Local Heterogeneous Polarization Enhanced Superior Low-Field Energy Storage Performance in Lead-Free Relaxor Ferroelectric Ceramics

Cai, Ziming1; Yang, Hang1; Zhu, Chaoqiong1,4; Li, Shiheng1; Luo, Bingcheng2; Li, Aoyu1; Li, Xinheng1; Tian, Zhaobo3; Feng, Peizhong1

2023-09-05

10.1021/acssuschemeng.3c03618

ACS SUSTAINABLE CHEMISTRY & ENGINEERING   影响因子和分区

2168-0485

High-performance ceramic dielectrics play a crucial role in the development of next-generation advanced high/pulsed power capacitors. Thereby, the utilization of relaxor ferroelectric ceramics in energy storage applications is of great interest due to the small hysteresis, while the undesirable discharge energy density caused by the limited polarization, especially under a low applied electric field is still a huge challenge in practical applications. To reconcile the relationship between polarization and breakdown strength, a local heterogeneous polarization strategy is delivered by introducing multicomponents into Bi0.5Na0.5TiO3-based ceramics, which can weaken the nonlinearity of the P-E relation and delay the saturation polarization simultaneously. A large polarization of 38.1 mu C/cm(2) is reached at a relatively low electric field of 280 kV/cm in the BB-35BN ceramic. Meanwhile, a large energy storage density of 4.11 J/cm(3) together with an ultrahigh energy efficiency of 95.6% is achieved. The microscale component fluctuations are observed by electron probe X-ray microanalysis (EPMA). The significant lattice distortions can be detected via highresolution transmission electron microscopy (HR-TEM), which contributes to the overall polarization strength. Additionally, this ceramic system has excellent temperature stability (Delta W-dis <= 15%, from 25 to 190 degrees C) and fatigue stability (Delta W-dis <= 2.48%, after 106 cycles), thereby showing great potential in practical high-temperature energy storage applications.

local heterogeneous polarizations low electric field energy storage ceramics high polarization component fluctuation

SCI ; EI

英语

其他

National Natural Science Foundation of China["52202153","52272114"] ; China Postdoctoral Science Foundation[2023TQ0372] ; Fundamental Research Funds for the Central Universities["2021QN1113","2023QN1034"] ; State Key Laboratory of New Ceramic and Fine Processing Tsinghua University["KFZD202002","KF202204"]

Chemistry ; Science & Technology - Other Topics ; Engineering

Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical

WOS:001062610200001

AMER CHEMICAL SOC

20233914779438

Electric discharges ; Energy efficiency ; Energy storage ; Ferroelectric materials ; Ferroelectricity ; High resolution transmission electron microscopy ; High temperature applications

Energy Conservation:525.2 ; Energy Storage:525.7 ; Electricity: Basic Concepts and Phenomena:701.1 ; Dielectric Materials:708.1 ; Optical Devices and Systems:741.3

Web of Science

1.China Univ Min & Technol, Sch Mat Sci & Phys, Xuzhou 221116, Jiangsu, Peoples R China
2.China Agr Univ, Coll Sci, Beijing 100083, Peoples R China
3.Southern Univ Sci & Technol, Sch Microelect, Shenzhen 518055, Peoples R China
4.China Univ Min & Technol, Sch Mines, Xuzhou 221116, Jiangsu, Peoples R China

Cai, Ziming,Yang, Hang,Zhu, Chaoqiong,et al. Local Heterogeneous Polarization Enhanced Superior Low-Field Energy Storage Performance in Lead-Free Relaxor Ferroelectric Ceramics[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2023,11(37):13729-13735.

Cai, Ziming.,Yang, Hang.,Zhu, Chaoqiong.,Li, Shiheng.,Luo, Bingcheng.,...&Feng, Peizhong.(2023).Local Heterogeneous Polarization Enhanced Superior Low-Field Energy Storage Performance in Lead-Free Relaxor Ferroelectric Ceramics.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,11(37),13729-13735.

Cai, Ziming,et al."Local Heterogeneous Polarization Enhanced Superior Low-Field Energy Storage Performance in Lead-Free Relaxor Ferroelectric Ceramics".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 11.37(2023):13729-13735.