Laminated structure-induced high dielectric strength and energy storage density in dielectric composites

2019 ◽  
Vol 173 ◽  
pp. 61-65 ◽  
Author(s):  
Ziming Cai ◽  
Xiaohui Wang ◽  
Bingcheng Luo ◽  
Peiyao Zhao ◽  
Chaoqiong Zhu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Dielectric Strength ◽  
Energy Storage Density ◽  
Laminated Structure ◽  
Storage Density ◽  
High Dielectric

Highly enhanced dielectric strength and energy storage density in hydantoin@BaTiO3–P(VDF-HFP) composites with a sandwich-structure

RSC Advances ◽  
2015 ◽  
Vol 5 (65) ◽  
pp. 52809-52816 ◽  
Author(s):  
Hang Luo ◽  
Dou Zhang ◽  
Lu Wang ◽  
Chao Chen ◽  
Jing Zhou ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Sandwich Structure ◽  
Dielectric Strength ◽  
Energy Storage Density ◽  
Storage Density ◽  
Discharged Energy Density

The dielectric strength and discharged energy density are largely enhanced in the sandwich-structured hydantoin@BaTiO3–P(VDF-HFP) composites.

scholarly journals High Breakdown Strength and Energy Storage Density in Aligned SrTiO3@SiO2 Core–Shell Platelets Incorporated Polymer Composites

Membranes ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 756
Author(s):  
Jie Chen ◽  
Xiaoyong Zhang ◽  
Xiao Yang ◽  
Chuanyang Li ◽  
Yifei Wang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electric Field ◽  
Breakdown Strength ◽  
Electric Displacement ◽  
High Energy ◽  
Energy Storage Density ◽  
Capacitive Energy Storage ◽  
Storage Density ◽  
Field Distortion ◽  
High Dielectric

Dielectric nanocomposites with high energy storage density (Ue) have a strong attraction to high-pulse film energy-storage capacitors. Nevertheless, low breakdown strengths (Eb) and electric displacement difference (Dmax − Drem) values of nanocomposites with incorporating the randomly distributed high dielectric constant additions, give rise to low Ue, thereby hindering the development of energy-storage capacitors. In this study, we report on newly designed SrTiO3@SiO2 platelets/PVDF textured composites with excellent capacitive energy storage performance. SrTiO3@SiO2 platelets are well oriented in the PVDF when perpendicular to the electric field with the assistance of shear force in the flow drawing process to establish microscopic barriers in an inorganic–polymer composite that is able to substantially improve the Eb of composites and enhance the Ue accordingly. Finite element simulation demonstrates that the introduction of the highly insulating SiO2 coating onto the SrTiO3 platelets effectively alleviates the interface dielectric mismatch between filler and PVDF matrix, resulting in a reduction in the interface electric field distortion. The obtained composite film with optimized paraelectric SrTiO3@SiO2 platelets (1 vol%) exhibited a maximum Dmax − Drem value of 9.14 μC cm−2 and a maximum Ue value of 14.4 J cm−3 at enhanced Eb of 402 MV m−1, which are significantly superior to neat PVDF and existing dielectric nanocomposites.

scholarly journals Improved Energy Storage Performance of All-Organic Composite Dielectric via Constructing Sandwich Structure

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 1972
Author(s):  
Mengjia Feng ◽  
Tiandong Zhang ◽  
Chunhui Song ◽  
Changhai Zhang ◽  
Yue Zhang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Sandwich Structure ◽  
Volume Ratio ◽  
High Energy ◽  
Energy Storage Density ◽  
Storage Efficiency ◽  
Storage Density ◽  
Energy Storage Efficiency ◽  
High Dielectric ◽  
High Energy Storage

Improving the energy storage density of dielectrics without sacrificing charge-discharge energy storage efficiency and reliability is crucial to the performance improvement of modern electrical and electronic systems, but traditional methods of doping high-dielectric ceramics cannot achieve high energy storage densities without sacrificing reliability and storage efficiency. Here, an all-organic energy storage dielectric composed of ferroelectric and linear polymer with a sandwich structure is proposed and successfully prepared by the electrostatic spinning method. Additionally, the effect of the ferroelectric/linear volume ratio on the dielectric properties, breakdown, and energy storage is systematically studied. The results show that the structure has good energy storage characteristics with a high energy storage density (9.7 J/cm3) and a high energy storage efficiency (78%). In addition, the energy storage density of the composite dielectric under high energy storage efficiency (90%) is effectively improved (25%). This result provides theoretical analysis and experience for the preparation of multilayer energy storage dielectrics which will promote the development and application of energy storage dielectrics.

scholarly journals Dielectric Breakdown Strength and Energy Storage Density of CCTO-ZBS Electroceramic

2020 ◽  
Vol 596 ◽  
pp. 012006
Author(s):  
Muhammad Qusyairie Saari ◽  
Julie Juliewatty Mohamed ◽  
Muhammad Azwadi Sulaiman ◽  
Mohd Fariz Abd Rahman ◽  
Zainal Arifin Ahmad ◽  
...  
Keyword(s):  
Energy Storage ◽  
Dielectric Breakdown ◽  
Breakdown Strength ◽  
Energy Storage Density ◽  
Dielectric Breakdown Strength ◽  
Storage Density
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