Ultrasonically coated substrate for use in a capacitor
First Claim
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1. A capacitor, which comprises:
- a) a casing;
b) a cathode comprising a porous coating of at least a first pseudocapacitive metal compound comprising a first metal provided on a substrate, wherein the coating is characterized as comprising particles formed from an ultrasonically generated aerosol consisting of the first metal contacted with the substrate;
c) an anode spaced from the porous cathode coating; and
d) an electrolyte in contact with the porous cathode coating and the anode, the casing containing the anode, the cathode and the electrolyte.
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Abstract
A deposition process for coating a substrate with an ultrasonically generated aerosol spray, is described. The resultant droplets are much smaller in size than those produced by conventional processes, thereby providing the present coating having an increased surface area. When the coated substrate is an electrode in a capacitor, a greater surface area results in an increased electrode capacitance.
140 Citations
18 Claims
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1. A capacitor, which comprises:
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a) a casing; b) a cathode comprising a porous coating of at least a first pseudocapacitive metal compound comprising a first metal provided on a substrate, wherein the coating is characterized as comprising particles formed from an ultrasonically generated aerosol consisting of the first metal contacted with the substrate; c) an anode spaced from the porous cathode coating; and d) an electrolyte in contact with the porous cathode coating and the anode, the casing containing the anode, the cathode and the electrolyte. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification