| Recently, research on energy storage dielectric focused on the preparation of materials with high dielectric, high breakdown strength to meet the requirements of light and miniaturization pulsed power system. In this paper, Ba0.3Sr0.7TiO3 ceramics was studied by adding ZBS glass to improve the breakdown strength, and different kinds of glass on the ceramics dielectric breakdown were studied to get the best glass components. Through structural designing, the glass-ceramic laminated films were prepared in order to further improve the system energy density. Main results are as follows:(1)Stable and amorphous ZBS2 glass was successfully prepared by adjusting the component of ZBS1 glass and the samples of ST and BST added with ZBS2 glass were fabricated using traditional solid method. Through studying the dielectric properties of these samples, it is found that the breakdown strength of ST and BST ceramics was greatly improved due to adding ZBS2 glass, the value of them is 18.3kV/mm and 18.1kV/mm respectively.However, the dielectric difference between ST and BST become greater disparity because of the addition of low dielectric constant ZBS2 glass. The permittivity of ST fell down from 377 to 242, while that of BST decreased from 650 to 500, so BST with ZBS2 glass addition has a higher energy density, which is more suitable for ceramic matrix as the energy storage medium compared with ST ceramic.(2) A series of ZBS glasses were successfully prepared by adjusting the component of ZBS2 glass, and were added to BST ceramic as fomer method. Results show that the addition of glass has greatly improved the breakdown strength of ceramics. However, among all of the samples, the BST with ZBS3 glass have the highest breakdown strength when the addition content is 6wt% is 26.7kV/mm, which also have the least permittivity decreasing from 650 to 393, moreover, they have very low dielectric loss. BST with 6wt% ZBS3 obtained maximum energy storage density is 1.5J/cm3.(3) Laminated glass and ceramic films were fabricated by sol-gel method. Preparation process:twice spin coating time and speed are 10s-600rpm and 30s-3000rpm. Two baking plastic temperatures are 200℃and 400℃respectively, and the annealing temperature is 600℃which all determined by differential thermal test, the heating rate is 1℃/min. Characterizing the films using XRD, SEM, AFM, we found that the ceramics film have good crystallization and glass remain amorphous, and the films have uniform and dense microstructure. The testing results of dielectric properties show that dielectric constant decreased with increasing frequency, and dielectric loss of laminated glass-ceramic films were higher than the pure BST and ZBS films.
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