Extreme high energy storage efficiency in perovskite structured (1-x)(Ba0.8Sr0.2)TiO3-xBi(Zn2/3Nb1/3)O3 (0.04 ≤ x ≤ 0.16) ceramics. Issue 8 (July 2020)

• Record Type: Journal Article
• Authors: Zhang, Lei; Pang, Li-Xia; Li, Wen-Bo; Zhou, Di
• Is Part Of: Journal of the European Ceramic Society. Volume 40:Issue 8(2020)
• Page Start: 3343
• Page End: 3347
• Publication Date: 2020-07
• Subjects: Barium strontium titanate -- Dielectric properties -- Breakdown field strength -- Energy efficiency; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2020.03.015
• Languages: English
• ISSNs: 0955-2219

Abstract

Abstract: Dielectric materials with high power density, fast charge and discharge rates, and high energy-storage density are urgently required due to the rapid development of hybrid vehicles and pulse power boosting technology. In this work, the novel environment-friendly (1-x)(Ba0.8 Sr0.2 )TiO3 -xBi(Zn2/3 Nb1/3 )O3 (0.04 ≤ x ≤ 0.16) [(1-x)BST-xBZN] ceramics were designed and synthesized by traditional solid-state reaction method, exhibiting ultrahigh energy efficiency and super stability against temperature. The results show that the recoverable energy density (Wrec ) and the energy efficiency ( η ) of the (1-x)BST-xBZN ceramics are increase sharply then decrease slightly with increasing of x value. The 0.88BST-0.12BZN ceramic demonstrated a recoverable energy density of ≈ 1.62 J/cm 3 and an extreme high energy efficiency of ∼ 99.8 % at 225 kV/cm at room temperature. These extreme high efficiency and high breakdown strength would make (Ba, Sr)TiO3 -based lead-free ceramic systems might be good candidate for high power energy-storage applications pulsed power systems.