Thumbnail Image
Item

Energy storage properties of samarium-doped bismuth sodium titanate-based lead-free ceramics

Tang, Xuyao
; 
Hu, Zimeng
; 
Koval, Vladimir
; 
Yang, Bin
; 
Smith, Graham C.
; 
Yan, Haixue
Citations
Altmetric:
Advisors
Editors
Other Contributors
Affiliation
University of Chester
EPub Date
Publication Date
2023-08-18
Submitted Date
Collections
Electronic and Electrical Engineering
Show all metadata
Files
Thumbnail Image
Article - AAM
Adobe PDF, 1.75 MB
Other Titles
Abstract
Due to worldwide environmental regulations, lead-free relaxors, namely Bi0.5Na0.5TiO3–6BaTiO3 (BNT-6BT) are being extensively studied as an alternative candidate for energy storage applications. Here, Sm was introduced at different A sites of the relaxor system; specifically, the Sm-doped BNT-6BT system was designed to replace Bi (BNT-Bi), Na (BNT-Na), and both the Bi and Na ions (BNT-BiNa) by Sm ions. It was found that the BNT-Bi sample possesses high piezoelectricity (d33=117.3 pC N-1), whereas the BNT-Na and BNT-BiNa ceramics show exceptionally high values of the energy storage density and efficiency. To define the energy storage performance, a new concept based on determining the recoverable energy storage intensity is proposed in the present work. This allows bypassing the high applied electric fields in determining the value of the energy storage density. An ultrahigh recoverable energy storage density (4.41 J cm-3), excellent energy storage efficiency (83.96%) and superhigh recoverable energy storage intensity (19.17×10-3 J kV-1 cm-2) were achieved in the BNT-BiNa ceramics simultaneously. Furthermore, the energy storage characteristics exhibit an excellent stability over a wide temperature range from 25 °C to 150 °C. Thus, the developed Sm-doped BNT-6BT ceramics show great potential for piezoelectric and high-power energy storage applications.
Citation
Tang, X., Hu, Z., Koval, V., Yang, B., Smith, G. C., & Yan, H. (2023). Energy storage properties of samarium-doped bismuth sodium titanate-based lead-free ceramics. Chemical Engineering Journal, 473, article-number 145363. https://doi.org/10.1016/j.cej.2023.145363
Publisher
Elsevier
Journal
Chemical Engineering Journal
Research Unit
URI
http://hdl.handle.net/10034/628052
DOI
10.1016/j.cej.2023.145363
PubMed ID
PubMed Central ID
Type
Article
Language
Description
Series/Report no.
ISSN
1385-8947
EISSN
ISBN
ISMN
Gov't Doc
Test Link
Sponsors
Additional Links
https://www.sciencedirect.com/science/article/pii/S1385894723040949
Embedded videos