Ultimate electromechanical energy conversion performance and energy storage capacity of ferroelectric materials under high excitation levels

Nguyen Thanh Tung, Gaspard Taxil, Hung Hoang Nguyen, Benjamin Ducharne, Mickaël Lallart, Elie Lefeuvre, Hiroki Kuwano and Gael Sebald

Applied Energy, 2022, vol. 326, issue C, No S0306261922012417

Abstract: In the framework of piezoelectric energy harvesting, this work focused on the quantification of the ultimate energy conversion capability of various ferroelectric ceramics and single crystals. Energy conversion was achieved by the application of Ericsson cycles under high electric field and mechanical stress. The main aim of this approach was to experimentally apply the electromechanical Ericsson cycles on several key materials. This process was decomposed into four steps, which consisted of applying and removing an electric field under constant stress and stress application/removal under a constant electric field. In this work, ferroelectric ceramics—hard PZT C203, medium PZT C6, soft PZT C9, and single crystal PMN-25PT and PZN-8PT—and paraelectric ceramic PMN 15 were tested. The PMN-25PT and PZN-8PT ferroelectric single crystals exhibited higher energy conversion potential than the ceramics in the ferroelectric and paraelectric phases. However, the soft PZT C9 ceramic (107.6 mJ/cm3) was comparable to single crystal PMN-25PT (118.7 mJ/cm3). Considering the cost and fabrication process, PZT C9 is an excellent candidate for practical applications. A simple yet accurate experimental estimation of the energy density of the materials based on the bipolar hysteresis curves under compressive stresses of 1 and 100 MPa was also proposed. The estimated energy densities were similar to the real Ericsson cycles. The energy storage capacity of these materials was also analyzed. The PMN 15 ceramic in the paraelectric phase had the highest stored energy, and in the paraelectric phase, PMN 15 had a maximum stored electrical energy of 87 mJ/cm3 under a static stress value of 1 MPa, which was increased to 105 mJ/cm3 under a static stress value of 100 MPa. Ultimately, this study allowed for the evaluation of the maximal energy conversion capabilities of several classes of electroactive materials, highlighting their potential in terms of their target applications and operative environments (such as the maximal stress or electric field).

Keywords: Ericsson cycle; Energy density; Energy storage; Compressive stress; Energy harvesting; Ferroelectric (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0306261922012417
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:326:y:2022:i:c:s0306261922012417

Ordering information: This journal article can be ordered from
http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/bibliographic
http://www.elsevier. ... 405891/bibliographic

DOI: 10.1016/j.apenergy.2022.119984

Access Statistics for this article

Applied Energy is currently edited by J. Yan

More articles in Applied Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().