Novel BaTiO3‑based, Ag/Pd-compatible lead-free relaxors with superior energy storage performance

Huijing Yang; Zhilun Lu; Linhao Li; Weichao Bao; Hongfen Ji; Jinglei Li; Antonio Feteira; Fangfang Xu; Yong Zhang; Huajun Sun; Zhichao Huang; Weichao Lou; Kaixin Song; Shikuan Sun; Ge Wang; Dawei Wang; Ian M. Reaney

doi:10.1021/acsami.0c13057

Novel BaTiO₃‑based, Ag/Pd-compatible lead-free relaxors with superior energy storage performance

Huijing Yang
, Zhilun Lu
, Linhao Li
, Weichao Bao
, Hongfen Ji
, Jinglei Li
, Antonio Feteira
, Fangfang Xu
, Yong Zhang
, Huajun Sun
, Zhichao Huang
, Weichao Lou
, Kaixin Song
, Shikuan Sun
, Ge Wang^*
, Dawei Wang^*
, Ian M. Reaney

^*Corresponding author for this work

University of Sheffield
Tangshan Normal University
Henry Royce Institute
CAS - Shanghai Institute of Ceramics
Xi'an Technological University
Xi'an Jiaotong University
Sheffield Hallam University
Wuhan University of Technology
Hangzhou Dianzi University

Research output: Contribution to journal › Article › peer-review

193 Scopus citations

Abstract

Ceramic dielectrics are reported with superior energy storage performance for applications, such as power electronics in electrical vehicles. A recoverable energy density (W_rec) of ∼4.55 J cm⁻³ with η ∼ 90% is achieved in lead-free relaxor BaTiO₃-0.06Bi_2/3(Mg_1/3Nb_2/3)O₃ ceramics at ∼520 kV cm⁻¹. These ceramics may be co-fired with Ag/Pd, which constitutes a major step forward toward their potential use in the fabrication of commercial multilayer ceramic capacitors. Compared to stoichiometric Bi(Mg_2/3Nb_1/3)O₃-doped BaTiO₃ (BT), A-site deficient Bi_2/3(Mg_1/3Nb_2/3)O₃ reduces the electrical heterogeneity of BT. Bulk conductivity differs from the grain boundary only by 1 order of magnitude which, coupled with a smaller volume fraction of conducting cores due to enhanced diffusion of the dopant via A-site vacancies in the A-site sublattice, results in higher breakdown strength under an electric field. This strategy can be employed to develop new dielectrics with improved energy storage performance.

Original language	English
Pages (from-to)	43942-43949
Number of pages	8
Journal	ACS Applied Materials and Interfaces
Volume	12
Issue number	39
DOIs	https://doi.org/10.1021/acsami.0c13057
State	Published - 30 Sep 2020
Externally published	Yes

Keywords

BaTiO
Capacitors
Ceramics
Dielectric
Energy storage
Lead-free

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10.1021/acsami.0c13057

Cite this

Yang, H., Lu, Z., Li, L., Bao, W., Ji, H., Li, J., Feteira, A., Xu, F., Zhang, Y., Sun, H., Huang, Z., Lou, W., Song, K., Sun, S., Wang, G., Wang, D., & Reaney, I. M. (2020). Novel BaTiO₃‑based, Ag/Pd-compatible lead-free relaxors with superior energy storage performance. ACS Applied Materials and Interfaces, 12(39), 43942-43949. https://doi.org/10.1021/acsami.0c13057

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title = "Novel BaTiO3‑based, Ag/Pd-compatible lead-free relaxors with superior energy storage performance",

abstract = "Ceramic dielectrics are reported with superior energy storage performance for applications, such as power electronics in electrical vehicles. A recoverable energy density (Wrec) of ∼4.55 J cm−3 with η ∼ 90\% is achieved in lead-free relaxor BaTiO3-0.06Bi2/3(Mg1/3Nb2/3)O3 ceramics at ∼520 kV cm−1. These ceramics may be co-fired with Ag/Pd, which constitutes a major step forward toward their potential use in the fabrication of commercial multilayer ceramic capacitors. Compared to stoichiometric Bi(Mg2/3Nb1/3)O3-doped BaTiO3 (BT), A-site deficient Bi2/3(Mg1/3Nb2/3)O3 reduces the electrical heterogeneity of BT. Bulk conductivity differs from the grain boundary only by 1 order of magnitude which, coupled with a smaller volume fraction of conducting cores due to enhanced diffusion of the dopant via A-site vacancies in the A-site sublattice, results in higher breakdown strength under an electric field. This strategy can be employed to develop new dielectrics with improved energy storage performance.",

keywords = "BaTiO, Capacitors, Ceramics, Dielectric, Energy storage, Lead-free",

author = "Huijing Yang and Zhilun Lu and Linhao Li and Weichao Bao and Hongfen Ji and Jinglei Li and Antonio Feteira and Fangfang Xu and Yong Zhang and Huajun Sun and Zhichao Huang and Weichao Lou and Kaixin Song and Shikuan Sun and Ge Wang and Dawei Wang and Reaney, \{Ian M.\}",

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month = sep,

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doi = "10.1021/acsami.0c13057",

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AU - Yang, Huijing

AU - Lu, Zhilun

AU - Li, Linhao

AU - Bao, Weichao

AU - Ji, Hongfen

AU - Li, Jinglei

AU - Feteira, Antonio

AU - Xu, Fangfang

AU - Zhang, Yong

AU - Sun, Huajun

AU - Huang, Zhichao

AU - Lou, Weichao

AU - Song, Kaixin

AU - Sun, Shikuan

AU - Wang, Ge

AU - Wang, Dawei

AU - Reaney, Ian M.

PY - 2020/9/30

Y1 - 2020/9/30

N2 - Ceramic dielectrics are reported with superior energy storage performance for applications, such as power electronics in electrical vehicles. A recoverable energy density (Wrec) of ∼4.55 J cm−3 with η ∼ 90% is achieved in lead-free relaxor BaTiO3-0.06Bi2/3(Mg1/3Nb2/3)O3 ceramics at ∼520 kV cm−1. These ceramics may be co-fired with Ag/Pd, which constitutes a major step forward toward their potential use in the fabrication of commercial multilayer ceramic capacitors. Compared to stoichiometric Bi(Mg2/3Nb1/3)O3-doped BaTiO3 (BT), A-site deficient Bi2/3(Mg1/3Nb2/3)O3 reduces the electrical heterogeneity of BT. Bulk conductivity differs from the grain boundary only by 1 order of magnitude which, coupled with a smaller volume fraction of conducting cores due to enhanced diffusion of the dopant via A-site vacancies in the A-site sublattice, results in higher breakdown strength under an electric field. This strategy can be employed to develop new dielectrics with improved energy storage performance.

AB - Ceramic dielectrics are reported with superior energy storage performance for applications, such as power electronics in electrical vehicles. A recoverable energy density (Wrec) of ∼4.55 J cm−3 with η ∼ 90% is achieved in lead-free relaxor BaTiO3-0.06Bi2/3(Mg1/3Nb2/3)O3 ceramics at ∼520 kV cm−1. These ceramics may be co-fired with Ag/Pd, which constitutes a major step forward toward their potential use in the fabrication of commercial multilayer ceramic capacitors. Compared to stoichiometric Bi(Mg2/3Nb1/3)O3-doped BaTiO3 (BT), A-site deficient Bi2/3(Mg1/3Nb2/3)O3 reduces the electrical heterogeneity of BT. Bulk conductivity differs from the grain boundary only by 1 order of magnitude which, coupled with a smaller volume fraction of conducting cores due to enhanced diffusion of the dopant via A-site vacancies in the A-site sublattice, results in higher breakdown strength under an electric field. This strategy can be employed to develop new dielectrics with improved energy storage performance.

KW - BaTiO

KW - Capacitors

KW - Ceramics

KW - Dielectric

KW - Energy storage

KW - Lead-free

UR - https://www.scopus.com/pages/publications/85092682190

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JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 39

ER -

Novel BaTiO₃‑based, Ag/Pd-compatible lead-free relaxors with superior energy storage performance

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Keywords

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