TY - JOUR

T1 - Enhancing energy storage performance in Na0.5Bi0.5TiO3-based lead-free relaxor ferroelectric ceramics along a stepwise optimization route

AU - Wang, Wen

AU - Zhang, Leiyang

AU - Yang, Yule

AU - Shi, Wenjing

AU - Huang, Yunyao

AU - Alikin, D. O.

AU - Shur, V. Ya.

AU - Lou, Zhihao

AU - Zhang, Amei

AU - Wei, Xiaoyong

AU - Wang, Dong

AU - Gao, Feng

AU - Du, Hongliang

AU - Jin, Li

N1 - This work was financially supported by the National Natural Science Foundation of China (Grant No. 52261135548), the Key Research and Development Program of Shaanxi (Program No. 2022KWZ-22), the Natural Science Basic Research Program of Shaanxi (Grant No. 2023-JC-YB-441), the National Key Research and Development Program of China (Grant No. 2021YFE0115000 and 2021YFB3800602), the Youth Innovation Team of Shaanxi Universities, the Scientific Research Program Funded by Shaanxi Provincial Education Department, China (Grant No. 21JK0869 and 22JP073) and the Fundamental Research Funds of Shaanxi Key Laboratory of Artificially-Structured Functional Materials and Devices (AFMD-KFJJ-21203). The research was made possible by Russian Science Foundation (Project No. 23-42-00116). The equipment of the Ural Center for Shared Use “Modern nanotechnology” Ural Federal University (Reg. No. 2968) which is supported by the Ministry of Science and Higher Education RF (Project No. 075-15-2021-677) was used. The SEM work was done at International Center for Dielectric Research (ICDR), Xi'an Jiaotong University, Xi'an, China.

PY - 2023

Y1 - 2023

N2 - Despite the fact that relaxor ferroelectrics (RFEs) have been extensively researched because of their various advantages, there are still barriers to simultaneously increasing their energy storage density (W-rec) and efficiency (eta). By substituting Bi(Mg0.5Sn0.5)O-3 (BMS) and optimizing the formation process, this study follows a stepwise optimization route to achieve comprehensive exceptional energy storage performance (ESP) in Na0.5Bi0.5TiO3-Sr0.85Bi0.1TiO3 (NBT-SBT)-based ceramics. On the premise of constructing a Sr2+-Sr2+ ion pair at the A-site to ensure a large polarization, the introduction of Mg2+ and Sn4+ ions at the B-site further induces a local disordered field and promotes polar nanoregions. Following that, the viscous polymer process (VPP) used to synthesize NBT-SBT-BMS ceramics can thin the thickness, reduce defects, and boost compactness, hence improving the polarization difference (Delta P) and breakdown strength (E-b). Using the stepwise optimization route, we were able to attain a high Delta P of 64.6 mu C cm(-2) and an E-b of 440 kV cm(-1) in 0.92(0.65NBT-0.35SBT)-0.08BMS-VPP ceramics. More crucially, an ultrahigh W-rec of 7.5 J cm(-3) and a high eta of 85% are simultaneously achieved, together with excellent temperature adaptability between 20 and 120 degrees C. Our superb ESP exceeds the majority of previously reported NBT-based ceramics, confirming the applicability of this stepwise optimization route to other similar high-performance dielectric ceramic designs.

AB - Despite the fact that relaxor ferroelectrics (RFEs) have been extensively researched because of their various advantages, there are still barriers to simultaneously increasing their energy storage density (W-rec) and efficiency (eta). By substituting Bi(Mg0.5Sn0.5)O-3 (BMS) and optimizing the formation process, this study follows a stepwise optimization route to achieve comprehensive exceptional energy storage performance (ESP) in Na0.5Bi0.5TiO3-Sr0.85Bi0.1TiO3 (NBT-SBT)-based ceramics. On the premise of constructing a Sr2+-Sr2+ ion pair at the A-site to ensure a large polarization, the introduction of Mg2+ and Sn4+ ions at the B-site further induces a local disordered field and promotes polar nanoregions. Following that, the viscous polymer process (VPP) used to synthesize NBT-SBT-BMS ceramics can thin the thickness, reduce defects, and boost compactness, hence improving the polarization difference (Delta P) and breakdown strength (E-b). Using the stepwise optimization route, we were able to attain a high Delta P of 64.6 mu C cm(-2) and an E-b of 440 kV cm(-1) in 0.92(0.65NBT-0.35SBT)-0.08BMS-VPP ceramics. More crucially, an ultrahigh W-rec of 7.5 J cm(-3) and a high eta of 85% are simultaneously achieved, together with excellent temperature adaptability between 20 and 120 degrees C. Our superb ESP exceeds the majority of previously reported NBT-based ceramics, confirming the applicability of this stepwise optimization route to other similar high-performance dielectric ceramic designs.

UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=000920738000001

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85147123361

U2 - 10.1039/D2TA09395B

DO - 10.1039/D2TA09395B

M3 - Article

VL - 11

SP - 2641

EP - 2651

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

SN - 2050-7488

IS - 6

ER -