Energy storage properties of surface-modified BaTiO3 ceramic films for multilayer capacitors applications

Journal of Advanced Dielectrics

Chunyan Zeng¹  Baibo Liu²  Hongxian Wang²  Xiaohui Wang² 

[1] China Building Material Test & Certification Group Co. Ltd, China Building Materials Academy, Beijing 100024, P. R. China;State Key Laboratory of New Ceramic and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China;

关键词: Ceramic films;    multilayer ceramic capacitors;    ferroelectrics;    energy storage;   

DOI  :  10.1142/S2010135X19500279

来源: DOAJ

【 摘 要 】

Surface-modified BaTiO3 of 230nm average grain size were synthesized by coating BaTiO3 particles with 3wt.% Al2O3 and 1wt.% SiO2. Ceramic films of different thicknesses were prepared via tape casting and laminating processes followed by two-steps sintering method. After sintering, the average grain size of Surface-modified BaTiO3 ceramic slightly increased to 275nm, and great enhancement of AC breakdown strength (BDS) from 184kV/cm to 665kV/cm was obtained as the thickness of ceramic films decreased from 63μm to 12μm, resulting in improvement of discharge energy density from 1.14J/cm3to 4.06J/cm3. Because of their low-cost, easily fabrication, lead-free, improved AC BDS and discharge energy density, surface-modified BaTiO3 ceramic films appeared promising for applications in multilayer energy storage capacitors.

【 授权许可】

Unknown