High-temperature BaTiO3-based ternary dielectric multilayers for energy storage applications with high efficiency

Li, Wen-Bo; Zhou, Di; Liu, Wen-Feng; Su, Jin-Zhan; Hussain, Fayaz; Wang, Da-Wei; Wang, Ge; Lu, Zhi-Lun; Wang, Qiu-Ping

Abstract

High-temperature BaTiO3-based ceramic capacitors have broad application prospects in energy storage devices. However, energy density and efficiency of BaTiO3-based ceramic capacitors are bottleneck challenges that limit the applications of ceramic capacitors in the vast of industrial applications. To address this issue, it needs to design novel BaTiO3-based ceramics to elevate the breakdown strength, energy density and efficiency of capacitors. Here, high performance BaTiO3-based ceramics with breakdown strength of 290 kV cm−1, discharge energy density is more than 2.4 J cm−3, energy storage efficiency is achieve 91.5% are achieved in novel ternary system 0.88BaTiO3-0.12(1-x)Bi(Li0.5Nb0.5)O3-0.12xBi(Mg0.5Ti0.5)O3 (BT-BLN-BMT) (0.2 ≤ x ≤ 0.8) lead-free ceramic. Moreover, 0.88BT-0.12(1-x)BLN-0.12xBMT (x = 0.6) multilayer ceramics capacitors effectively increased breakdown strength and energy density values are more than 500 kV cm−1 and 4.42 J cm−3, improved by 488% and 1373% compared with only 85 kV cm−1 and 0.3 J cm−3 for the pure BaTiO3. It maintains high thermal stability in the temperature range from 25 °C to 150 °C. All these results have clearly collaborated the promising future of this novel BaTiO3-based ceramics in energy storage applications in the future.

Citation

Li, W., Zhou, D., Liu, W., Su, J., Hussain, F., Wang, D., Wang, G., Lu, Z., & Wang, Q. (2021). High-temperature BaTiO3-based ternary dielectric multilayers for energy storage applications with high efficiency. Chemical Engineering Journal, 414, Article 128760. https://doi.org/10.1016/j.cej.2021.128760

• Journal Article Type: Article
• Acceptance Date: Jan 25, 2021
• Online Publication Date: Jan 31, 2021
• Publication Date: 2021-06
• Deposit Date: Oct 23, 2021
• Journal: Chemical Engineering Journal
• Print ISSN: 1385-8947
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 414
• Article Number: 128760
• DOI: https://doi.org/10.1016/j.cej.2021.128760
• Keywords: Dielectric, BaTiO3, Multilayers, Breakdown strength, Energy storage
• Public URL: http://researchrepository.napier.ac.uk/Output/2815836