Energy Storage Cell Support Separator and Cooling System for a Multiple Cell Module

• US 20070020513A1
• Filed: 09/26/2006
• Published: 01/25/2007
• Est. Priority Date: 10/04/2001
• Status: Abandoned Application

• Current Assignee: Sheppard, Mullin, Richter & Hampton LLP
• Original Assignee: ISE Incorporated (ISE Group of Companies)
• Inventors: Stone, Kevin, Wilk, Michael, Medina, Alfonso
• Application Number:
  US11/535,433
• Publication Number:
  US 20070020513A1
• Time in Patent Office: Days
• US Class Current: 429/120
• CPC Class Codes: B60K 2001/005 the electric storage means
• CPC Class Codes: B60L 58/26 by cooling
• CPC Class Codes: H01G 11/10 Multiple hybrid or EDL capacitors, e.g. arrays or modules housings, cases, encapsulations or mountings thereof H01G11/78
• CPC Class Codes: H01G 11/82 Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations
• CPC Class Codes: H01G 2/08 Cooling arrangements; Heating arrangements; Ventilating arrangements
• CPC Class Codes: H01G 9/0003 Protection against electric or thermal overload; cooling arrangements; means for avoiding the formation of cathode films H01G9/12 takes precedence
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/643 Cylindrical cells
• CPC Class Codes: H01M 10/653 characterised by electrically insulating or thermally conductive materials
• CPC Class Codes: H01M 10/655 Solid structures for heat exchange or heat conduction
• CPC Class Codes: H01M 10/6553 Terminals or leads
• CPC Class Codes: H01M 10/6554 Rods or plates
• CPC Class Codes: H01M 10/6557 arranged between the cells
• CPC Class Codes: H01M 10/6567 Liquids
• CPC Class Codes: H01M 10/6568 characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
• CPC Class Codes: H01M 50/505 comprising a single busbar
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02E 60/13 Energy storage using capacitors
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

A system for mounting and cooling energy storage cell canisters within a multi-cell energy storage module includes a plurality of inner interconnections to electrically connect the energy storage cell canisters end-to-end in strings of energy storage cell canisters; a plurality of bus bar interconnections to electrically connect the strings of energy storage cell canisters; and a plurality of cooling line separator inserts to position and support the plurality of inner interconnections for positioning and supporting the storage cell canisters.

Claims

1. A system for mounting and cooling energy storage cell canisters within a multi-cell energy storage module, comprising:

a plurality of inner interconnections to electrically connect the energy storage cell canisters end-to-end in strings of energy storage cell canisters;

a plurality of bus bar interconnections to electrically connect the strings of energy storage cell canisters; and

a plurality of cooling line separator inserts to position and support the plurality of inner interconnections for positioning and supporting the storage cell canisters, the plurality of cooling line separator inserts including fluid transfer lines for carrying cooling media therethrough for removing heat from the plurality of inner interconnections.

2. The system of claim 1, wherein the energy storage cell canisters have a central longitudinal axis, and the plurality of cooling line separator inserts extend substantially parallel relative to central longitudinal axis of the energy storage cell canisters.

3. The system of claim 1, wherein the plurality of cooling line separator inserts are extruded aluminum.

4. The system of claim 1, wherein the energy storage cell canisters have an outer surface, and the plurality of shaped separator inserts are shaped to match and receive the outer surface of the plurality of inner interconnections.

5. The system of claim 1, wherein the plurality of shaped separator inserts include a generally triangular cross-section.

6. The system of claim 1, wherein the plurality of shaped separator inserts include an elongated, substantially hexagonal configuration.

7. The system of claim 1, wherein the energy storage cell canisters are ultracapacitors.

8. The system of claim 1, wherein the energy storage cell canisters are batteries.

9. The system of claim 1, wherein the energy storage cell canisters are shaped as a cylinder.

10. The system of claim 1, wherein the energy storage cell canisters are shaped as square cans.

11. The system of claim 1, wherein the plurality of shaped separator inserts contact the outer surface of the plurality of inner interconnections, but do not contact the energy storage cell canisters.

12. The system of claim 1, wherein the plurality of inner interconnections have a disc shape.

13. The system of claim 1, wherein the plurality of inner interconnections include an outer periphery with a heat-conductive, electrically insulative material thereon.

14. The system of claim 1, wherein the energy storage cell canisters include end terminals, and the plurality of inner interconnections connect the end terminals of the energy storage cell canisters for connecting the energy storage cell canisters end-to-end in strings of energy storage cell canisters.

15. The system of claim 14, wherein the energy storage cell canisters include a diameter, and the plurality of inner interconnections include cylindrical discs with a diameter slightly larger than the diameter of the energy storage cell canisters.

16. The system of claim 14, wherein the inner interconnects includes discs with one or more holes therein to receive the end terminals of the energy storage cell canisters.

20. The system of claim 1, wherein the plurality of interconnections include at least one of a liquid, paste, or gel grease to at least one of enhance the electrical and thermal conductivity, and to protect against corrosion and thread connection loosening.

17. A multi-cell energy storage module, comprising:

a plurality of energy storage cell canisters; and

a system for mounting and cooling the energy storage cell canisters including multiple fluid transfer lines for carrying cooling media therethrough for removing heat from the plurality of energy storage cell canisters.

18. The multi-cell energy storage module of claim 17, further including a plurality of inner interconnections to electrically connect the energy storage cell canisters end-to-end in strings of energy storage cell canisters, and the system for mounting and cooling the energy storage cell canisters position and support the plurality of inner interconnections without contact with the energy storage cell canisters for positioning and supporting the storage cell canisters in the multi-cell energy storage module.

19. The multi-cell energy storage module of claim 18, wherein the plurality of interconnections include at least one of a liquid, paste, or gel grease to at least one of enhance the electrical and thermal conductivity, and to protect against corrosion and thread connection loosening.

21. A system for mounting, positioning, and separating energy storage cell canisters within a multi-cell energy storage module comprising:

a plurality of bus bar interconnections to electrically connect the energy storage cell canisters;

a plurality of vertical or horizontal insulating separator inserts shaped to match the shape of the energy storage cell canisters and rigidly support the energy storage cell canisters in exact cell position relative to each other;

a module outside enclosure; and

an assembly of the energy storage cell canisters, separator inserts installed near the ends of the energy storage cell canisters, and bus bar interconnections within the module outside enclosure.

22. The system of claim 21, wherein the separator inserts are made of high-temperature, electrically insulating nylon plastic.

23. The system of claim 21, wherein the separator inserts have holes to provide wiring access to internal circuit boards.

24. The system of claim 21, wherein the separator inserts have slots to support and position internal circuit boards.

25. The system of claim 21, wherein the bus bar interconnections are heated to expand the holes, placed over the energy storage cell canister terminals, and allowed to cool for a shrunken press fit.

26. The system of claim 21, wherein the multiple-cell energy storage module is a Maxwell MC BMOD Energy Series 48V BOOSTCAP®

brand Utracapacitor Module made from Maxwell BOOSTCAP®

brand ultracapacitor energy storage cell canisters.

27. The system of claim 21, wherein the separator inserts are different sizes to accommodate different canister spacing.

28. The system of claim 21, wherein the bus bar connections are different sizes to accommodate different canister spacing.

29. The system of claim 21, wherein the assembly includes inside printed circuit boards.

30. The system of claim 29, wherein the printed circuit boards perform one or more of equalization and balancing circuits for the energy storage cell canisters connected in series within the module, and communication circuits for reporting status external to the module.

31. The system of claim 29, wherein the printed circuit boards have insulated pads to position and insulate the circuit board between the energy storage cell canisters.

32. The system of claim 30, wherein wires from equalization and balancing circuits extend from the printed circuit boards, pass through holes in the separators and are one of riveted, screwed, soldered, and welded to the bus bar interconnections.