Fabrication of Energy Storage Media BST/PVDF-PAn

2006 ◽  
Vol 949 ◽  
Author(s):  
Dabing Luo ◽  
Yan Guo ◽  
Hua Hao ◽  
Hanxing Liu ◽  
Shixi Ouyang

ABSTRACTPermittivity and anti-voltage ability commonly determined the energy storage density of material. Although composite could be molded easier than ceramic, its lower energy storage density prevented the material from application since the polymer usually took on poor dielectric constant. In order to enhance the energy storage performance of composite, PAn was introduced to PVDF by emulsion polymerization. SEM of the co-polymers showed that they could construct continuous media till the concentrate of aniline reached 25% while polymerizing. The permittivity of polymer rose along with the concentrate increasing of aniline and pH falling value of retreating solution. The permittivity and anti-voltage strength of composite also charged correspondingly. As a consequence, the energy storage density innovated much higher than ever. The maximum energy storage density could approach 0.9185Johr/cc.

2019 ◽  
Vol 7 (39) ◽  
pp. 12127-12138 ◽  
Author(s):  
Feng Li ◽  
Xu Hou ◽  
Tianyu Li ◽  
Renjun Si ◽  
Chunchang Wang ◽  
...  

Fine-grain induced ultrahigh energy storage density and fast discharge speed in novel Bi0.5K0.5TiO3–Ba(Mg1/3Nb2/3)O3 ceramics via a hot-pressing strategy.


2017 ◽  
Vol 5 (12) ◽  
pp. 5920-5926 ◽  
Author(s):  
Hao Pan ◽  
Yi Zeng ◽  
Yang Shen ◽  
Yuan-Hua Lin ◽  
Jing Ma ◽  
...  

We report ultrahigh energy storage density of 51 J cm−3 and good fatigue & thermal stability of BiFeO3-based lead-free dielectric films.


2019 ◽  
Vol 49 (1) ◽  
pp. 659-667
Author(s):  
Yong Chen ◽  
Yi Ke Du ◽  
Yao Chang Yue ◽  
Kang Hui Liu ◽  
Ye Chen ◽  
...  

Author(s):  
Xiaodong Sang ◽  
Xingjia Li ◽  
Dandan Zhang ◽  
Xiuli Zhang ◽  
Huiping Wang ◽  
...  

Abstract The dielectric properties of barium titanate/polyvinylidene fluoride (BT/PVDF) composites are investigated. The doped BT particles are prepared by using simple heat treatment. It is found that 1000 ℃ is the optimal temperature for the doped BT particles to improve the dielectric properties of BT/PVDF composites. Besides, we also find that the breakdown strength of the BT/PVDF composites can be significantly enhanced when the surface of the doped BT particles are pre-modified with phthalic acid or KH550. In particular, the BT/PVDF composites doped with KH550 modified BT particles have the maximum energy storage density of 4.08 J/cm3, which is 81.33 % higher than that of BT/PVDF composites doped with BT particles and without any treatment. Therefore, we can conclude that heat treatment and surface modification of doped BT particles could become new approaches to enhance the energy storage performance of the BT/PVDF composites, which has a good application prospect in the field of dielectric energy storage materials.


2019 ◽  
Vol 7 (7) ◽  
pp. 1888-1895 ◽  
Author(s):  
Bingbing Yang ◽  
Mengyao Guo ◽  
Xianwu Tang ◽  
Renhuai Wei ◽  
Ling Hu ◽  
...  

The energy storage performance of Ba2Bi4Ti5O18 thin film (left) and the atomic schematic structure of A2Bi4Ti5O18 (right).


2020 ◽  
Vol 842 ◽  
pp. 153-159
Author(s):  
Lei Cao ◽  
Ying Yuan ◽  
En Zhu Li ◽  
Shu Ren Zhang

In this work, a series of (1-x)Sr0.7Ba0.3Nb2O6-xSr0.7Bi0.2TiO3 ceramics were formulated by a phase-mixed sintering, the microstructure and energy storage performance were studied. The introduction of SBT induces the formation of equiaxed crystals leading to the denser microstructure, thus improving the dielectric breakdown strength. In addition, the enhancement of relaxor behavior improves the energy storage performance. For 0.94Sr0.7Ba0.3Nb2O6-0.06Sr0.7Bi0.2TiO3, an energy storage density of 0.49J/cm3 and an efficiency of 94.2% were achieved.


2011 ◽  
Vol 01 (02) ◽  
pp. 191-195
Author(s):  
YIQIU LI ◽  
HANXING LIU ◽  
GUANGHUI ZHAO ◽  
JING XU ◽  
YUNJIANG CUI ◽  
...  

The CaF2–4LiF additive was added into SrTiO3 ceramics in order to decrease the sintering temperature for compact pulse power application. The crystalline structure, microstructure and energy storage performance of sintered ceramics were studied. Incorporating CaF2–4LiF additive to SrTiO3 ceramics contributes to a notably enhancement of the energy storage density. The great enhancement in energy storage density occurred due to the notable increase in breakdown strength and the refinement of microstructure. With 2 at% additive, the samples exhibited an average breakdown strength of 31.8 kV/mm, and an energy storage density of 1.212 J/cm3 which is about 1.4 times higher than pure SrTiO3 .


Author(s):  
Muhammad Qusyairie Saari ◽  
Julie Juliewatty Mohamed ◽  
Muhammad Azwadi Sulaiman ◽  
Mohd Fariz Abd Rahman ◽  
Zainal Arifin Ahmad ◽  
...  

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