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US 7,480,130 B2Granted
Wet electrolytic capacitor
AssigneeAVX Corporation
InventorsJames Allen Fife, Zebbie Lynn Sebald, Gang Ning
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Abstract
A wet electrolytic capacitor that includes an anode, cathode, and an electrolyte is provided. The cathode contains a plurality of metal particles disposed on a surface of a substrate and sinter bonded thereto. The metal particles have a median size of from about 20 to about 500 micrometers.
Claims34
A wet electrolytic capacitor comprising:
- an anode;
- a cathode containing a plurality of metal particles disposed on a surface of a substrate and sinter bonded thereto, wherein the metal particles have a median size of from about 20 to about 500 micrometers, further wherein a coating overlies the metal particles and the substrate, the coating comprising electrochemically-active particles;
- and
- an electrolyte disposed between the cathode and anode.
1 more element
A method for forming a wet electrolytic capacitor, the method comprising:
- applying a plurality of metal particles to a substrate of a cathode, wherein the metal particles have a median size of from about 20 to about 500 micrometers;
- sintering the metal particles;
- applying a coating formulation to the substrate after sintering the metal particles, the coating formulation comprising electrochemically-active particles;
- and
- disposing an electrolyte between the cathode and an anode.
2 more elements
Dependencies are inferred from the claim text.