Dielectric material containing dipolar molecules
First Claim
1. A capacitor including at least two electrodes separated by a dielectric material, wherein said dielectric material comprises at least one N-trialkyl substituted α
- -amino acid of the formula;
##STR2## wherein R1 is chosen from the group consisting of hydrogen and a non-polar group; and
R2, R3, and R4 are alkyl groups having no more than three carbon atoms.
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Accused Products
Abstract
Dielectric materials having a high dipole moment density are provided. The high dipole moment density is achieved by the use of a substituted α-amino acid, such as N-trimethyl glycine and related homologues having nonpolar sidechain groups, with three alkyl substitutions on the nitrogen of the α-amino group. These molecules have a high dipole moment and small volume, allowing rapid rotation around the α-amino, carboxyl dipole. N-trimethyl glycine alone or in combination with one or more homologues is preferably provided as a solute in a liquid dielectric solution. Alternatively, these molecules are provided as substituents on a linear polymer.
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Citations
12 Claims
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1. A capacitor including at least two electrodes separated by a dielectric material, wherein said dielectric material comprises at least one N-trialkyl substituted α
- -amino acid of the formula;
##STR2## wherein R1 is chosen from the group consisting of hydrogen and a non-polar group; and
R2, R3, and R4 are alkyl groups having no more than three carbon atoms. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- -amino acid of the formula;
- 9. An electrical capacitor comprising a housing, a capacitance section within said housing, said section having at least one pair of spaced-apart electrodes and a dielectric material between said electrodes, wherein said dielectric material comprises a polymer component having N-trimethyl glycine as a substituent which is attached to said polymer component through one of the methyl groups of said N-trimethyl glycine.
- 11. An electric capacitor of small size and compact energy-density, capable of delivering large amounts of power, which capacitor comprises a housing, a capacitance section within said housing, said section having at least one pair of spaced-apart electrodes and a dielectric material between said electrodes, wherein said dielectric material comprises a solution including N-trimethyl glycine.
Specification