Method of operating an electrical energy storage device using microchannels during charge and discharge

• US 20100304256A1
• Filed: 05/26/2009
• Published: 12/02/2010
• Est. Priority Date: 05/26/2009
• Status: Active Grant

• Current Assignee: Enterprise Science Fund, LLC (Intellectual Ventures LLC)
• Original Assignee: Searete LLC (Intellectual Ventures LLC)
• Inventors: Wood, Lowell L. Jr., Hyde, Roderick A., Kare, Jordin T., Chan, Alistair K.
• Granted Patent: US 8,080,326 B2
• Time in Patent Office: Days
• US Class Current: 429/433
• CPC Class Codes: F28D 15/00 Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies F28D17/00, F28D19/00, F28D20/00 take precedence
• CPC Class Codes: F28D 2015/0225 Microheat pipes
• CPC Class Codes: F28D 2021/0029 Heat sinks
• CPC Class Codes: F28F 2013/006 Heat conductive materials
• CPC Class Codes: F28F 21/02 of carbon, e.g. graphite
• CPC Class Codes: F28F 2260/02 having microchannels
• CPC Class Codes: F28F 3/048 in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
• CPC Class Codes: F28F 3/12 Elements constructed in the shape of a hollow panel, e.g. with channels F28D1/02, F28D1/03 take precedence
• CPC Class Codes: H01G 11/18 against thermal overloads, e.g. heating, cooling or ventilating
• CPC Class Codes: H01G 11/78 Cases; Housings; Encapsulations; Mountings
• 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: H01G 9/08 Housing; Encapsulation
• CPC Class Codes: H01M 10/425 Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/615 Heating or keeping warm
• CPC Class Codes: H01M 10/623 Portable devices, e.g. mobile telephones, cameras or pacemakers
• CPC Class Codes: H01M 10/625 Vehicles
• CPC Class Codes: H01M 10/63 Control systems charging or discharging in response to temperature H01M10/44 , H01M10/443; measurement of temperature H01M10/48 , H01M10/486
• CPC Class Codes: H01M 10/633 characterised by algorithms, flow charts, software details or the like
• CPC Class Codes: H01M 10/647 : Prismatic or flat cells, e.g. pouch cells
• CPC Class Codes: H01M 10/654 : located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
• CPC Class Codes: H01M 10/6551 : Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
• CPC Class Codes: H01M 10/656 : characterised by the type of heat-exchange fluid
• CPC Class Codes: H01M 10/6562 : with free flow by convection only
• CPC Class Codes: H01M 10/6567 : Liquids
• CPC Class Codes: H01M 16/003 : of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers
• CPC Class Codes: H01M 16/006 : of fuel cells with rechargeable batteries
• CPC Class Codes: H01M 4/02 : Electrodes composed of, or comprising, active material
• CPC Class Codes: H01M 4/86 : Inert electrodes with catalytic activity, e.g. for fuel cells
• CPC Class Codes: H01M 8/0258 : characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
• CPC Class Codes: H01M 8/0267 : having heating or cooling means, e.g. heaters or coolant flow channels
• CPC Class Codes: H01M 8/04007 : related to heat exchange
• CPC Class Codes: H01M 8/04029 : Heat exchange using liquids
• CPC Class Codes: H01M 8/04074 : Heat exchange unit structures specially adapted for fuel cell
• CPC Class Codes: H01M 8/0432 : Temperature; Ambient temperature
• CPC Class Codes: H01M 8/04365 : of other components of a fuel cell or fuel cell stacks
• CPC Class Codes: H01M 8/04559 : of fuel cell stacks
• CPC Class Codes: H01M 8/04589 : of fuel cell stacks
• CPC Class Codes: H01M 8/04701 : Temperature
• CPC Class Codes: H01M 8/04731 : of other components of a fuel cell or fuel cell stacks
• CPC Class Codes: H01M 8/2475 : Enclosures, casings or containers of fuel cell stacks
• CPC Class Codes: H02J 7/00309 : Overheat or overtemperature protection
• CPC Class Codes: H05K 7/20254 : Cold plates transferring heat from heat source to coolant
• CPC Class Codes: Y02E 60/10 : Energy storage using batteries
• CPC Class Codes: Y02E 60/13 : Energy storage using capacitors
• CPC Class Codes: Y02E 60/50 : Fuel cells
• CPC Class Codes: Y02P 70/50 : Manufacturing or production processes characterised by the final manufactured product
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries

Abstract

A method is generally described which includes operating an electrical energy storage device or an electrochemical energy generation device includes placing an electrical load to draw current from the electrical energy storage device or the electrochemical energy generation device. The electrical energy storage device or the electrochemical energy generation device includes a housing having an external surface and an internal surface. The method also includes generating electricity by at least one component within the housing. At least one component is configured to generate electrical energy in combination with other components, chemicals, or materials residing within the housing. Further, the method includes thermal control the electrical energy storage device by transferring heat to a plurality of microchannels coupled to at least one of the internal surface of the housing or at least one components. Further still, the method includes rejecting the collected heat through a thermal sink coupled to the microchannels. The thermal sink is configured to transfer heat energy from the microchannels and to receive a fluid flowing through the microchannels.

Claims

1. A method of operating an electrical energy storage device or an electrochemical energy generation device, comprising:

placing an electrical load to draw current from the electrical energy storage device or the electrochemical energy generation device, the electrical energy storage device or the electrochemical energy generation device including a housing having an external surface and an internal surface;

generating electricity by at least one component within the housing, at least one component being configured to generate electrical energy in combination with other components, chemicals, or materials residing within the housing;

altering the temperature of the electrical energy storage device by transferring heat to a plurality of microchannels coupled to at least one of the internal surface of the housing or at least one components; and

rejecting the collected heat through a thermal sink coupled to the microchannels, the thermal sink being configured to transfer heat energy from a fluid and to receive the fluid flowing through the microchannels.

2. The method of claim 1, wherein the microchannels are formed in a portion of a wall of the housing.

3. The method of claim 1, wherein the microchannels are formed in a portion of at least one component.

4. The method of claim 1, wherein the microchannels are formed in a portion of at least one component and at least one component includes a cathode.

5. The method of claim 1, wherein the microchannels are formed in a portion of at least one component and at least one component includes an anode.

6. The method of claim 1, wherein the microchannels are formed in the material including a portion of at least one component and at least one component includes a catalyst material.

7. The method of claim 1, wherein the microchannels are formed in a portion of at least one component and at least one component includes a solid electrolyte material.

8. The method of claim 1, wherein the microchannels are formed in a portion of at least one component and at least one component includes an electrical contact.

9. The method of claim 1, wherein the microchannels are formed in a portion of at least one component and at least one component includes a current carrying conductor.

10. The method of claim 1, wherein the microchannels are formed in a portion of at least one component and at least one component includes a material and the material including a dielectric.

11. The method of claim 1, wherein the microchannels are formed in a portion of at least one component and at least one component includes a separator.

12. The method of claim 1, wherein the microchannels are formed at least partially integrally on the internal surface of the housing.

13. The method of claim 1, wherein the microchannels are formed at least partially integrally on a surface of at least one component.

14. The method of claim 1, wherein the microchannels are configured to induce laminar flow of the fluid through at least a portion of the microchannels.

15. The method of claim 1, wherein at least one component includes a thermal control component, and the thermal control component is disposed within the housing.

16. The method of claim 1, wherein the fluid includes air.

17. The method of claim 1, wherein the fluid includes a gas.

18. The method of claim 1, wherein the fluid includes water.

19. The method of claim 1, wherein the fluid includes antifreeze.

20. The method of claim 1, wherein the fluid includes molten salt.

21. The method of claim 1, wherein the fluid includes molten metal.

22. The method of claim 1, wherein the fluid includes micro-particles.

23. The method of claim 1, wherein the fluid includes a phase change material.

24. The method of claim 1, wherein the fluid includes liquid droplets.

25. The method of claim 1, wherein the fluid includes solid particles.

26. The method of claim 1, wherein the fluid is at least partially circulated by a pump.

27. The method of claim 1, wherein the fluid is at least partially circulated by a mechanical pump.

28. The method of claim 1, wherein the fluid is at least partially circulated by electromagnetic forces.

29. The method of claim 1, wherein the fluid is at least partially circulated by an electromagnetic (MHD) pump.

30. The method of claim 1, wherein the fluid is at least partially circulated by an electro osmotic pump.

31. The method of claim 1, wherein the fluid is at least partially circulated by convection.

32. The method of claim 1, wherein the fluid is at least partially circulated by electroosmosis.

33. The method of claim 1, wherein the fluid is at least partially circulated by capillary forces.

38. The method of claim 1, wherein the electrical energy storage device includes one or more vanadium redox cells.

39. The method of claim 1, wherein the electrical energy storage device includes one or more capacitive storage device.

40. The method of claim 1, wherein the electrical energy storage device includes one or more inductive storage devices.

41. The method of claim 1, wherein the electrical energy storage device includes one or more electrolytic capacitors.

42. The method of claim 1, wherein the electrical energy storage device or the electrochemical energy generation device includes a sodium sulfur battery.

43. The method of claim 1, wherein at least one component includes an electrode, and the electrode includes microchannels alternating with current flow pathways.

44. The method of claim 1, wherein the microchannels are formed by etching.

34-37. -37. (canceled)

45. A method of providing power from an electrical energy storage device or an electrochemical energy generation device, comprising:

providing the electrical energy storage device or the electrochemical energy generation device including a housing and including internal components within the housing;

providing a microchannel fluid thermal control system integrated into at least one of the interior of the housing or the internal components; and

configuring the electrical energy storage device or the electrochemical energy generation device for a platform for at least partially discharging the electrical energy storage device or the electrochemical energy generation device and using electrical energy from the electrical energy storage device or the electrochemical energy generation device.

46-85. -85. (canceled)

86. A method of providing power from an electrical energy storage device or an electrochemical energy generation device, comprising:

receiving the electrical energy storage device or the electrochemical energy generation device including a housing and including internal components within the housing;

receiving a microchannel fluid thermal control system integrated into at least one of the interior of the housing or the internal components;

discharging power at least partially from the electrical energy storage device or the electrochemical energy generation device, the electrical energy storage device or the electrochemical energy generation device configured for a platform for discharging the power source and using the electrical energy from the electrical energy storage device or the electrochemical energy generation device; and

discharging heat from the fluid flowing through the microchannel fluid thermal control system.

87-126. -126. (canceled)

127. A method of charging an electrical energy storage device, comprising:

configuring the electrical energy storage device to receive electrical current to charge the electrical energy storage device, the electrical energy storage device including a housing having an external surface and an internal surface;

configuring at least one component within the housing, at least one component being configured to generate electrical energy, during a discharge phase, in combination with other components, chemicals, or materials residing within the housing and at least one component configured to receive electrical charge during a charge phase;

providing a plurality of microchannels coupled to at least one of the internal surface of the housing or the at least one internal components to receive heat generated during the charge phase and providing a fluid within the microchannels; and

providing a thermal sink, to collect the heat from the fluid, coupled to the microchannels, the thermal sink being configured to transfer heat energy to or from the fluid flowing through the microchannels and the thermal sink.

128-167. -167. (canceled)

168. A method of charging an electrical energy storage device, comprising:

placing the electrical energy storage device to draw current from a charging source, the electrical energy storage device including a housing having an external surface and an internal surface;

receiving electricity by at least one component within the housing, at least one component being configured to receive electrical energy in combination with other components, chemicals, or materials residing within the housing;

altering the temperature of the electrical energy storage device by transferring heat to a plurality of microchannels coupled to at least one of the internal surface of the housing or the at least one internal components; and

transferring collected heat through a thermal sink coupled to the microchannels, the thermal sink being configured to transfer heat energy to or from the microchannel and receive a fluid flowing through the microchannels and the thermal sink.

169-249. -249. (canceled)