Method for manufacturing a hydrogen fuel cell cartridge, hydrogen fuel cell cartridge, and hydrogen fuel cell system

Patent metadata

Field	Value
Publication number	US-9461323-B2
Application number	US-201414452029-A
Country	US
Kind code	B2
Filing date	Aug 5, 2014
Priority date	Aug 5, 2014
Publication date	Oct 4, 2016
Grant date	Oct 4, 2016

Abstract

A method of fabricating a hydrogen fuel cell cartridge is provided. Furthermore, a hydrogen fuel cell cartridge is provided. In addition, a hydrogen fuel cell system is provided, which includes a plurality of cartridge segments in a spiral configuration and a control unit.

First claim

The invention claimed is:

1. A method of fabricating a hydrogen fuel cell cartridge, the method comprising:
combining at least one insulation layer, at least one heater layer, at least one fuel source layer comprising a hydrogen fuel source compound, and at least one waste heat exchange layer;
rolling the combined layers to form a spiral;
inserting segments of an insulation material in the at least one fuel source layer to form cartridge segments; and
inserting the spiral into an insulated container,

wherein the at least one waste heat exchange layer contains a coolant fluid.

2. The method according to claim 1 , wherein the at least one insulation layer and the segments comprise an insulation material having a thermal conductivity of no greater than 0.04 W/m/K.

3. The method according to claim 1 , wherein the at least one insulation layer comprises an insulation material selected from the group consisting of aerogels, pyrogels, perlite, and mineral wool.

4. The method according to claim 1 , wherein the at least one heater layer comprises a resistive film heater selected from the group consisting of polyimide heaters, silicone rubber heaters, mica heaters, metal heaters, ceramic heaters, semiconductor heaters, and carbon heaters.

5. The method according to claim 1 , wherein the hydrogen fuel source compound is a compound selected from a group consisting of alane, ammonia borane, ethylene diaminoborane, lithium hydride, and lithium aluminum hydride.

6. The method according to claim 1 , wherein the combining is performed via calendering, mechanical compaction, spray deposition, powder deposition, dip coating, or film casting.

7. The method according to claim 1 , wherein the coolant fluid has a vaporization point of at least 180° C.

8. A hydrogen fuel cell cartridge, comprising a plurality of cartridge segments in a spiral configuration, each of the plurality of cartridge segments comprising:
at least one insulation layer;
at least one heater layer;
at least one fuel source layer comprising a hydrogen fuel source compound; and
at least one waste heat exchange layer,

wherein the at least one fuel source layer is adjacent to the heater layer and the waste heat exchange layer, and
wherein the at least one waste heat exchange layer contains a coolant fluid.

9. The hydrogen fuel cell cartridge according to claim 8 , wherein the at least one insulation layer comprises an insulation material having a thermal conductivity of no greater than 0.04 W/m/K.

10. The hydrogen fuel cell cartridge according to claim 1 , wherein the at least one heater layer comprises a resistive film heater selected from the group consisting of polyimide heaters, silicone rubber heaters, mica heaters, metal heaters, ceramic heaters, semiconductor heaters, and carbon heaters.

11. The hydrogen fuel cell cartridge according to claim 1 , wherein the hydrogen fuel source compound is a compound selected from a group consisting of alane, ammonia borane, ethylene diaminoborane, lithium hydride, and lithium aluminum hydride.

12. The hydrogen fuel cell cartridge according to claim 1 , further comprising a temperature sensor.

13. The hydrogen fuel cell cartridge according to claim 1 , wherein the coolant fluid has a vaporization point of at least 180° C.

14. A hydrogen fuel cell system comprising:
a plurality of cartridge segments in a spiral configuration, each of the plurality of cartridge segments comprising: at least one insulation layer, at least one heater layer, at least one waste heat exchange layer, and at least one fuel source layer; and
a control unit configured to:
select a cartridge segment of the hydrogen fuel cell cartridge with the hydrogen fuel source that has not been depleted,
determine a required hydrogen demand of the hydrogen fuel cell cartridge,
control a heater layer of the selected cartridge segment,
measure hydrogen production of the selected cartridge segment, and
determine whether the required hydrogen demand has been met.

15. The hydrogen fuel cell system according to claim 14 , wherein the at least one fuel source layer comprises a hydrogen fuel source compound selected from a group consisting of alane, ammonia borane, ethylene diaminoborane, lithium hydride, and lithium aluminum hydride.

16. The hydrogen fuel cell system according to claim 14 , wherein the control unit is further configured to control waste heat produced by the fuel cell by controlling wattage of the fuel cell, depending on a load required by the fuel cell.

17. The hydrogen fuel cell system according to claim 14 , wherein the control unit is further configured to control a flow rate of a coolant fluid in a waste heat exchange layer of the selected cartridge segment.

18. The hydrogen fuel cell system according to claim 14 , wherein the control unit is further configured to control a flow rate of a coolant fluid in a waste heat exchange layer of the selected cartridge segment, depending upon a power demand of the fuel cell.

19. The hydrogen fuel cell system according to claim 14 , wherein the control unit is further configured to control a flow rate of a waste heat exchange layer of an unused cartridge segment, based on a temperature of the unused cartridge segment determined by a temperature sensor.

20. The hydrogen fuel cell system according to claim 14 , wherein the control unit is further configured to control the heat applied to the selected cartridge segment by the heater layer, based on a temperature of an unused cartridge segment determined by a temperature sensor.

Assignees

• Us Army
• Us Army

Inventors

• Thampan Tony M
• Novoa Jonathan
• Atwater Terrill B

Classifications

• H01M8/0656

  by electrochemical means (H01M8/065 takes precedence) · CPC title

• H01M8/065

  by dissolution of metals or alloys; by dehydriding metallic substances · CPC title

• B01J7/02

  by wet methods · CPC title

• Y02E60/50

  Fuel cells · CPC title

• C01B3/065

  by reaction of inorganic compounds with hydrides · CPC title