High-energy storage performance in lead-free (1-x)BaTiO3-xBi(Zn0.5Ti0.5)O3 relaxor ceramics for temperature stability applications |
| |
| Affiliation: | 1. Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, People''s Republic of China;2. University of the Chinese Academy of Sciences, Beijing 100049, People''s Republic of China;3. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, and School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, People''s Republic of China;1. School of Natural Sciences and Mathematics, Ural Federal University, Ekaterinburg 620000, Russia;2. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Xi’an Jiaotong University, Xi’an 710049, China;1. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China;2. Xi’an Jiaotong University Suzhou Academy, Suzhou 215123, Jiangsu, China;3. Micro-optoelectronic Systems Laboratories, Xi’an Technological University, Xi’an 710032, Shaanxi, China;4. School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China |
| |
| Abstract: | In this paper, we prepared lead-free (1-x)BaTiO3-xBi(Zn0.5Ti0.5)O3 (x=0.04, 0.08, 0.10, and 0.14) ceramics by a conventional solid-state reaction technique. Pure perovskite structures and dense microstructures were demonstrated for all the compositions. Interestingly, it was found that the sintering temperature tended to decrease with increasing the Bi(Zn0.5Ti0.5)O3 content. It should be stressed that a low sintering temperature of 1050 °C was utilized for the composition of x=0.14. Moreover, the dielectric permittivity-temperature curve became more flat and the relaxor degree became stronger with the augment in Bi(Zn0.5Ti0.5)O3 content. We also conducted a detailed study on the energy storage performance for all the compositions from 25 °C to 180 °C.We found that relatively temperature-stable energy storage performance could be obtained in the compositions with x=0.08, 0.10 and 0.14 regardless of the evolution of dielectric constant during the test temperature range. In particular, due to a higher field of 12 MV m−1, the discharge energy storage densities of x=0.14 could reach 0.81 J cm−3, 0.80 J cm−3, 0.78 J cm−3, 0.72 J cm−3, and 0.67 J cm−3 with high efficiencies of 94%, 92%, 94%, 88% and 77% at 25 °C, 50 °C, 100 °C, 150 °C, and 180 °C, respectively. All these results demonstrate the (1-x)BaTiO3-xBi(Zn0.5Ti0.5)O3 ceramics are quite promising for temperature-stable energy storage applications. |
| |
| Keywords: | Energy storage Lead-free Relaxor Ferroelectric Energy density |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
