METHOD FOR INTERCONNECTING ANODES AND CATHODES IN A FLAT CAPACITOR

• US 20090059472A1
• Filed: 11/11/2008
• Published: 03/05/2009
• Est. Priority Date: 11/03/2000
• Status: Active Grant

• Current Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Original Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Inventors: Waytashek, Brian V., Schmidt, Brian L., Sherwood, Gregory J., Poplett, James M.
• Granted Patent: US 8,451,587 B2
• Time in Patent Office: Days
• US Class Current: 361/500
• CPC Class Codes: A61N 1/3956 Implantable devices for applying electric shocks to the heart, e.g. for cardioversion
• CPC Class Codes: H01G 9/008 Terminals

Abstract

A method includes connecting together one or more anode connection members of one or more anode foils and one or more cathode connection members of one or more cathode foils and electrically isolating the one or more anode foils from the one or more cathode foils. A capacitor stack includes a plurality of cathode layers having cathode connection members and a plurality of anode layers having anode connection members. The anode connection members are connected to the cathode connection members and configured such that the anode layers can be electrically separated from the cathode layers by cutting only the anode connection members or the cathode connection members.

Claims

1. A method comprising:

stacking a plurality of cathodes layers and a plurality of anode layers such that a cathode connection member on each of the cathode layers at least partially overlays an anode connection member on each of the anode layers;

connecting the cathode connection members together with the anode connection members; and

electrically isolating the anode layers from the cathode layers.

2. The method of claim 1, wherein electrically isolating includes removing a portion of the anode connection member of each of the anode layers.

3. The method of claim 1, wherein electrically isolating includes removing at least a portion of a commonly positioned portion of the cathode connection members and the anode connection members.

4. The method of claim 1, wherein electrically isolating includes laser cutting a commonly positioned portion of each of the anode connection members and the cathode connection members.

5. The method of claim 1, wherein connecting includes connecting during a continuous connection process.

6. The method of claim 1, wherein connecting includes using an uninterrupted connecting process to connect one or more edges of a distal portion of each of the anode connection members to one or more edges of a distal portion of each of the cathode connection members.

7. A capacitor having a capacitor stack formed by a method comprising:

stacking a plurality of cathodes layers and a plurality of anode layers such that a cathode connection member on each of the cathode layers at least partially overlays an anode connection member on each of the anode layers;

connecting the cathode connection members together with the anode connection members; and

electrically isolating the anode layers from the cathode layers.

8. The capacitor formed by the method of claim 7, wherein electrically isolating includes removing a portion of the anode connection member of each of the anode layers.

9. The capacitor formed by the method of claim 7, wherein electrically isolating includes removing at least a portion of a commonly positioned portion of the cathode connection members and the anode connection members.

10. The capacitor formed by the method of claim 7, wherein electrically isolating includes removing a portion of the anode connection member such that there remains no portion of the cathode connection member adjacent the anode connection member.

11. The capacitor formed by the method of claim 7, wherein connecting includes connecting one or more edges of a distal portion of the anode connection member to one or more edges of a distal portion of the cathode connection member.

12. The capacitor formed by the method of claim 7, wherein stacking a plurality of cathodes layers and a plurality of anode layers includes stacking the cathode layers and the anode layers such that a distal section of the cathode connection member does not overlay an entire distal section of the anode connection member.

13. A capacitor stack comprising:

a plurality of cathode layers having cathode connection members; and

a plurality of anode layers having anode connection members, wherein the anode connection members are connected to the cathode connection members and configured such that the anode layers can be electrically separated from the cathode layers by cutting only the anode connection members.

14. The capacitor stack of claim 13, wherein the cathode connection member on each of the cathode layers only partially overlays the anode connection member on each of the anode layers.

15. The capacitor stack of claim 13, wherein a distal section of the cathode connection member does not overlay an entire distal section of the anode connection member.

16. The capacitor stack of claim 13, wherein the capacitor stack can be cut such that there remains no portion of any cathode connection member adjacent the anode connection members.

17. A capacitor stack comprising:

a plurality of cathode layers having cathode connection members; and

a plurality of anode layers having anode connection members, wherein the cathode connection members are connected to the anode connection members and configured such that the cathode layers can be electrically separated from the anode layers by cutting only the cathode connection members.

18. The capacitor stack of claim 17, wherein the anode connection member on each of the anode layers only partially overlays the cathode connection member on each of the cathode layers.

19. The capacitor stack of claim 17, wherein a distal section of the anode connection members does not overlay an entire distal section of the cathode connection members.

20. The capacitor stack of claim 17, wherein the capacitor stack can be cut such that there remains no portion of any anode connection member adjacent the cathode connection members.

21. A capacitor stack comprising:

a plurality of cathode layers having cathode connection members; and

a plurality of anode layers having anode connection members, wherein the anode connection members are connected to the cathode connection members and configured such that the anode layers can be electrically separated from the cathode layers such that no cathode material is located on the anode connection members.

22. The capacitor stack of claim 21, wherein the cathode connection member on each of the cathode layers only partially overlays the anode connection member on each of the anode layers.

23. The capacitor stack of claim 21, wherein a distal section of the cathode connection member does not overlay an entire distal section of the anode connection member.