Lead-free AgNbO3 anti-ferroelectric ceramics with an enhanced energy storage performance using MnO2 modification

2016 ◽  
Vol 4 (36) ◽  
pp. 8380-8384 ◽  
Author(s):  
Lei Zhao ◽  
Qing Liu ◽  
Shujun Zhang ◽  
Jing-Feng Li
Keyword(s):  
Energy Storage ◽  
Ferroelectric Properties ◽  
Lead Free ◽  
Ferroelectric Ceramics ◽  
Storage Performance ◽  
Recoverable Energy ◽  
Mn Doped

Enhanced anti-ferroelectric properties and high recoverable energy densities from 2.5–2.9 J cm−3 were achieved in 0.1 wt% Mn-doped AgNbO3 ceramics over 20–180 °C.

scholarly journals Enhanced energy storage performance and fatigue resistance of Mn-doped 0.7Na0.5Bi0.5TiO3–0.3Sr0.7Bi0.2TiO3 lead-free ferroelectric ceramics

2020 ◽  
pp. 1-10
Author(s):  
Jinbo Wang ◽  
Huiqing Fan
Keyword(s):  
Energy Storage ◽  
Fatigue Resistance ◽  
Dielectric Response ◽  
Lead Free ◽  
Ferroelectric Ceramics ◽  
Relaxor Behavior ◽  
Storage Performance ◽  
Energy Storage Properties ◽  
Mn Doped ◽  
Storage Properties

The validity of Mn element on enhanced energy storage performance and fatigue resistance of Mn-doped 0.7Na0.5Bi0.5TiO3–0.3Sr0.7Bi0.2TiO3 lead-free ferroelectric ceramics (BNT–BST–xMn) is certified by doping. The effects of Mn modification on the dielectric behavior, ferroelectric, energy storage properties, and AC impedance are comprehensively investigated. It is found that the average grain size of the ceramics modified by Mn additions is reduced slightly. Moreover, the relaxor properties are evidently enhanced with the increased Mn content. The AC impedance spectra can even better clarify the dielectric response and relaxor behavior. The results suggest that both of the dielectric response and relaxor behavior are determined by defects especially concentration of the oxygen vacancy. The superior energy storage properties are realized at x = 0.05 with an energy storage density (Wrec) of 1.33 J/cm3 as well as energy storage efficiency (η) of 86.2% at 100 kV/cm, accompanied with a superior thermal stability. BNT–BST–5Mn ceramics can maintain a stable energy storage performance within 106 fatigue cycles, indicating an excellent fatigue resistance.

Significantly enhanced energy storage performance of rare-earth-modified silver niobate lead-free antiferroelectric ceramics via local chemical pressure tailoring

2019 ◽  
Vol 7 (6) ◽  
pp. 1551-1560 ◽  
Author(s):  
Song Li ◽  
Hengchang Nie ◽  
Genshui Wang ◽  
Chenhong Xu ◽  
Ningtao Liu ◽  
...  
Keyword(s):  
Rare Earth ◽  
Energy Storage ◽  
Energy Density ◽  
Lead Free ◽  
Chemical Pressure ◽  
Storage Performance ◽  
Recoverable Energy

An ultrahigh recoverable energy density was achieved in rare-earth-modified silver niobate lead-free antiferroelectric ceramics via local chemical pressure tailoring.

Phase structure and energy storage performance for BiFeO3–BaTiO3 based lead-free ferroelectric ceramics

2019 ◽  
Vol 45 (16) ◽  
pp. 20266-20275 ◽  
Author(s):  
Li-Feng Zhu ◽  
Xuan-Wei Lei ◽  
Lei Zhao ◽  
M. Irfan Hussain ◽  
Guang-Zhi Zhao ◽  
...  
Keyword(s):  
Energy Storage ◽  
Phase Structure ◽  
Lead Free ◽  
Ferroelectric Ceramics ◽  
Storage Performance
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