Enhanced antiferroelectric phase stability in La-doped AgNbO3: perspectives from the microstructure to energy storage properties

Electrical energy storage systems (EESSs) with high energy density and power density are essential for the effective miniaturization of future electronic devices. Among different EESSs available in the market, dielectric capacitors relying on swift electronic and ionic polarization-based mechanisms to store and deliver energy already demonstrate high power densities. However, different intrinsic and extrinsic contributions to energy dissipations prevent ceramic-based dielectric capacitors from reaching high recoverable energy density levels. Interestingly, relaxor ferroelectric-based dielectric capacitors, because of their low remnant polarization, show relatively high energy density and thus display great potential for applications requiring high energy density properties. In this study, some of the main strategies to improve the energy density properties of perovskite lead-free relaxor systems are reviewed, including (i) chemical modification at different crystallographic sites, (ii) chemical additives that do not target lattice sites, and (iii) novel processing approaches dedicated to bulk ceramics, thick and thin films, respectively. Recent advancements are summarized concerning the search for relaxor materials with superior energy density properties and the appropriate choice of both composition and processing routes to match various applications’ needs. Finally, future trends in computationally-aided materials design are presented.

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Achieving high energy density and discharge efficiency in multi-layered PVDF–PMMA nanocomposites composed of 0D BaTiO3 and 1D NaNbO3@SiO2

Journal of Materials Chemistry C ◽

10.1039/d0tc00838a ◽

2020 ◽

Vol 8 (21) ◽

pp. 7211-7220 ◽

Cited By ~ 2

Author(s):

Qinzhao Sun ◽

Jiping Wang ◽

Lixue Zhang ◽

Pu Mao ◽

Shujuan Liu ◽

...

Keyword(s):

Energy Storage ◽

Energy Density ◽

High Energy ◽

Structure Design ◽

High Energy Density ◽

Energy Storage Properties ◽

Discharge Efficiency ◽

Storage Properties

The choice of dielectric fillers and structure design play an important role in improving the energy storage properties of polymer-based nanocomposites.

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Relaxor ferroelectric 0.9BaTiO3–0.1Bi(Zn0.5Zr0.5)O3ceramic capacitors with high energy density and temperature stable energy storage properties

Journal of Materials Chemistry C ◽

10.1039/c7tc02478a ◽

2017 ◽

Vol 5 (37) ◽

pp. 9552-9558 ◽

Cited By ~ 117

Author(s):

Qibin Yuan ◽

Fangzhou Yao ◽

Yifei Wang ◽

Rong Ma ◽

Hong Wang

Keyword(s):

Energy Storage ◽

Ferroelectric Ceramic ◽

High Energy ◽

Relaxor Ferroelectric ◽

High Energy Density ◽

Solid State Method ◽

Conventional Solid State Method ◽

Energy Storage Properties ◽

Storage Properties ◽

High Energy Storage

A relaxor ferroelectric ceramic for high energy storage applications based on 0.9BaTiO3–0.1Bi(Zn0.5Zr0.5)O3(0.9BT–0.1BZZ) was successfully fabricatedviaa conventional solid-state method.

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Significantly enhanced energy storage performance of flexible composites using sodium bismuth titanate based lead-free fillers

Journal of Materials Chemistry C ◽

10.1039/d0tc02377a ◽

2020 ◽

Vol 8 (42) ◽

pp. 14910-14918

Author(s):

Pingan Yang ◽

Lili Li ◽

Hongbin Yuan ◽

Fei Wen ◽

Peng Zheng ◽

...

Keyword(s):

Energy Storage ◽

Energy Density ◽

Bismuth Titanate ◽

High Energy ◽

High Energy Density ◽

Lead Free ◽

Sodium Bismuth Titanate ◽

Flexible Composites ◽

Storage Performance

A new lead-free antiferroelectric ceramic NBT–SBT was introduced into PVDF polymer to fabricate composites films, achieving record-high energy density of 15.3 J cm−3 at 500 MV m−1 and meeting the requirement of miniaturization and lightweight device.

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Effect of sintering temperature on the dielectric, ferroelectric and energy storage properties of SnO2-doped Bi0.5(Na0.8K0.2)0.5TiO3 lead-free ceramics

Journal of Advanced Dielectrics ◽

10.1142/s2010135x20500113 ◽

2020 ◽

Vol 10 (04) ◽

pp. 2050011

Author(s):

Nguyen Truong-Tho ◽

Le Dai Vuong

Keyword(s):

Dielectric Constant ◽

Energy Storage ◽

Sintering Temperature ◽

High Energy ◽

Lead Free ◽

Energy Storage Properties ◽

Energy Storage Efficiency ◽

High Dielectric ◽

Storage Properties ◽

High Energy Storage

Sintered lead-free [Formula: see text]([Formula: see text][Formula: see text]([Formula: see text][Formula: see text]O3 ceramics (BNKTS) have been fabricated via a solid-state reaction. The effect of sintering temperature on the structural, morphological, dielectric, ferroelectric and energy storage properties of BNKTS ceramics was investigated, and it was found that the electrical properties of the synthesized ceramics increased with the increase in the sintering temperature, and the highest values were achieved at [Formula: see text]C. The ceramics sintered at the optimized temperature of [Formula: see text]C exhibited the best physical, dielectric, ferroelectric and energy storage properties, namely, high density (the relative density, [Formula: see text][Formula: see text]g.cm[Formula: see text], approximate to 96.7% of the theoretical value), high densification factor ([Formula: see text]), high dielectric constant ([Formula: see text]), low dielectric loss (tan[Formula: see text]), highest dielectric constant ([Formula: see text]), high remanent polarization ([Formula: see text]C.cm[Formula: see text], high coercive field ([Formula: see text][Formula: see text]kV/cm), high energy storage density (0.12[Formula: see text]J/cm[Formula: see text], and high energy storage efficiency (41.7% at 46.3[Formula: see text]kV/cm).

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