Lead-free KNN-based ceramics incorporated with Bi(Zn2/3Nb1/3)O3 possessing excellent optical transmittance and superior energy storage density

Xuewen Peng; Bin Yang; Danjiang Deng; Zhiwei Cai; Xi Kong; Letao Yang; Jinming Guo

doi:10.1016/j.materresbull.2023.112294

Lead-free KNN-based ceramics incorporated with Bi(Zn_2/3Nb_1/3)O₃ possessing excellent optical transmittance and superior energy storage density

Xuewen Peng
, Bin Yang
, Danjiang Deng
, Zhiwei Cai
, Xi Kong^*
, Letao Yang
, Jinming Guo

^*Corresponding author for this work

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

22 Citations (Scopus)

Abstract

The application of lead-free dielectric ceramics for energy storage has received extensive attention because of their remarkable potential as pulse capacitors in power electronic devices. The current study developed a strategy for improving the energy storage performance of (K_0.5Na_0.5)NbO₃ (KNN)-based ceramics by incorporating Bi(Zn_2/3Nb_1/3)O₃ to reduce grain size, increase dielectric breakdown strength, and enhance ferroelectric relaxation degree. The resulting 0.87KNN–0.13BZN ceramics exhibited a high energy density (7.4 J/cm³) and moderate energy efficiency (74%) at an ultrahigh electric field (750 kV/cm) as well as excellent optical properties. Therefore, the 0.87KNN–0.13BZN ceramic is a promising candidate for pulse capacitors, providing a feasible approach for the development of new lead-free energy storage materials.

Original language	English
Article number	112294
Journal	Materials Research Bulletin
Volume	165
DOIs	https://doi.org/10.1016/j.materresbull.2023.112294
Publication status	Published - Sept 2023
Externally published	Yes

Keywords

Energy storage
Ferroelectric relaxation
KNN
Lead-free ceramics
Optical transmittance

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10.1016/j.materresbull.2023.112294

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@article{b8bacd0a36aa40b88311ed283062148a,

title = "Lead-free KNN-based ceramics incorporated with Bi(Zn2/3Nb1/3)O3 possessing excellent optical transmittance and superior energy storage density",

abstract = "The application of lead-free dielectric ceramics for energy storage has received extensive attention because of their remarkable potential as pulse capacitors in power electronic devices. The current study developed a strategy for improving the energy storage performance of (K0.5Na0.5)NbO3 (KNN)-based ceramics by incorporating Bi(Zn2/3Nb1/3)O3 to reduce grain size, increase dielectric breakdown strength, and enhance ferroelectric relaxation degree. The resulting 0.87KNN–0.13BZN ceramics exhibited a high energy density (7.4 J/cm3) and moderate energy efficiency (74\%) at an ultrahigh electric field (750 kV/cm) as well as excellent optical properties. Therefore, the 0.87KNN–0.13BZN ceramic is a promising candidate for pulse capacitors, providing a feasible approach for the development of new lead-free energy storage materials.",

keywords = "Energy storage, Ferroelectric relaxation, KNN, Lead-free ceramics, Optical transmittance",

author = "Xuewen Peng and Bin Yang and Danjiang Deng and Zhiwei Cai and Xi Kong and Letao Yang and Jinming Guo",

note = "Publisher Copyright: {\textcopyright} 2023",

year = "2023",

month = sep,

doi = "10.1016/j.materresbull.2023.112294",

language = "English",

volume = "165",

journal = "Materials Research Bulletin",

issn = "0025-5408",

publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - Lead-free KNN-based ceramics incorporated with Bi(Zn2/3Nb1/3)O3 possessing excellent optical transmittance and superior energy storage density

AU - Peng, Xuewen

AU - Yang, Bin

AU - Deng, Danjiang

AU - Cai, Zhiwei

AU - Kong, Xi

AU - Yang, Letao

AU - Guo, Jinming

PY - 2023/9

Y1 - 2023/9

N2 - The application of lead-free dielectric ceramics for energy storage has received extensive attention because of their remarkable potential as pulse capacitors in power electronic devices. The current study developed a strategy for improving the energy storage performance of (K0.5Na0.5)NbO3 (KNN)-based ceramics by incorporating Bi(Zn2/3Nb1/3)O3 to reduce grain size, increase dielectric breakdown strength, and enhance ferroelectric relaxation degree. The resulting 0.87KNN–0.13BZN ceramics exhibited a high energy density (7.4 J/cm3) and moderate energy efficiency (74%) at an ultrahigh electric field (750 kV/cm) as well as excellent optical properties. Therefore, the 0.87KNN–0.13BZN ceramic is a promising candidate for pulse capacitors, providing a feasible approach for the development of new lead-free energy storage materials.

AB - The application of lead-free dielectric ceramics for energy storage has received extensive attention because of their remarkable potential as pulse capacitors in power electronic devices. The current study developed a strategy for improving the energy storage performance of (K0.5Na0.5)NbO3 (KNN)-based ceramics by incorporating Bi(Zn2/3Nb1/3)O3 to reduce grain size, increase dielectric breakdown strength, and enhance ferroelectric relaxation degree. The resulting 0.87KNN–0.13BZN ceramics exhibited a high energy density (7.4 J/cm3) and moderate energy efficiency (74%) at an ultrahigh electric field (750 kV/cm) as well as excellent optical properties. Therefore, the 0.87KNN–0.13BZN ceramic is a promising candidate for pulse capacitors, providing a feasible approach for the development of new lead-free energy storage materials.

KW - Energy storage

KW - Ferroelectric relaxation

KW - KNN

KW - Lead-free ceramics

KW - Optical transmittance

UR - https://www.scopus.com/pages/publications/85153506779

U2 - 10.1016/j.materresbull.2023.112294

DO - 10.1016/j.materresbull.2023.112294

M3 - Article

AN - SCOPUS:85153506779

SN - 0025-5408

VL - 165

JO - Materials Research Bulletin

JF - Materials Research Bulletin

M1 - 112294

ER -

Lead-free KNN-based ceramics incorporated with Bi(Zn_2/3Nb_1/3)O₃ possessing excellent optical transmittance and superior energy storage density

Abstract

Keywords

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