INTEGRAL ELECTROCHEMICAL DEVICE

• US 20090181298A1
• Filed: 01/08/2009
• Published: 07/16/2009
• Est. Priority Date: 01/10/2008
• Status: Abandoned Application

• Current Assignee: Eaglepicher Technologies LLC (Eaglepicher Corporation)
• Original Assignee: EaglePicher Energy Products Corporation
• Inventors: Farrell, Grant, Brand, Christo
• Application Number:
  US12/350,770
• Publication Number:
  US 20090181298A1
• Time in Patent Office: Days
• US Class Current: 429/178
• CPC Class Codes: B23K 2101/18 Sheet panels
• CPC Class Codes: B23K 2101/32 Wires
• CPC Class Codes: B23K 2101/40 Semiconductor devices
• CPC Class Codes: B23K 26/206 Laser sealing
• CPC Class Codes: B23K 26/21 by welding
• CPC Class Codes: H01M 50/103 prismatic or rectangular H01M50/109, H01M50/11 take precedence
• CPC Class Codes: H01M 50/186 characterised by the disposition of the sealing members
• CPC Class Codes: H01M 50/191 Inorganic material
• CPC Class Codes: H01M 50/536 characterised by the method of fixing the leads to the electrodes, e.g. by welding
• CPC Class Codes: H01M 50/54 Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
• CPC Class Codes: H01M 50/55 on the same side of the cell
• CPC Class Codes: H01M 50/553 Terminals adapted for prismatic, pouch or rectangular cells
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y10T 29/49108 Electric battery cell making

Abstract

According to various embodiments, an electrochemical device is provided that comprises an anode terminal pin electrically coupled with an anode, a cathode terminal pin electrically coupled with a cathode, and a terminal surface configured to receive the anode terminal pin and the cathode terminal pin. The electrochemical device may further comprise a shared surface that is configured to interface with the terminal surface to produce an electrode housing, and the shared surface may be configured to be shared between the integral electrochemical device and an apparatus that is configured to receive power from the integral electrochemical device

Claims

1. An integral electrochemical device, comprising:

an anode terminal pin electrically coupled with an anode;

a cathode terminal pin electrically coupled with a cathode;

a terminal surface configured to receive the anode terminal pin and the cathode terminal pin; and

a shared surface configured to interface with the terminal surface to produce an electrode housing, wherein the shared surface is configured to be shared between the integral electrochemical device and an apparatus that is configured to receive power from the integral electrochemical device.

2. The integral electrochemical device of claim 1, wherein the terminal surface and the shared surface individually comprise a different number of sides.

3. The integral electrochemical device of claim 2, wherein the terminal surface comprises one side, and wherein the shared surface comprises two sides.

4. The integral electrochemical device of claim 2, wherein the terminal surface comprises four sides, and wherein the shared surface comprises two sides.

5. The integral electrochemical device of claim 1, wherein the integral electrochemical device is a rectangular prismatic battery.

6. The integral electrochemical device of claim 1, wherein the integral electrochemical device is a D-shaped, stacked plate battery.

7. The integral electrochemical device of claim 1, wherein the anode comprises an anode hole configured to receive the anode terminal pin, and wherein the cathode comprises a cathode hole configured to receive the cathode terminal pin.

8. The integral electrochemical device of claim 7, wherein an anode material is configured to be removed around the anode hole to at least partially expose an anode substrate, wherein a cathode material is configured to be removed around the cathode hole to at least partially expose a cathode substrate, and wherein the anode terminal pin is electrically coupled with the anode substrate and the cathode terminal pin is electrically coupled with the cathode substrate.

9. The integral electrochemical device of claim 8, wherein the anode hole and the cathode hole are configured to facilitate electrical connection of the anode substrate to the anode terminal pin and of the cathode substrate to the cathode terminal pin.

10. The integral electrochemical device of claim 9, wherein the anode terminal pin is configured to be electrically coupled with the anode substrate via laser welding, and wherein the cathode terminal pin is configured to be electrically coupled with the cathode substrate via laser welding.

11. The integral electrochemical device of claim 8, wherein the anode terminal pin is configured to be electrically coupled with the anode substrate via ultrasonic welding, and wherein the cathode terminal pin is configured to be electrically coupled with the cathode substrate via ultrasonic welding.

12. The integral electrochemical device of claim 1, wherein the anode terminal pin is electrically connected to the anode without using a current collector between the anode and the anode terminal pin, and wherein the anode terminal pin is substantially perpendicular to the anode.

13. The integral electrochemical device of claim 1, wherein the cathode terminal pin is electrically connected to the cathode without using a current collector between the cathode and the cathode terminal pin, and wherein the cathode terminal pin is substantially perpendicular to the cathode.

14. The integral electrochemical device of claim 1, further comprising:

an anode current collector electrically connected between the anode and the anode terminal pin; and

a cathode current collector electrically connected between the cathode and the cathode terminal pin.

15. The integral electrochemical device of claim 14, wherein the anode terminal pin is substantially parallel to the anode, and wherein the cathode terminal pin is substantially parallel to the cathode.

16. The integral electrochemical device of claim 1, wherein the anode terminal pin is electrically connected to the terminal surface to facilitate the terminal surface being a terminal of the integral electrochemical device.

17. The integral electrochemical device of claim 1, further comprising:

a second anode;

an anode disk disposed between an anode terminal portion of the anode and a second anode terminal portion of the second anode;

a second cathode; and

a cathode disk disposed between a cathode terminal portion of the cathode and a second cathode terminal portion of the second cathode.

18. The integral electrochemical device of claim 1, further comprising:

an anode pin isolating feed through disposed between the anode terminal pin and the terminal surface; and

a cathode pin isolating feed through disposed between the cathode terminal pin and the terminal surface.

19. A medical apparatus, comprising:

an electrode stack comprising an anode and a cathode, wherein the electrode stack is configured to power the medical apparatus;

an anode terminal pin electrically coupled with the anode;

a cathode terminal pin electrically coupled with the cathode;

a terminal surface configured to receive the anode terminal pin and the cathode terminal pin; and

a shared surface configured to interface with the terminal surface to house the electrode stack.

20. A method, comprising:

forming an anode hole in an anode and a cathode hole in a cathode;

inserting an anode terminal pin through the anode hole;

inserting a cathode terminal pin through the cathode hole;

securing a terminal surface to the anode terminal pin and the cathode terminal pin; and

securing the terminal surface to a shared surface of an apparatus, wherein the anode and the cathode provide power to the apparatus.

21. The method of claim 20, further comprising cutting an angled slot in the anode and an angled slot in the cathode to facilitate an electrical connection between the anode and the anode terminal pin and between the cathode and the cathode terminal pin.

22. The method of claim 20, further comprising laser welding the anode terminal pin to the anode and the cathode terminal pin to the cathode.

23. The method of claim 20, further comprising stacking the anode and the cathode within a cell pack insulator, wherein the cell pack insulator serves as a stacking aid.

24. An electrochemical device, comprising:

an anode terminal pin electrically coupled with an anode;

a cathode terminal pin electrically coupled with a cathode;

a terminal surface configured to receive the anode terminal pin and the cathode terminal pin; and

a shared surface configured to interface with the terminal surface to produce an electrode housing, wherein the shared surface is configured to be shared between the integral electrochemical device and an apparatus that is configured to receive power from the integral electrochemical device.