Supercapacitors using nanotube fibers and methods of making the same
View Patent ↗An electrochemical double layer capacitor utilizing nano-fibers in the electrodes for increased performance. The use of nano-fibers significantly increase the surface area of the opposing electrodes for greater levels of specific energy compared to traditional double layered capacitors using activated carbon.
1. A double-layer capacitor using nano-fiber filaments comprises,
electrode frames;
a plurality of electrodes;
a separator film;
an electrolyte;
a conductive joining method;
the electrode frames, having two opposing ends, consists of a positive current collector and a negative current collector;
a positive electrode assembly;
a negative electrode assembly;
the plurality of electrodes being connected to the positive current collector and the negative current collector by the conductive joining method;
the plurality of electrodes consists of a plurality of filaments; and
the nano-fiber filaments comprising a plurality of nano-fibers.
2. The double-layer capacitor using nano-fiber filaments as claimed in claim 1 comprises,
the positive electrode assembly being defined by the positive current collector and the plurality of electrodes;
the negative electrode assembly being defined by the negative current collector and the plurality of electrodes; and
the separator film being positioned between and separating the positive electrode assembly and the negative electrode assembly.
3. The double-layer capacitor using nano-fiber filaments as claimed in claim 1 comprises,
the plurality of electrodes being connected to the positive current collector and the negative current collector between the two opposing ends by the conductive adhesive; and
the plurality of electrodes being arranged in parallel relationship to the separator film.
4. The double-layer capacitor using nano-fiber filaments as claimed in claim 3 comprises,
the plurality of electrodes being densely packed between the positive current collector and the separator film;
the plurality of electrodes being densely packed between the negative current collector and the separator film; and
the plurality of electrodes being three dimensionally shaped consistently with the electrode frames, the positive current collector, and the negative current collector.
5. The double-layer capacitor using nano-fiber filaments as claimed in claim 1 comprises,
the electrolyte being in contact with and interposed between the plurality of electrodes.
6. The double-layer capacitor using nano-fiber filaments as claimed in claim 5 comprises,
the electrolyte being a non-conductive material below an electrical breakdown voltage with large ion concentration;
the electrolyte being a non-conductive material in a physical state selected from the group consisting of liquids and gels; and
the electrolyte having ion concentrations in contact and being in contact with each electrode of the plurality of electrodes to transfer a voltage field.
7. The double-layer capacitor using nano-fiber filaments as claimed in claim 1 comprises,
the positive current collector being made from a conductive material selected from the group consisting of conductive metal and conductive polymer;
the negative current collector being made from a conductive material selected from the group consisting of conductive metal and conductive polymer; and
the plurality of filaments being a filament selected from the group consisting of yarns, threads, filaments, strings and the like.
8. A double-layer capacitor using nano-fiber filaments comprises,
electrode frames;
a plurality of electrodes;
a separator film;
an electrolyte;
a conductive joining method;
the electrode frames, having two opposing ends, consists of a positive current collector and a negative current collector;
a positive electrode assembly;
a negative electrode assembly;
the plurality of electrodes being connected to the positive current collector and the negative current collector by the conductive joining method;
the plurality of electrodes consists of a plurality of filaments;
the nano-fiber filaments comprising a plurality of nano-fibers;
the positive electrode assembly being defined by the positive current collector and the plurality of electrodes;
the negative electrode assembly being defined by the negative current collector and the plurality of electrodes; and
the separator film being positioned between and separating the positive electrode assembly and the negative electrode assembly.
9. The double-layer capacitor using nano-fiber filaments as claimed in claim 8 comprises,
the plurality of electrodes being connected to the positive current collector and the negative current collector between the two opposing ends by the conductive adhesive; and
the plurality of electrodes being arranged in parallel relationship to the separator film.
10. The double-layer capacitor using nano-fiber filaments as claimed in claim 9 comprises,
the plurality of electrodes being densely packed between the positive current collector and the separator film;
the plurality of electrodes being densely packed between the negative current collector and the separator film; and
the plurality of electrodes being three dimensionally shaped consistently with the electrode frames, the positive current collector, and the negative current collector.
11. The double-layer capacitor using nano-fiber filaments as claimed in claim 8 comprises,
the electrolyte being in contact with and interposed between the plurality of electrodes.
12. The double-layer capacitor using nano-fiber filaments as claimed in claim 11 comprises,
the electrolyte being a non-conductive material below an electrical breakdown voltage with large ion concentration;
the electrolyte being a non-conductive material in a physical state selected from the group consisting of liquids and gels; and
the electrolyte having ion concentrations in contact and being in contact with each electrode of the plurality of electrodes to transfer a voltage field.
13. The double-layer capacitor using nano-fiber filaments as claimed in claim 8 comprises,
the positive current collector being made from a conductive material selected from the group consisting of conductive metal and conductive polymer;
the negative current collector being made from a conductive material selected from the group consisting of conductive metal and conductive polymer; and
the plurality of filaments being a filament selected from the group consisting of yarns, threads, filaments, strings and the like.
14. A double-layer capacitor using nano-fiber filaments comprises,
electrode frames;
a plurality of electrodes;
a separator film;
an electrolyte;
a conductive joining method;
the electrode frames, having two opposing ends, consists of a positive current collector and a negative current collector;
a positive electrode assembly;
a negative electrode assembly;
the plurality of electrodes being connected to the positive current collector and the negative current collector by the conductive joining method;
the plurality of electrodes consists of a plurality of filaments;
the nano-fiber filaments comprising a plurality of nano-fibers;
the positive electrode assembly being defined by the positive current collector and the plurality of electrodes;
the negative electrode assembly being defined by the negative current collector and the plurality of electrodes;
the separator film being positioned between and separating the positive electrode assembly and the negative electrode assembly;
the plurality of electrodes being connected to the positive current collector and the negative current collector between the two opposing ends by the conductive adhesive; and
the plurality of electrodes being arranged in parallel relationship to the separator film
the plurality of electrodes being densely packed between the positive current collector and the separator film;
the plurality of electrodes being densely packed between the negative current collector and the separator film.
15. The double-layer capacitor using nano-fiber filaments as claimed in claim 14 comprises,
the plurality of electrodes being three dimensionally shaped consistently with the electrode frames, the positive current collector, and the negative current collector.
16. The double-layer capacitor using nano-fiber filaments as claimed in claim 15 comprises,
the electrolyte being a non-conductive material below an electrical breakdown voltage with large ion concentration;
the electrolyte being a non-conductive material in a physical state selected from the group consisting of liquids and gels; and
the electrolyte having ion concentrations in contact and being in contact with each electrode of the plurality of electrodes to transfer a voltage field.
17. The double-layer capacitor using nano-fiber filaments as claimed in claim 14 comprises,
the electrolyte being in contact with and interposed between the plurality of electrodes.
18. The double-layer capacitor using nano-fiber filaments as claimed in claim 14 comprises,
the positive current collector being made from a conductive material selected from the group consisting of conductive metal and conductive polymer;
the negative current collector being made from a conductive material selected from the group consisting of conductive metal and conductive polymer; and
the plurality of filaments being a filament selected from the group consisting of yarns, threads, filaments, strings and the like.