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Review

Strategies to Improve the Energy Storage Properties of Perovskite Lead-Free Relaxor Ferroelectrics: A Review

Materials Center Leoben Forschung GmbH, Roseggerstrasse 12, A-8700 Leoben, Austria
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Materials 2020, 13(24), 5742; https://doi.org/10.3390/ma13245742
Received: 16 November 2020 / Revised: 3 December 2020 / Accepted: 7 December 2020 / Published: 16 December 2020
(This article belongs to the Special Issue Piezoelectric Ceramics: From Fundamentals to Applications)
Electrical energy storage systems (EESSs) with high energy density and power density are essential for the effective miniaturization of future electronic devices. Among different EESSs available in the market, dielectric capacitors relying on swift electronic and ionic polarization-based mechanisms to store and deliver energy already demonstrate high power densities. However, different intrinsic and extrinsic contributions to energy dissipations prevent ceramic-based dielectric capacitors from reaching high recoverable energy density levels. Interestingly, relaxor ferroelectric-based dielectric capacitors, because of their low remnant polarization, show relatively high energy density and thus display great potential for applications requiring high energy density properties. In this study, some of the main strategies to improve the energy density properties of perovskite lead-free relaxor systems are reviewed, including (i) chemical modification at different crystallographic sites, (ii) chemical additives that do not target lattice sites, and (iii) novel processing approaches dedicated to bulk ceramics, thick and thin films, respectively. Recent advancements are summarized concerning the search for relaxor materials with superior energy density properties and the appropriate choice of both composition and processing routes to match various applications’ needs. Finally, future trends in computationally-aided materials design are presented. View Full-Text
Keywords: energy storage; ceramic dielectrics; ferroelectrics; relaxors; energy density; microstructural properties; dielectric properties energy storage; ceramic dielectrics; ferroelectrics; relaxors; energy density; microstructural properties; dielectric properties
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MDPI and ACS Style

Veerapandiyan, V.; Benes, F.; Gindel, T.; Deluca, M. Strategies to Improve the Energy Storage Properties of Perovskite Lead-Free Relaxor Ferroelectrics: A Review. Materials 2020, 13, 5742. https://doi.org/10.3390/ma13245742

AMA Style

Veerapandiyan V, Benes F, Gindel T, Deluca M. Strategies to Improve the Energy Storage Properties of Perovskite Lead-Free Relaxor Ferroelectrics: A Review. Materials. 2020; 13(24):5742. https://doi.org/10.3390/ma13245742

Chicago/Turabian Style

Veerapandiyan, Vignaswaran, Federica Benes, Theresa Gindel, and Marco Deluca. 2020. "Strategies to Improve the Energy Storage Properties of Perovskite Lead-Free Relaxor Ferroelectrics: A Review" Materials 13, no. 24: 5742. https://doi.org/10.3390/ma13245742

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