Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Advancing energy storage properties in barium titanate-based relaxor ferroelectric ceramics through a stagewise optimization strategy
AU - Wang, Wen
AU - Yang, Yule
AU - Qian, Jin
AU - Shi, Wenjing
AU - Huang, Yunyao
AU - Jing, Ruiyi
AU - Zhang, Leiyang
AU - Pan, Zhongbin
AU - Laletin, Vladimir
AU - Shur, Vladimir
AU - Zhai, Jiwei
AU - Jin, Li
N1 - This work was finically supported by the National Natural Science Foundation of China (Grant Nos. 52261135548 and 52172127) and the Key Research and Development Program of Shaanxi (Program No. 2022KWZ-22). 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 - 2024/5/1
Y1 - 2024/5/1
N2 - To propel advanced energy storage devices for high pulse power systems, overcoming the pivotal challenges of concurrently augmenting energy storage density (Wrec) and efficiency (η) in relaxor ferroelectric (RFE) ceramics is imperative. This study delineates a stagewise collaborative optimization strategy aimed at enhancing the energy storage property (ESP) of BaTiO3 (BT)-based (Ba0.8Sr0.2)TiO3 (BST) ceramics, namely, integrating (Na0.73Bi0.09)NbO3 (NBN) with secondary processing technology. Capitalizing on the inherent strong polarity from A-site Bi3+ ions, the high valence, and wide-bandgap of B-sites introduce local random electric fields and impede the transition of electrons, generating polar nanoregions and expanding breakdown thresholds. Furthermore, the application of the viscous polymer process (VPP) in BST-NBN ceramics seeks to diminish porosity and enhance compactness, thereby sequentially improving polarization difference (ΔP) and breakdown strength (Eb). Guided by a stepwise optimization strategy, the anticipated energy storage characteristics (Wrec = 8.5 J/cm3, η = 93.4 %) under 640 kV/cm are realized in 0.91BST-0.09NBN-VPP ceramics, ensuring thermal reliability (20–120 °C) superior to most BT-based ceramics. This research marks a substantial advancement in the pursuit of more efficient and reliable ceramic dielectric capacitors, cruscial for powering modern high-power electronic devices.
AB - To propel advanced energy storage devices for high pulse power systems, overcoming the pivotal challenges of concurrently augmenting energy storage density (Wrec) and efficiency (η) in relaxor ferroelectric (RFE) ceramics is imperative. This study delineates a stagewise collaborative optimization strategy aimed at enhancing the energy storage property (ESP) of BaTiO3 (BT)-based (Ba0.8Sr0.2)TiO3 (BST) ceramics, namely, integrating (Na0.73Bi0.09)NbO3 (NBN) with secondary processing technology. Capitalizing on the inherent strong polarity from A-site Bi3+ ions, the high valence, and wide-bandgap of B-sites introduce local random electric fields and impede the transition of electrons, generating polar nanoregions and expanding breakdown thresholds. Furthermore, the application of the viscous polymer process (VPP) in BST-NBN ceramics seeks to diminish porosity and enhance compactness, thereby sequentially improving polarization difference (ΔP) and breakdown strength (Eb). Guided by a stepwise optimization strategy, the anticipated energy storage characteristics (Wrec = 8.5 J/cm3, η = 93.4 %) under 640 kV/cm are realized in 0.91BST-0.09NBN-VPP ceramics, ensuring thermal reliability (20–120 °C) superior to most BT-based ceramics. This research marks a substantial advancement in the pursuit of more efficient and reliable ceramic dielectric capacitors, cruscial for powering modern high-power electronic devices.
UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85189929799
U2 - 10.1016/j.cej.2024.151043
DO - 10.1016/j.cej.2024.151043
M3 - Article
VL - 488
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
SN - 1385-8947
M1 - 151043
ER -
ID: 55701709