Effect of K2O addition on glass structure, complex impedance and energy storage density of NaNbO3 based glass-ceramics

2019 ◽  
Vol 785 ◽  
pp. 350-355 ◽  
Author(s):  
Xin Peng ◽  
Yongping Pu ◽  
Xinyi Du
Keyword(s):  
Energy Storage ◽  
Glass Structure ◽  
Complex Impedance ◽  
Glass Ceramics ◽  
Energy Storage Density ◽  
Storage Density

Effect of Gd2O3/BaF2 Addition on Dielectric Behavior and Energy Storage Properties of Strontium Barium Niobate Glass-Ceramics

2014 ◽  
Vol 633 ◽  
pp. 422-426
Author(s):  
Jun Song ◽  
Guo Hua Chen ◽  
Yu Tang
Keyword(s):  
Energy Storage ◽  
Breakdown Strength ◽  
Glass Ceramics ◽  
Phase Evolution ◽  
High Energy ◽  
Dielectric Behavior ◽  
Energy Storage Density ◽  
Storage Density ◽  
Energy Storage Properties ◽  
Storage Properties

SrO–BaO–Nb2O5–B2O3system glass-ceramics with Gd2O3/BaF2addition have been prepared by controlled crystallization method. The effect of Gd2O3/BaF2addition on the phase evolution, dielectric properties and energy storage properties has been investigated. The addition of Gd2O3/BaF2to the glass-ceramics changes the dielectric property and energy storage density. The glass-ceramics with 0.5 mol% Gd2O3and 4.5mol% BaF2heat treated at 850°C/3h possesses a dielectric constant of 125, a breakdown strength of 1055 kV/mm and energy storage density of 6.16J/cm3, which are promising materials for high energy storage density dielectrics.

Ultrahigh energy storage density and instantaneous discharge power density in BaO–PbO–Na2O–Nb2O5–SiO2–Al2O3 glass-ceramics

2018 ◽  
Vol 6 (46) ◽  
pp. 12608-12614 ◽  
Author(s):  
Shujian Wang ◽  
Jia Tian ◽  
Jingran Liu ◽  
Ke Yang ◽  
Bo Shen ◽  
...  
Keyword(s):  
Energy Storage ◽  
Power Density ◽  
Glass Ceramics ◽  
Discharge Power ◽  
Energy Storage Density ◽  
Ultrahigh Energy ◽  
Storage Density ◽  
Instantaneous Power ◽  
Instantaneous Discharge

An ultrahigh energy storage density Es of 20.7 J cm−3 and a maximum instantaneous power density of 78.2 MW cm−3 were obtained in BPNN-AS glass-ceramics.

Effects of BaF2 Addition on Properties of Strontium Barium Niobate Based Glass-Ceramics for Energy Storage Capacitors

2012 ◽  
Vol 535-537 ◽  
pp. 1619-1622
Author(s):  
Guo Hua Chen ◽  
Tao Yong Liu ◽  
Yun Yang ◽  
Wen Jun Zhang
Keyword(s):  
Energy Storage ◽  
Breakdown Strength ◽  
Glass Ceramics ◽  
Dielectric Materials ◽  
High Energy ◽  
Energy Storage Density ◽  
Secondary Phases ◽  
Strontium Barium Niobate ◽  
Strontium Barium ◽  
Storage Density

The influences of BaF2 addition on phase composition, electrical property and energy storage density in strontium barium niobate based glass-ceramics prepared using melt-casting followed by controlled crystallization were investigated. The results indicate that adding 1wt% BaF2 improves the precipitation of Ba0.27Sr0.75Nb2O6 phase. However, the secondary phases, Ba3SrNb2O9 and BaBF5 are formed as the amount of BaF2 exceeds 3wt% when heated at 800°C/3h+900°C/3h in the glass-ceramics. The dielectric constant, microstructure, volume resistivity and breakdown strength are related to BaF2 content. The maximum breakdown strength (1450 kV/cm) and the energy storage density (5.1J/cm3) can be obtained in the glass-ceramic sample with 1wt% BaF2 addition, which would be suitable to be used as the dielectric materials for high energy storage capacitors.

Enhanced energy storage density and discharge efficiency in the strontium sodium niobate-based glass-ceramics

2016 ◽  
Vol 687 ◽  
pp. 280-285 ◽  
Author(s):  
Haitao Wang ◽  
Jinhua Liu ◽  
Jiwei Zhai ◽  
Bo Shen ◽  
Shaomei Xiu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Glass Ceramics ◽  
Energy Storage Density ◽  
Sodium Niobate ◽  
Storage Density ◽  
Discharge Efficiency

Effect of K 2 O content on breakdown strength and energy-storage density in K 2 O-BaO-Nb 2 O 5 -SiO 2 glass-ceramics

2017 ◽  
Vol 43 (5) ◽  
pp. 4183-4187 ◽  
Author(s):  
Haitao Wang ◽  
Jinhua Liu ◽  
Jiwei Zhai ◽  
Bo Shen ◽  
Zhongbin Pan ◽  
...  
Keyword(s):  
Energy Storage ◽  
Breakdown Strength ◽  
Glass Ceramics ◽  
Energy Storage Density ◽  
Storage Density

Microstructures and Energy Storage Properties of Sr0.5Ba0.5Nb2O6 Ceramics with BaO–B2O3–SiO2 Glass Addition

2016 ◽  
Vol 852 ◽  
pp. 883-888 ◽  
Author(s):  
Yong Liu ◽  
Chang Lai Yuan ◽  
Xing Xing Zhou ◽  
Liu Fang Meng ◽  
Chang Rong Zhou ◽  
...  
Keyword(s):  
Energy Storage ◽  
Breakdown Strength ◽  
Tungsten Bronze ◽  
Glass Ceramics ◽  
High Energy ◽  
Energy Storage Density ◽  
Glass Addition ◽  
Storage Density ◽  
Energy Storage Properties ◽  
Storage Properties

Sr0.5Ba0.5Nb2O6 (SBN) ceramics with the BaO–B2O3–SiO2 (BBS) glasses have been successfully produced for high energy-storage density capacitor applications. The phase evolution, microstructures, dielectric properties and energy storage properties of the SBN-based glass ceramics were investigated. X-ray diffraction analysis revealed all ceramic samples were of tetragonal tungsten bronze-type structures. As the mass ratio of glass in the glass ceramics increased from 0.1wt.% to 10 wt.%, the dielectric constant of the glass ceramics increased initially and then decreased with the increasing glass content. Compared to pure Sr0.5Ba0.5Nb2O6 ceramics, the glass ceramics with a small amount of BBS glass addition illustrated better energy storage properties. The glass-ceramic with 0.5wt. % BBS glass addition showed the highest breakdown strength of 194 kV/cm and a maximum energy storage density of 0.286 J/cm3.

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