Thermal interconnection for capacitor systems
Thermal protection is provided in systems utilizing high-current double-layer capacitors.
1. A system, comprising:
at least one double-layer capacitor; and
an interconnection comprising a low temperature melting point alloy, the interconnection coupled to the at least one double-layer capacitor for carrying capacitor current to or from the least one double-layer capacitor, the interconnection functionally coupled to the at least one double-layer capacitor to reduce a temperature of the at least one double-layer capacitor.
2. The system of claim 1 , wherein the temperature is above about 85 degrees Celsius.
3. The system of claim 1 , wherein the temperature is reduced independent of the current.
4. The system of claim 1 , wherein the interconnection comprises an increased surface area.
5. The system of claim 1 , wherein the low temperature melting point alloy is selected from a group consisting of Bismuth-Lead, Tin, Cadmium, and Indium.
6. The system of claim 1 , wherein the current comprises a current of at least 275 amps.
7. The system of claim 1 , wherein the at least one double-layer capacitor is coupled to an electrical device.
8. The system of claim 7 , wherein the electrical device is a vehicular electrical device.
9. The system of claim 8 , wherein the electrical device comprises an engine.
10. The system of claim 9 , wherein the system utilizes a voltage above 40 volts.
11. The system of claim 7 , wherein the system utilizes a voltage above 40 volts.
12. A system, comprising:
at least one double-layer capacitor; and
an interconnection coupled to the at least one double-layer capacitor for carrying capacitor current to or from the a least one double-layer capacitor, the interconnection functionally coupled to the at least one double-layer capacitor to reduce a temperature of the at least one double-layer capacitor, wherein the interconnection comprises a thermal fuse for interrupting the current to or from the at least one double-layer capacitor.
13. The system of claim 12 , wherein the thermal fuse comprises a bus bar.
14. The system of claim 12 , wherein the thermal fuse comprises a low temperature melting point alloy.
15. The system of claim 14 , wherein the low temperature melting point alloy is selected from a group consisting of Bismuth-Lead, Tin, Cadmium, and Indium.
16. A system, comprising:
at least one double-layer capacitor; and
an interconnection coupled to the at least one double-layer capacitor for carrying capacitor current to or from the a least one double-layer capacitor, the interconnection functionally coupled to the at least one double-layer capacitor to reduce a temperature of the at least one double-layer capacitor, wherein the interconnection comprises a thermal contactor for bypassing current around the at least one double-layer capacitor.
17. The system of claim 16 , wherein the thermal contactor comprises a low temperature melting point alloy.
18. The system of claim 17 , wherein the low temperature melting point alloy is selected from a group consisting of Bismuth-Lead, Tin, Cadmium, and Indium.
19. A system, comprising:
a first double-layer capacitor comprising a first terminal and a second terminal;
a second double-layer capacitor comprising a third terminal and a fourth terminal;
an interconnection coupled to the second terminal of the first double-layer capacitor and the third terminal of the second double-layer capacitor for carrying capacitor current to or from the first double-layer capacitor, the interconnection functionally coupled to the first double-layer capacitor to reduce a temperature of the first double-layer capacitor; and
a balancing circuit connected to the first terminal of the first double-layer capacitor and the fourth terminal of the second double-layer capacitor.
20. The system of claim 19 , wherein the at least one double-layer capacitor is coupled to an electrical device.
21. The system of claim 20 , wherein the electrical device is a vehicular electrical device.
22. The system of claim 21 , wherein the electrical device comprises an engine.
23. The system of claim 22 , wherein the system utilizes a voltage above 40 volts.
24. The system of claim 19 , wherein the interconnection comprises a low temperature melting point alloy.