Implantable energy storage device including a connection post to connect multiple electrodes
First Claim
1. An apparatus, comprising:
- a capacitor case sealed to retain electrolyte;
a first electrode disposed in the capacitor case, the first electrode comprising a substrate with a sintered portion on a side of the substrate, the sintered portion bordering a connection portion on the side of the substrate, the connection portion substantially free of sintering;
a connection post connected to the substrate at the connection portion, wherein the connection post comprises an elongate post that is pierced through the connection portion;
a first electrode terminal disposed on an exterior of the capacitor case in electrical communication with the connection post and the first electrode;
a second electrode disposed in the capacitor case;
a separator disposed between the second electrode and a first electrode; and
a second electrode terminal disposed on an exterior of the capacitor case and in electrical communication with the second electrode, with the first electrode terminal and the second electrode terminal electrically isolated from one another;
wherein the case includes a dish portion and lid portion, with the connection post fixed to the dish portion and extending out of an interior of the dish portion, wherein the connection post is capped with an electrically insulative cap.
1 Assignment
0 Petitions
Accused Products
Abstract
An example includes a capacitor case sealed to retain electrolyte, at least one anode disposed in the capacitor case, the at least one anode comprising a sintered portion disposed on a substrate, an anode conductor coupled to the substrate in electrical communication with the sintered portion, the anode conductor sealingly extending through the capacitor case to an anode terminal disposed on the exterior of the capacitor case with the anode terminal in electrical communication with the sintered portion, a second electrode disposed in the capacitor case, a separator disposed between the second electrode and the anode and a second electrode terminal disposed on an exterior of the capacitor case and in electrical communication with the second electrode, with the anode terminal and the second electrode terminal electrically isolated from one another.
113 Citations
18 Claims
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1. An apparatus, comprising:
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a capacitor case sealed to retain electrolyte; a first electrode disposed in the capacitor case, the first electrode comprising a substrate with a sintered portion on a side of the substrate, the sintered portion bordering a connection portion on the side of the substrate, the connection portion substantially free of sintering; a connection post connected to the substrate at the connection portion, wherein the connection post comprises an elongate post that is pierced through the connection portion; a first electrode terminal disposed on an exterior of the capacitor case in electrical communication with the connection post and the first electrode; a second electrode disposed in the capacitor case; a separator disposed between the second electrode and a first electrode; and a second electrode terminal disposed on an exterior of the capacitor case and in electrical communication with the second electrode, with the first electrode terminal and the second electrode terminal electrically isolated from one another; wherein the case includes a dish portion and lid portion, with the connection post fixed to the dish portion and extending out of an interior of the dish portion, wherein the connection post is capped with an electrically insulative cap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system, comprising:
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a hermetically sealed device housing; a battery disposed in the hermetically sealed device housing; a capacitor disposed in the hermetically sealed device housing, the capacitor comprising; a capacitor case sealed to retain electrolyte; a first electrode disposed in the capacitor case, the first electrode comprising a substrate with a sintered portion on a side of the substrate, the sintered portion bordering a connection portion on the side of the substrate, the connection portion substantially free of sintering; a connection post connected to the substrate at the connection portion, wherein the connection post comprises an elongate post that is pierced through the connection portion; a first electrode terminal disposed on an exterior of the capacitor case in electrical communication with the connection post and the first electrode; a second electrode disposed in the capacitor case; a separator disposed between the second electrode and a first electrode; and a second electrode terminal disposed on an exterior of the capacitor case and in electrical communication with the second electrode, with the first electrode terminal and the second electrode terminal electrically isolated from one another; wherein the case includes a dish portion and lid portion, with the connection post fixed to the dish portion and extending out of an interior of the dish portion, wherein the connection post is capped with an electrically insulative cap; and an electronic cardiac rhythm management circuit coupled to the battery and the capacitor and adapted to charge the capacitor with the battery and to discharge the capacitor to provide a therapeutic defibrillation pulse. - View Dependent Claims (12, 13, 14, 15)
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16. A method of constructing a capacitor, comprising:
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forming a first electrode by sintering a material onto a portion of a side of a substrate, the material bordering a connection portion on the side, the connection portion substantially free of the material; stacking the first electrode onto an connection post by connecting the substrate at the connection portion with an connection post, with the first electrode in electrical communication with the connection post; stacking a separator onto the first electrode; stacking a second electrode onto the separator; disposing the first electrode, the separator, the second electrode and the connection post into a capacitor case; electrically coupling the first electrode and the connection post to a first terminal disposed on an exterior of the capacitor case; electrically coupling the second electrode to a second terminal disposed on the exterior of the capacitor case, the second terminal electrically isolated from the first terminal; filling the capacitor case with an electrolyte; and sealing the electrolyte in the capacitor case; and further comprising sintering a plurality of sintered portions onto a web in a nested configuration, with at least a first sintered portion having a different area than a second sintered portion. - View Dependent Claims (17, 18)
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Specification