Non-symmetric capacitor
AssigneeAerovox Incorporated
InventorsMartin Hudis, Robert Hutchinson, Nikola Marincic, Mulk Arora
Life of this patent
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Abstract
A capacitor having an electrochemical cathode electrode, an electrolytic anode electrode, and a substantially non-aqueous electrolyte disposed between the cathode and anode electrodes. The cathode includes a metal and a finely divided material, i.e. a conducting material with a very high ratio of surface area to volume. The anode includes an oxide forming metal and a corresponding metal oxide. The substantially non-aqueous electrolyte is in contact with the finely divided material forming a double layer electrochemical cathode capacitor. The cathode provides the foundation for interleaving a plurality of anodes with a plurality of cathodes. Insulating layers separate the interleaved anodes from the cathodes.
Claims7
An AC start capacitor comprising
- a first electrolytic anode,
- a second electrolytic anode,
- a floating electrochemical cathode interleaved between the first and second electrolytic anodes,
- an electrolyte, and
- wherein said first and second electrolytic anodes comprise a metal and a corresponding metal oxide, said electrochemical cathode comprises a metal having top and bottom surfaces coated with a finely divided material and an AC voltage is connected to said first and second electrolytic anodes.
A capacitor of the type having a cathode and an anode and an electrolyte disposed between the cathode and the anode, the capacitor comprising
- an electrochemical cathode comprising a metal coated with a finely divided material,
- an electrolytic anode comprising an oxide forming metal and a corresponding metal oxide, and
- a substantially non-aqueous liquid electrolyte in contact with the finely divided material on the cathode and the metal oxide on the anode
- wherein the anode has a larger surface area than the cathode.
A capacitor of the type having a cathode and an anode and an electrolyte disposed between the cathode and the anode, the capacitor comprising
- an electrochemical cathode comprising a metal coated with a finely divided material,
- an electrolytic anode comprising an oxide forming metal and a corresponding metal oxide, and
- a substantially non-aqueous liquid electrolyte in contact with the finely divided material on the cathode and the metal oxide on the anode
- wherein the cathode comprises an expanded nickel mesh.
A capacitor of the type having a cathode and an anode and an electrolyte disposed between the cathode and the anode, the capacitor comprising
- a plurality of electrochemical cathodes,
- a plurality of electrolytic anodes interleaved with the electrochemical cathodes,
- a plurality of separators separating the cathodes from the anodes,
- an electrolyte disposed between the cathodes and anodes, and
- wherein the plurality of anodes and cathodes form a plurality of parallel connected capacitors
- wherein each electrochemical cathode comprises a metal having top and bottom surfaces coated with a finely divided material.
A capacitor of the type having a cathode and an anode and an electrolyte disposed between the cathode and the anode, the capacitor comprising
- a plurality of electrochemical cathodes,
- a plurality of electrolytic anodes interleaved with the electrochemical cathodes,
- a plurality of separators separating the cathodes from the anodes,
- an electrolyte disposed between the cathodes and anodes, and
- wherein the plurality of anodes and cathodes form a plurality of parallel connected capacitors
- wherein the anode is formed as a stack of individual metal sheets
- further comprising a collector strip connecting the individual metal sheets to each other.
Dependencies are inferred from the claim text.