q K, PING J B, ZHU J, et al. All-organic dielectrics with high breakdown strength and energy storage density for high-power capacitors[J]. Macromol Rapid Commun, 2021, 42(12): e2100116.

[23] [23] LUO B C, WANG X H, WANG H X, et al. P(VDF-HFP)/PMMA flexible composite films with enhanced energy storage density and efficiency[J]. Compos Sci Technol, 2017, 151: 94-103.

[24] [24] SU Y H, HUAN Y, SUN Y X, et al. Optimizing coupling agent for the enhanced energy storage density of BaTiO3/P(VDF-?HFP)&PMMA nanocomposite films[J]. J Polym Res, 2021, 28(8): 295.

[25] [25] HUANG S K, LIU K, ZHANG W, et al. All-organic polymer dielectric materials for advanced dielectric capacitors: Theory, property, modified design and future prospects[J]. Polym Rev, 2023, 63(3): 515-573.

[26] [26] FENG Q K, ZHANG D L, LIU C, et al. Preparation and characterization of all-organic TPU/P(VDF-HFP) flexible composite films with high energy storage[J]. Acta Chim Sin, 2021, 79(10): 1273.