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US 11,673,353 B2Granted
High-energy density nanocomposite capacitor
AssigneePowdermet, Inc.
InventorsAndrew Sherman, Haixong Tang, Brian Doud
Life of this patent
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Abstract
A composite film having a high dielectric permittivity engineered particles dispersed in a high breakdown strength polymer material to achieve high energy density.
Claims30
A composite film comprising a polymer material and a plurality of particles of dielectric permittivity ceramic filler;
- said dielectric permittivity ceramic filler having a core-shell structure;
- a core of said core-shell structure having a different composition than a shell of said core-shell structure;
- said core includes ceramic material that includes two or more materials selected from the group consisting of barium, calcium, copper, lead, magnesium, strontium, niobium, titanium, and zirconium;
- at least one portion of said dielectric permittivity ceramic filler formed of cores that have been sintered at a first temperature and another portion of said dielectric permittivity ceramic filler formed of cores that have been sintered at a second temperature, and wherein said first and second temperatures are different temperatures;
- said shell formed of one or more materials selected from the group consisting of Al2O3, SiO2, Si3N4, MgO, aluminosilicate, mica, and carbon;
- at least one portion of said dielectric permittivity ceramic filler is formed of cores wherein said ceramic material has been doped to include one or more elements selected from the group consisting of Nd, Ca, Mn, and/or Y.
3 more elements
Dependencies are inferred from the claim text.