High Energy Storage Efficiency with Fatigue Resistance and Thermal Stability in Lead-Free Na0.5 K0.5 NbO3 /BiMnO3 Solid-Solution Films

2017 ◽  
Vol 12 (2) ◽  
pp. 1700364 ◽  
Author(s):  
Yizhu Sun ◽  
Yunpeng Zhou ◽  
Qingshan Lu ◽  
Shifeng Zhao
Keyword(s):  
Thermal Stability ◽  
Solid Solution ◽  
Energy Storage ◽  
Fatigue Resistance ◽  
High Energy ◽  
Lead Free ◽  
Storage Efficiency ◽  
Energy Storage Efficiency ◽  
High Energy Storage

An effective approach to achieve high energy storage density and efficiency in BNT-based ceramics by doping AgNbO3

2019 ◽  
Vol 48 (48) ◽  
pp. 17864-17873 ◽  
Author(s):  
Hua Wang ◽  
Xiaoli Jiang ◽  
Xiaoqin Liu ◽  
Ruonan Yang ◽  
Yang Yang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Energy Storage ◽  
High Energy ◽  
Frequency Stability ◽  
Energy Storage Density ◽  
Storage Efficiency ◽  
Storage Density ◽  
Energy Storage Efficiency ◽  
High Energy Storage Density ◽  
High Energy Storage

The BNBLT–0.01AN ceramic with the highest energy storage density (Ws) value of ∼1.697 J cm−3 and energy storage efficiency (η) of ∼82.3% exhibits optimal thermal stability and frequency stability.

scholarly journals High energy storage efficiency and large electrocaloric effect in lead-free BaTi0.89Sn0.11O3 ceramic

2020 ◽  
Vol 46 (15) ◽  
pp. 23867-23876 ◽  
Author(s):  
Soukaina Merselmiz ◽  
Zouhair Hanani ◽  
Daoud Mezzane ◽  
Matjaž Spreitzer ◽  
Andraž Bradeško ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Energy ◽  
Lead Free ◽  
Storage Efficiency ◽  
Electrocaloric Effect ◽  
Energy Storage Efficiency ◽  
High Energy Storage

scholarly journals 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

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).

scholarly journals Constructing phase boundary in AgNbO3 antiferroelectrics: pathway simultaneously achieving high energy density and efficiency

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Nengneng Luo ◽  
Kai Han ◽  
Matthew J. Cabral ◽  
Xiaozhou Liao ◽  
Shujun Zhang ◽  
...  
Keyword(s):  
Solid Solution ◽  
Energy Storage ◽  
Phase Boundary ◽  
Dielectric Materials ◽  
High Energy ◽  
High Energy Density ◽  
Lead Free ◽  
Scanning Transmission ◽  
Structure Heterogeneity ◽  
High Energy Storage

Abstract Dielectric capacitors with high energy storage density (Wrec) and efficiency (η) are in great demand for high/pulsed power electronic systems, but the state-of-the-art lead-free dielectric materials are facing the challenge of increasing one parameter at the cost of the other. Herein, we report that high Wrec of 6.3 J cm-3 with η of 90% can be simultaneously achieved by constructing a room temperature M2–M3 phase boundary in (1-x)AgNbO3-xAgTaO3 solid solution system. The designed material exhibits high energy storage stability over a wide temperature range of 20–150 °C and excellent cycling reliability up to 106 cycles. All these merits achieved in the studied solid solution are attributed to the unique relaxor antiferroelectric features relevant to the local structure heterogeneity and antiferroelectric ordering, being confirmed by scanning transmission electron microscopy and synchrotron X-ray diffraction. This work provides a good paradigm for developing new lead-free dielectrics for high-power energy storage applications.

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