Superior energy storage performance in NaNbO3-based lead-free ceramics under low electric field

IF 3.5 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of the American Ceramic Society Pub Date : 2024-10-16 DOI:10.1111/jace.20209

Kun Liu, Ping Peng, Zhongqian Lv, Hengchang Nie, Genshui Wang

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引用次数: 0

Abstract

NaNbO₃ (NN)-based materials have attracted widespread attention due to their advanced energy storage performance and eco-friendliness. However, achieving high recoverable energy storage densities (W_rec) and efficiency (η) typically requires ultrahigh electric fields (E > 300 kV/cm), which can limit practical use. In this work, we present a synergistic strategy that employs the ferroelectric material Bi_0.5Na_0.5TiO₃ (BNT) to augment the P_max and the linear material Bi_0.2Sr_0.7TiO₃ (BST) to optimize the P–E loops. Furthermore, a two-step sintering process is implemented to preserve high P_max values under lower electric field. As a result, ternary (1−x)(0.90NN-0.10BNT)-xBST was successfully prepared, achieving a high W_rec of 5.1 J/cm³ and a η of 85% in x = 0.20 samples at a low electric field of 290 kV/cm. Moreover, the x = 0.20 samples showed good frequency stability (1–200 Hz) and temperature stability (27°C–100°C). These results provide guidance for the development of ceramics with high energy storage properties under low electric fields.

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来源期刊

Journal of the American Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

7.50

自引率

7.70%

发文量

590

审稿时长

2.1 months

期刊介绍： The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials. Papers on fundamental ceramic and glass science are welcome including those in the following areas: Enabling materials for grand challenges[...] Materials design, selection, synthesis and processing methods[...] Characterization of compositions, structures, defects, and properties along with new methods [...] Mechanisms, Theory, Modeling, and Simulation[...] JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.