Enhanced energy storage properties in BNT-based ceramics with a morphotropic phase boundary modified by Sr(Mg1/3Nb2/3)O3

Liu, Tianyu; Yan, Bo; Ma, Jinxu; He, Qiang; An, Linan; Chen, Kepi

doi:10.1039/d3tc02971a

Cited by 8 publications

(1 citation statement)

References 55 publications

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“…(f) Comparing values of W rec and η between ceramics x = 0, 0.20, and 0.20 (RRP). (g) Comparison of ESP parameters between this work and other lead-free ceramics. ,,,,,,,,,,,− ,− (h) Temperature-dependent (25–160 °C) and (i) frequency-dependent (1–100 Hz) P–E loops for x = 0.20 (RRP) ceramic.…”

Section: Resultsmentioning

confidence: 94%

Excellent Energy Storage Performance Achieved in Sr(Sc_0.5Nb_0.5)O₃-Doped Bi_0.5Na_0.5TiO₃-Based Lead-Free Relaxor Ferroelectric Ceramics

Liu,

Li,

Zhao

et al. 2024

ACS Appl. Energy Mater.

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Dielectric energy storage ceramics have received significant attention as the primary component for high-pulse power capacitors. Currently, their development is limited by poor energy storage performance, which affects the miniaturization and lightweighting of electronic devices. In this study, a comprehensive optimization approach was adopted to enhance the storage performance (recoverable energy density W rec and conversion efficiency η) of 0.8Bi 0.5 Na 0.5 TiO 3 -0.2NaNbO 3 (BNT-NN) through component optimization design and repeated rolling process (RRP). A series of Sr(Sc 0.5 Nb 0.5 )O 3 (SSN) was introduced into BNT-NN to modulate the phase structure and improve the relaxation properties. The repeated rolling process was applied to refine the grain and enhance the dense property to boost the breakdown of the electric field. Following the mentioned strategy, we have succeeded in simultaneously obtaining ultrahigh W rec (∼7.22 J•cm −3 ) and outstanding η (∼95.32%) under 515 kV•cm −1 for 0.8(BNT-NN)-0.2SSN (RRP) ceramic. More importantly, the ceramic sample possesses outstanding stability over a wide range of temperatures (25−60 °C) and frequencies (1−100 Hz). This study proposes a viable route to better performance of dielectric ceramics for energy storage, and the outstanding performance of the 0.8(BNT-NN)-0.2SSN (RRP) ceramic indicates its promising applicability in high-and high-pulse-power electronic devices.

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Section: Resultsmentioning

confidence: 94%

Excellent Energy Storage Performance Achieved in Sr(Sc_0.5Nb_0.5)O₃-Doped Bi_0.5Na_0.5TiO₃-Based Lead-Free Relaxor Ferroelectric Ceramics

Liu,

Li,

Zhao

et al. 2024

ACS Appl. Energy Mater.

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Ultrahigh Energy Storage Performance of BiFeO₃‐BaTiO₃ Flexible Film Capacitor with High‐Temperature Stability via Defect Design

Hu,

Mattursun,

Feng

et al. 2024

Small Methods

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Nanoengineering polar oxide films have attracted great attention in energy storage due to their high energy density. However, most of them are deposited on thick and rigid substrates, which is not conducive to the integration of capacitors and applications in flexible electronics. Here, an alternative strategy using van der Waals epitaxial oxide dielectrics on ultra‐thin flexible mica substrates is developed and increased the disorder within the system through high laser flux. The introduction of defects can efficiently weaken or destroy the long‐range ferroelectric ordering, ultimately leading to the emergence of a large numbers of weak‐coupling regions. Such polarization configuration ensures fast polarization response and significantly improves energy storage characteristics. A flexible BiFeO3‐BaTiO3 (BF‐BT) capacitor exhibits a total energy density of 43.5 J cm−3 and an efficiency of 66.7% and maintains good energy storage performance over a wide temperature range (20–200 °C) and under large bending deformation (bending radii ≈ 2 mm). This study provides a feasible approach to improve the energy storage characteristics of dielectric oxide films and paves the way for their practical application in high‐energy density capacitors.

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Superior energy storage performance in (Bi0.5Na0.5)TiO3-based ceramics via entropy engineering strategy

Li,

Zhang,

Liu

et al. 2024

Ceramics International

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Enhanced energy storage properties in BNT-based ceramics with a morphotropic phase boundary modified by Sr(Mg_1/3Nb_2/3)O₃

Abstract: The development of dielectric capacitors for applications under medium-low fields is of great significance to the integration and miniaturization of electronic circuits.

Cited by 8 publications

References 55 publications

Excellent Energy Storage Performance Achieved in Sr(Sc_0.5Nb_0.5)O₃-Doped Bi_0.5Na_0.5TiO₃-Based Lead-Free Relaxor Ferroelectric Ceramics

Excellent Energy Storage Performance Achieved in Sr(Sc_0.5Nb_0.5)O₃-Doped Bi_0.5Na_0.5TiO₃-Based Lead-Free Relaxor Ferroelectric Ceramics

Ultrahigh Energy Storage Performance of BiFeO₃‐BaTiO₃ Flexible Film Capacitor with High‐Temperature Stability via Defect Design

Superior energy storage performance in (Bi0.5Na0.5)TiO3-based ceramics via entropy engineering strategy

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Enhanced energy storage properties in BNT-based ceramics with a morphotropic phase boundary modified by Sr(Mg1/3Nb2/3)O3

Abstract: The development of dielectric capacitors for applications under medium-low fields is of great significance to the integration and miniaturization of electronic circuits.

Cited by 8 publications

References 55 publications

Excellent Energy Storage Performance Achieved in Sr(Sc0.5Nb0.5)O3-Doped Bi0.5Na0.5TiO3-Based Lead-Free Relaxor Ferroelectric Ceramics

Excellent Energy Storage Performance Achieved in Sr(Sc0.5Nb0.5)O3-Doped Bi0.5Na0.5TiO3-Based Lead-Free Relaxor Ferroelectric Ceramics

Ultrahigh Energy Storage Performance of BiFeO3‐BaTiO3 Flexible Film Capacitor with High‐Temperature Stability via Defect Design

Superior energy storage performance in (Bi0.5Na0.5)TiO3-based ceramics via entropy engineering strategy

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Enhanced energy storage properties in BNT-based ceramics with a morphotropic phase boundary modified by Sr(Mg_1/3Nb_2/3)O₃

Excellent Energy Storage Performance Achieved in Sr(Sc_0.5Nb_0.5)O₃-Doped Bi_0.5Na_0.5TiO₃-Based Lead-Free Relaxor Ferroelectric Ceramics

Excellent Energy Storage Performance Achieved in Sr(Sc_0.5Nb_0.5)O₃-Doped Bi_0.5Na_0.5TiO₃-Based Lead-Free Relaxor Ferroelectric Ceramics

Ultrahigh Energy Storage Performance of BiFeO₃‐BaTiO₃ Flexible Film Capacitor with High‐Temperature Stability via Defect Design