Flexible lead-free Na0.5Bi0.5TiO3–EuTiO3 solid solution film capacitors with stable energy storage performances

2020 ◽  
Vol 184 ◽  
pp. 52-56 ◽  
Author(s):  
Fei Guo ◽  
Zhifeng Shi ◽  
Bo Yang ◽  
Yaping Liu ◽  
Shifeng Zhao
Keyword(s):  
Solid Solution ◽  
Energy Storage ◽  
Lead Free ◽  
Solid Solution Film

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.

The role of PN-like junction effects in energy storage performances for Ag2O nanoparticle dispersed lead-free K0.5Na0.5NbO3-BiMnO3 films

Nanoscale ◽  
2020 ◽  
Vol 12 (14) ◽  
pp. 7544-7549 ◽  
Author(s):  
Fei Guo ◽  
Zhifeng Shi ◽  
Bo Yang ◽  
Shifeng Zhao
Keyword(s):  
Solid Solution ◽  
Energy Storage ◽  
Lead Free ◽  
Junction Structure

This work designs a PN-like junction structure by introducing Ag2O nanoparticles into lead-free 0.92K0.5Na0.5NbO3-0.08BiMnO3 solid solution films to investigate the role of PN-like junction effects in energy storage performances.

Sandwich structured lead-free ceramics based on Bi0.5Na0.5TiO3 for high energy storage

2021 ◽  
pp. 130669
Author(s):  
Fei Yan ◽  
Hairui Bai ◽  
Yunjing Shi ◽  
Guanglong Ge ◽  
Xiaofeng Zhou ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Energy ◽  
Lead Free ◽  
Lead Free Ceramics ◽  
High Energy Storage

A novel relaxor (Bi,Na,Ba)(Ti,Zr)O 3 lead‐free ceramic with high energy storage performance

2021 ◽  
Author(s):  
Muhammad Kashif Bilal ◽  
Jian Wang ◽  
Rabia Bashir ◽  
Huan Liu ◽  
Sana Ullah Asif ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Energy ◽  
Lead Free ◽  
Storage Performance ◽  
Lead Free Ceramic ◽  
High Energy Storage
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