Lead-free antiferroelectric energy storage dielectric ceramics

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Lead-free antiferroelectric energy storage dielectric ceramics

In this paper, the basic principle of the capacitor for electric energy storage was introduced firstly and then the research advances of BaTiO 3 -based, BiFeO 3 -based, (K 0.5 Na 0.5)NbO 3 -based lead-free relaxor ceramics and (Bi 0.5 Na 0.5)TiO 3 -based, and AgNbO 3 -based lead-free anti-ferroelectric ceramics were reviewed based on our group’s research, in which the composition design strategies of different material systems were especially summarized.

Enhancing energy storage efficiency in lead-free dielectric ceramics

Pulse power technology can compress various energy forms into electrical energy and store them in dielectric energy storage capacitors. This stored energy can be released rapidly in the form of a pulse with very short durations, ranging from milliseconds to microseconds or even nanoseconds [[1], [2], [3]].Thus, pulse power systems based on dielectric capacitors

Novel NaNbO3–Sr0.7Bi0·2TiO3 lead-free dielectric ceramics

NaNbO 3 (NN) is considered to be one of the most prospective lead-free antiferroelectric energy storage materials due to the merits of low cost, nontoxicity, and low density. Nevertheless, the electric field-induced ferroelectric phase remains dominant after the removal of the electric field, resulting in large residual polarization, which prevents NN

Boosting energy-storage performance in lead-free ceramics

The development of renewable, efficient, and clean energy storage devices has been highlighted with energy consumption soaring in recent decades [[1], [2], [3]].Dielectric capacitors with high density, fast charging speed and stable operating cycle are used in advanced power devices [[4], [5], [6]].For practical applications of pulsed capacitors, environmentally

Excellent energy storage performance of lead-based antiferroelectric

As a matter of fact, based on the relationship between polarization and the applied electric field of E, dielectric energy storage ceramics can be classified into four types of dielectric material: linear dielectric, ferroelectric (FE), relaxor ferroelectrics (RFE) and antiferroelectrics (AFEs) -based dielectric ceramic capacitors.Linear dielectrics materials such as CaTiO 3 and

Achieving Ultrahigh Energy Storage Density in

With the help of composition regulation, the ceramics not only exhibited a stable antiferroelectric phase but also underwent a structural transformation from an antiferroelectric P (Pbma) phase to R (Pnma) phase,

Novel lead-free NaNbO3-based relaxor antiferroelectric ceramics with

Compared to polymers or films, ceramic-based dielectric capacitors with perovskite structure are the promising candidates for energy storage application due to their superior thermal stability, large absolute energy storage and distinctive mechanical performance [[1], [2], [3], [4]].Among various dielectric ceramics, the antiferroelectric (AFE) ceramics exhibit excellent

Ultrahigh energy storage density in lead-free relaxor antiferroelectric

These results not only suggest that the NaNbO 3 -based relaxor antiferroelectric ceramics are promising candidates for advanced energy storage capacitors, but also provide

Lead-free ferroelectric materials: Prospective applications

Single-crystal growth has been explored as a means to improve the piezoelectric properties of lead-free materials, because, as shown for lead-based ferroelectrics, single crystals generally possess much higher dielectric and piezoelectric properties than their polycrystalline counterparts [].For example, the piezoelectric coefficients of Pb(Mg 1/3 Nb 2/3)O 3 –PbTiO 3

Designing lead-free CaTiO3-based linear-like relaxor

Dielectric ceramic capacitors, as one of three passive electronic components, are widely used in numerous cutting-edge electronic devices and high-power pulsed systems including hybrid electric vehicles, surgical lasers, directed energy weapons, and distribution devices, owing to their merits in terms of larger power density (P D), faster charge/discharge

Giant energy density and high efficiency achieved in silver

Dielectric materials have drawn increasing attention due to their high power density and fast charge-discharge speed. Although satisfactory energy storage performance has been achieved in lead-based ceramics, the exploration of suitable lead-free substitutions is highly desired since the rising environmental concerns caused by lead-based compounds.

Excellent comprehensive energy storage

NaNbO 3 (NN) is generally considered as one of the most promising lead-free antiferroelectric (AFE) perovskite materials with the advantages of low cost, low density and nontoxicity. However, the metastable

High energy storage efficiency of NBT-SBT lead-free ferroelectric ceramics

Ceramic-based dielectrics have been widely used in pulsed power capacitors owing to their good mechanical and thermal properties. Bi 0.5 Na 0.5 TiO 3-based (NBT-based) solid solutions exhibit relatively high polarization, which is considered as a promising dielectric energy storage material.However, the high remnant polarization and low energy efficiency limit

Ultrahigh capacitive energy storage through

Overall, the combined large U e of 215.8 J cm −3, high η of 80.7%, and ultrahigh E b of 7.4 MV cm −1 in the P 50 M 50 film with optimized thickness of around 100 nm (figs. S19 to S21) exceeds energy storage performance of

Significant enhancement of ferroelectric performance in lead-free

The comparable free energy between antiferroelectric (AFE) and ferroelectric (FE) phases in NaNbO 3 (NN) leads to unstable ferroelectricity, restricting future applications for energy storage devices. In this work, lead-free NN ceramics based on different sintering aids have been rigorously synthesized and the microstructural, dielectric, and ferroelectric properties of

Energy storage properties in Nd-doped AgNbTaO3 lead-free

It is crucial to discover lead-free materials with ultrahigh recoverable energy density (W rec) that can be employed in future pulse power capacitors this work, a high W rec of 4.51 J/cm 3 was successfully obtained in lead-free Nd-doped AgNb 0. 8 Ta 0. 2 O 3 antiferroelectric ceramics at an applied electric field of 290 kV/cm. It is discovered that Nd

Progress and perspectives in dielectric energy storage ceramics

Dielectric ceramic capacitors, with the advantages of high power density, fast charge-discharge capability, excellent fatigue endurance, and good high temperature stability, have been acknowledged to be promising candidates for solid-state pulse power systems. This review investigates the energy storage performances of linear dielectric, relaxor ferroelectric,

Recent development of lead-free relaxor ferroelectric and

Lead-free antiferroelectric AgNbO3: phase transitions and structure engineering for dielectric energy storage applications. J. Appl. Phys., 128 (7) Multiscale structural engineering of dielectric ceramics for energy storage applications: from bulk to thin films. Nanoscale, 12 (33) (2020), pp. 17165-17184, 10.1039/D0NR04479B.

Progress and outlook on lead-free ceramics for energy storage

With the rapid development of economic and information technology, the challenges related to energy consumption and environmental pollution have recen

AgNbO3 antiferroelectric film with high energy storage performance

The primary AFE materials for energy storage applications have been the La-doped Pb-based ceramics [7, [9], [10], [11]], in which a W rec up to 12.8 J/cm 3 has been obtained [11].However, the high toxicity of Pb-containing compounds continuously raises severe problems [12].Thus, the intensive researches have been performed on lead-free counterparts [13, 14].

Effects of sintering method on the structural, dielectric and energy

In this work, we systematically investigated the effects of single-step and two-step sintering methods on the structural, dielectric and energy storage properties of pure AgNbO 3

Antiferroelectric ceramic capacitors with high energy-storage

A typical antiferroelectric P-E loop is shown in Fig. 1.There are many researchers who increase the W re by increasing DBDS [18, 19], while relatively few studies have increased the W re by increasing the E FE-AFE pursuit of a simpler method to achieve PLZST-based ceramic with higher W re, energy storage efficiency and lower sintering temperatures, many

Local defect structure design enhanced energy storage

Antiferroelectrics (AFEs) are ideal candidates in dielectric, electromechanical, and electrothermal applications. NaNbO 3 (NN), as a lead-free antiferroelectric (AFE) material under extensive investigation, exhibits ferroelectric (FE)-like polarization–electric field (P-E) hysteresis loops, characterized by high remnant polarization and large hysteresis.

Enhanced energy storage in high-entropy

Dielectric capacitors are critical energy storage devices in modern electronics and electrical power systems 1,2,3,4,5,6 pared with ceramics, polymer dielectrics have intrinsic advantages of

Superior energy storage properties of BiFeO3 doped

Consequently, superior energy storage ceramics necessitate a higher W rec.Hence, the pursuit of a high W rec constitutes the primary research focus in the field of energy storage ceramics [10].NaNbO 3 (NN) is a lead-free antiferroelectric (AFE) dielectric material [11] NN, spontaneous polarization dipoles are oriented in opposite directions within adjacent

Excellent energy storage properties in NaNbO3-based lead-free ceramics

Antiferroelectrics (AFEs) exhibit giant potentials in energy-storage capacitors owing to their high saturated polarization (P max) and near-zero remanent polarization (P r) during electric field induced reversible AFE-ferroelectric (FE) phase transition [1], [2].The recoverable energy storage density (W rec) of dielectric capacitors can be calculated from polarization

Lead-free BiFeO3-BaTiO3 based high-Tc ferroelectric ceramics

Lead-free antiferroelectric materials, which show double hysteresis loops, are becoming increasingly popular due to their superior energy storage capacity. Ta-modified

Silver Niobate Lead-Free Antiferroelectric

Lead-free dielectric ceramics with high recoverable energy density are highly desired to sustainably meet the future energy demand. AgNbO3-based lead-free antiferroelectric ceramics with double ferroelectric hysteresis loops

NaNbO3-CaTiO3 lead-free relaxor antiferroelectric ceramics featuring

NaNbO 3 (NN)-based lead-free antiferroelectric (AFE) ceramics with ultrahigh energy-storage density (W rec) have attracted increasing attention for applications in high power electronic devices.However, large polarization hysteresis induced by the AFE-ferroelectric (FE) phase transition tends to cause high energy dissipation. In this work, a relaxor AFE

Enhancing energy storage efficiency in lead-free dielectric ceramics

Here, we demonstrate a strategy of incorporating heterovalent elements into Ba (Zr 0·1 Ti 0.9)O 3, which contributes to achieving relaxor ferroelectric ceramics and reducing

Enhanced energy storage properties in (Bi

The lead-free antiferroelectric material NaNbO 3 (NN) is highly regarded for its exceptional breakdown electric field strength (E b) and substantial recoverable energy storage density (W rec).However, the significant energy loss of NN reduces its W rec and η under a strong electric field, constraining its application in energy storage domains. This study explores a

Improved energy storage performance in NaNbO3-based ceramics

Although NaNbO 3-based antiferroelectric ceramic is considered as a potential lead-free energy storage material, the field-driven antiferroelectric-ferroelectric phase transition greatly hinders its energy storage performance.Here the strategy of synergetic phase-structure construction and relaxation regulation is proposed to solve this issue. The strategy is conducted via A/B-site

Lead-free antiferroelectric niobates AgNbO3 and

Meanwhile, recent progress on lead-free antiferroelectric ceramics, represented by AgNbO 3 and NaNbO 3, is highlighted in terms of their crystal structures, phase transitions and potential dielectric energy storage applications.

Ultrahigh energy storage density and efficiency in A/B-site

AgNbO 3-based antiferroelectric ceramics can be used to prepare dielectric ceramic materials with energy storage performance.However, their efficiency is much lower than that of relaxors, which is one of the biggest obstacles for their applications. To overcome this problem, AgNbO 3 ceramics co-doped with Eu 3+ and Ta 5+ at the A- and B-sites were prepared in this

Enhanced energy storage properties of lead-free NaNbO3-based ceramics

Lead-free ceramic-based dielectric capacitors have attracted extensive investigation due to their potential applications in pulsed power devices. However, the main drawback of dielectric ceramics is the relatively low energy storage density. Realizing stable relaxor antiferroelectric and superior energy storage properties in (Na 1-x /2 La x

Lead-free Nonlinear Dielectric Ceramics for Energy Storage

In this paper, the basic principle of the capacitor for electric energy storage was introduced firstly and then the research advances of BaTiO 3-based, BiFeO 3-based, (K 0.5 Na 0.5)NbO 3

Enhanced energy storage performance of lead-free silver

Dielectric ceramic capacitors are critical components in pulse power systems due to their ultrafast discharge capabilities and high power density [1], [2], [3].A key factor limiting the broader application of these capacitors is energy storage density [4] nsequently, significant efforts have been directed toward enhancing energy density while considering cost-effectiveness and

Relaxor/antiferroelectric composites: a solution to achieve high energy

Recently developed Na1/2Bi1/2TiO3 (NBT)-based relaxor ferroelectric ceramics are promising lead-free candidates for dielectric energy storage applications because of their non-toxicity

Energy storage properties of NaNbO3-based lead-free

NaNbO 3-based lead-free energy storage ceramics are essential candidates for next-generation pulsed power capacitors, especially under the background of energy saving and environmental protection.However, the room-temperature antiferroelectric P phase of pure NaNbO 3 ceramics limits its further development in energy storage owing to the irreversible

6 FAQs about [Lead-free antiferroelectric energy storage dielectric ceramics]

Are lead-free antiferroelectric ceramics suitable for energy storage applications?

Lead-free dielectric ceramics with high recoverable energy density are highly desired to sustainably meet the future energy demand. AgNbO 3 -based lead-free antiferroelectric ceramics with double ferroelectric hysteresis loops have been proved to be potential candidates for energy storage applications.

Are lead-free AFE energy storage ceramics possible?

Therefore, the development of new lead-free AFE energy storage ceramics is extremely urgent. In 2016, Zhao et al. reported that pure AgNbO 3 lead-free ceramics showed typical double P – E loops (antiferroelectric behavior) and a high Wrec of 1.6 J/cm 3 at 14 kV/mm [ 13 ].

What is the optimal energy storage performance for lead-free ceramics?

Finally, optimal energy storage performance is attained in 0.85Ba (Zr 0·1 Ti 0.9)O 3 -0.15Bi (Zn 2/3 Ta 1/3)O 3 (BZT-0.15BiZnTa), with an ultrahigh η of 97.37% at 440 kV/cm (an advanced level in the lead-free ceramics) and an excellent recoverable energy storage density (Wrec) of 3.74 J/cm 3.

Can a relaxor/antiferroelectric composite improve the energy storage performance of lead-free ceramics?

Furthermore, the newly developed composites exhibit better energy storage characteristics at 120 °C, with a high Wrec of 3.5 J cm −3 as well as a high η of 91%. This study demonstrates that the design of a relaxor/antiferroelectric composite provides a highly effective method to improve the energy storage performance of lead-free ceramics.

Which antiferroelectric materials have double hysteresis loops?

Lead-free antiferroelectric materials, which show double hysteresis loops, are becoming increasingly popular due to their superior energy storage capacity. Ta-modified AgNbO 3 ceramics achieving a recoverable energy density of 4.2 J/cm 3 with an efficiency (η) of 69% was reported by Zhao et al. .

Are lead-free relaxor ferroelectrics a good energy storage material?

Moreover, considering the significant environmental harm caused by the presence of lead, lead-free relaxor ferroelectrics are regarded as materials with tremendous potential to achieve high energy storage efficiency and energy storage density [, , ].

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