Expandable enclosure for energy storage devices

• US 20080013253A1
• Filed: 11/15/2005
• Published: 01/17/2008
• Est. Priority Date: 09/02/2005
• Status: Abandoned Application

• Current Assignee: UCAP Power, Inc.
• Original Assignee: Maxwell Technologies Incorporated (Tesla Inc.)
• Inventors: Shelton, Steve, Soliz, Raymond, Lauper, Philippe, Schneuwly, Adrian, Thrap, Guy
• Application Number:
  US11/280,974
• Publication Number:
  US 20080013253A1
• Time in Patent Office: Days
• US Class Current: 361/502
• CPC Class Codes: H01G 11/74 Terminals, e.g. extensions of current collectors
• CPC Class Codes: H01G 9/06 Mounting in containers
• CPC Class Codes: H01G 9/08 Housing; Encapsulation
• CPC Class Codes: H01G 9/14 Structural combinations or circuits for modifying, or compensating for, electric characteristics of electrolytic capacitors
• CPC Class Codes: Y02E 60/13 Energy storage using capacitors

Abstract

Electrical energy storage cells, for example, electrochemical double layer capacitor cells, are assembled into a module within an enclosure. The enclosure is built using modular construction so that it can be fitted to a variable number of cells. In exemplary embodiments, the enclosure may be expanded or reduced in size in one, two, or all three dimensions by inserting or removing additional panels. The panels may be interconnected using tongue and groove connectors.

Claims

1. A configurable module for holding a plurality of energy storage cells, comprising:

N side portions, wherein N is an integer, whereby the N side portions are configurable to accommodate more than one plurality of the energy storage cells.

2. The module of claim 1, wherein N is an even integer.

3. The module of claim 2, wherein the number of side portions can be increased or decreased as needed to accommodate a variable plurality of energy storage cells.

4. The module of claim 3, wherein when N=2, two side portions have one similar geometry;

wherein when N=4, two side portions have one similar geometry and two other side portions have a different similar geometry; and

wherein when N>

4, two side portions have a first similar geometry, two other side portions have a second similar geometry, and any other side portions have the first similar and/or the second similar geometry.

5. The module of claim 2, wherein when N=2, the side portions have one similar geometry.

6. The module of claim 2, wherein when N=4 two side portions have one similar geometry and two portions have a different similar geometry.

7. The module of claim 2, wherein when N>

4, two side portions have one similar geometry, two other side portions have a different similar geometry, and remaining side portions have a third similar geometry.

8. The module of claim-3, wherein the side portions comprise a slideable joint.

9. The module of claim 3, wherein the number of side portions can be increased or decreased by slideably inserting or removing one or more side portion from the module.

10. The module of claim 2, wherein the module further comprises a high thermal conductivity top portion and a bottom portion, where the top and bottom portion are coupled to the side portions.

11. The module of claim 6, wherein the side portions comprise a thermally conductive material.

12. The module of claim 11, wherein the material comprises a metal.

13. The module of claim 11, wherein the side portions comprise a material with a thermal conductivity that is less than that of the top and bottom portion.

14. The module of claim 13, wherein the side portions comprise a non-metal.

15. A configurable module for holding a plurality of energy storage cells, comprising:

N side portions, wherein N is an integer, wherein when N=2, two side portions have one similar geometry;

wherein when N=4, two side portions have one similar geometry and two other side portions have a different similar geometry; and

wherein when N>

4, two side portions have a first similar geometry, two other side portions have a second similar geometry, and remaining side portions have the first similar and/or the second similar geometry.

16. The module of claim 15, wherein the number of side portions can be increased or decreased as needed to accommodate a variable plurality of energy storage cells.

17. The module of claim 16, wherein the number of side portions can be increased or decreased by slideably inserting or removing one or more side portion from the module.

18. The module of claim 17, wherein the side portions comprise a slideable joint.

19. The module of claim 16, wherein the side portions comprise a non-metal.

20. A method of enclosing a plurality of energy storage devices, comprising the steps of:

determining a number of energy storage devices to be used;

determining a number of module side portions needed to enclose the number of energy storage devices to be used;

obtaining the number of side portions; and

assembling the side portions to form an enclosure module.

21. The method of claim 20, wherein obtaining the number of side portions comprises obtaining the side portions from a stock of two standardized side portions.

22. The method of claim 20, wherein assembling the side portions comprises slip fitting one side portion to another side portion.