Li, W.-B., Zhou, D. orcid.org/0000-0001-7411-4658, Xu, R. et al. (2 more authors) (2018) BaTiO3–Bi(Li0.5Ta0.5)O3, lead-free ceramics, and multilayers with high energy storage density and efficiency. ACS Applied Energy Materials, 1 (9). pp. 5016-5023. ISSN 2574-0962
Abstract
BaTiO3-based materials show great promise for energy storage capacitors, but their low breakdown strength and high remnant polarization currently result in relatively low energy density. Here, we report a novel (1–x)BaTiO3–xBi(Li0.5Ta0.5)O3 (0.06 ≤ x ≤ 0.12, BT–xBLT) lead-free ceramic with electric field (E) ∼ 280 kV cm–1, discharge energy density (We) ∼ 2.2 J cm–3, charge–discharge efficiency (η) > 89% that is thermally stable up to 160 °C and with a fast discharge time (≤0.5 μs). Multilayers of compositions with x = 0.1 also exhibited high We = 4.05 J cm–3 and η = 95.5%, demonstrating their potential for energy storage.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 American Chemical Society. This is an author produced version of a paper subsequently published in ACS Applied Energy Materials. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | BaTiO3; capacitors; ceramics; dielectrics; energy storage; multilayers |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 20 Feb 2019 12:51 |
Last Modified: | 17 Aug 2019 01:06 |
Published Version: | https://doi.org/10.1021/acsaem.8b01001 |
Status: | Published |
Publisher: | American Chemical Society |
Refereed: | Yes |
Identification Number: | 10.1021/acsaem.8b01001 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:142621 |