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US 2007/0183119 A1Published application
Hv capacitor and testing method
AssigneeMaxwell Technologies, Inc.
InventorsCedric Scheidegger, Pocol Sorin, Meyer Gerald
Life of this patent
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Abstract
A high voltage capacitor design is provided that provides improved performance. The high voltage capacitor includes a stack of mechanically joined capacitor cells, which in one variant utilize a separator formed of two layers of paper. In one version, the high voltage capacitor may be used as a capacitative voltage divider.
Claims25
A capacitor, comprising:
- a plurality of interconnected capacitor cells, each capacitor cell including an aluminum foil, wherein the aluminum foil of a first capacitor cell is connected to the aluminum foil of a second capacitor cell by a mechanically formed bond.
A high voltage capacitor, comprising:
- at least one capacitor cell, each capacitor cell including an insulator comprising polypropylene, two or more layers of separator, and a conductor, wherein the insulator is disposed over the two or more layers of separator, and the two or more layers of separator are disposed over the conductor.
A method of making a capacitor, comprising the steps of:
- providing a conductor comprising a foil;
- providing a separator over the foil conductor;
- providing an insulator over the separator;
- rolling the foil conductor, separator, and insulator to form a capacitor cell;
- and
- mechanically forming a bond between the foil conductor and a foil conductor of another similarly formed capacitor cell.
3 more elements
Dependencies are inferred from the claim text.