Methods of applying separator members to an electrode of a capacitor
First Claim
1. A substantially flat electrode assembly suitable for use in a capacitor cell, comprising:
- (a) at least one flat cathode layer having no holes for registration disposed therethrough, the cathode layer being formed of cathode foil and having a first perimeter of a first overall length, the cathode layer having at least a first tab projecting from the first perimeter at a first predetermined perimeter location;
(b) at least one anode member devoid of registration or alignment apertures disposed therethrough; and
(c) at least one separator envelope comprising upper and lower surfaces formed of separator material, the upper and lower surfaces of the separator envelope substantially surrounding the at least one anode member;
wherein at least one surface of separator material is disposed between the at least one cathode layer and the at least one anode member.
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Accused Products
Abstract
A sealed electrode enclosed in separator material is provided for use in a capacitor cell. The separator may either be adhered to the electrode in sheets, or may be formed into a pouch, which is used to enclose the electrode. A method of preparing the electrode sealed with separator is described in which an adhesive is used to secure the pouch to the electrode before sealing it. The prefabricated electrode and separator combination may be used in both coiled capacitor cells and flat capacitor cells that are often used in implantable medical devices. Electrodes prepared in this fashion can be efficiently and reliably aligned within the case of a capacitor cell, and have no exposed electrode surfaces that could lead to short-circuiting within the cell.
66 Citations
10 Claims
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1. A substantially flat electrode assembly suitable for use in a capacitor cell, comprising:
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(a) at least one flat cathode layer having no holes for registration disposed therethrough, the cathode layer being formed of cathode foil and having a first perimeter of a first overall length, the cathode layer having at least a first tab projecting from the first perimeter at a first predetermined perimeter location; (b) at least one anode member devoid of registration or alignment apertures disposed therethrough; and (c) at least one separator envelope comprising upper and lower surfaces formed of separator material, the upper and lower surfaces of the separator envelope substantially surrounding the at least one anode member;
wherein at least one surface of separator material is disposed between the at least one cathode layer and the at least one anode member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification