Modeling, characterization and evaluation of MU100 high-energy density ceramic nanodielectric for use in pulsed power applications

2017 ◽  
Author(s):  
◽  
Alexander B. Howard

A high dielectric, nanodielectric, composite material, MU100, was developed by the University of Missouri for use in dielectric loaded antennas. Based on its dielectric strength and losses, MU100 had possible uses in the development for high energy-density capacitors. This work presents the theory behind, methods of preparation and evaluation, modeling and properties of MU100. MU100’s dielectric properties are explored in high energy-density pulsed power applications, compact high voltage capacitors. Small scale tests have shown the average dielectric strength of MU100 to be 225 kV/cm with a peak break down field of 328 kV/cm. When potted, these small-scale capacitors have lifetimes in excess of 800,000 discharges at 80% of their maximum rated field strength. This shows a remarkable development in the performance of high energy density capacitors for use in pulsed power applications.

2015 ◽  
Vol 3 (37) ◽  
pp. 9740-9747 ◽  
Author(s):  
Y. N. Hao ◽  
X. H. Wang ◽  
S. O'Brien ◽  
J. Lombardi ◽  
L. T. Li

BaTiO3/PVDF nanocomposite films with high flexibility and gradated BaTiO3 distribution structure are fabricated. These films show high dielectric constants of 20–25, a maximal discharged energy density value of 19.37 J cm−3 and dielectric breakdown strengths of up to 495 kV mm−1.


2021 ◽  
Vol 92 (3) ◽  
pp. 033542
Author(s):  
L. G. Suttle ◽  
J. D. Hare ◽  
J. W. D. Halliday ◽  
S. Merlini ◽  
D. R. Russell ◽  
...  

2018 ◽  
Vol 46 (11) ◽  
pp. 3928-3967 ◽  
Author(s):  
R. D. McBride ◽  
W. A. Stygar ◽  
M. E. Cuneo ◽  
D. B. Sinars ◽  
M. G. Mazarakis ◽  
...  

Polymers ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1433 ◽  
Author(s):  
Ahmed S. F. M. Asnawi ◽  
Shujahadeen B. Aziz ◽  
Muaffaq M. Nofal ◽  
Muhamad H. Hamsan ◽  
Mohamad A. Brza ◽  
...  

In this study, the solution casting method was employed to prepare plasticized polymer electrolytes of chitosan (CS):LiCO2CH3:Glycerol with electrochemical stability (1.8 V). The electrolyte studied in this current work could be established as new materials in the fabrication of EDLC with high specific capacitance and energy density. The system with high dielectric constant was also associated with high DC conductivity (5.19 × 10−4 S/cm). The increase of the amorphous phase upon the addition of glycerol was observed from XRD results. The main charge carrier in the polymer electrolyte was ion as tel (0.044) < tion (0.956). Cyclic voltammetry presented an almost rectangular plot with the absence of a Faradaic peak. Specific capacitance was found to be dependent on the scan rate used. The efficiency of the EDLC was observed to remain constant at 98.8% to 99.5% up to 700 cycles, portraying an excellent cyclability. High values of specific capacitance, energy density, and power density were achieved, such as 132.8 F/g, 18.4 Wh/kg, and 2591 W/kg, respectively. The low equivalent series resistance (ESR) indicated that the EDLC possessed good electrolyte/electrode contact. It was discovered that the power density of the EDLC was affected by ESR.


1997 ◽  
Vol 25 (2) ◽  
pp. 205-211 ◽  
Author(s):  
W.M. Parsons ◽  
E.O. Ballard ◽  
R.R. Bartsch ◽  
J.F. Benage ◽  
G.A. Bennett ◽  
...  

2006 ◽  
Vol 949 ◽  
Author(s):  
Pratyush Tewari ◽  
Eugene Furman ◽  
Michael T. Lanagan

ABSTRACTPoly(chloro-p- Xylene) or Parylene –C thin films are particularly attractive for dielectric as well as biomedical applications. In the current work the dielectric properties of Parylene-C thin films are investigated to form laminar composites with oxide thin films for high energy density pulsed power capacitors. Parylene-C thin films were synthesized by pyrolytic vapor decomposition polymerization of dichloro-di(p-Xylene) monomer. Annealing of films at 225°C has shown to enhance crystallinity of film. Conduction in Parylene-C thin films appears to be bulk-controlled with the hopping charges contributing to leakage current. The barrier height of 0.89eV and hopping distance of 2 - 2.5nm are physically plausible and similar to previously reported values in polymer literature.


2020 ◽  
Author(s):  
Clayton Myers ◽  
Matthew Gomez ◽  
Derek Lamppa ◽  
Timothy Webb ◽  
David Yager-Elorriaga ◽  
...  

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