CA2250628A1 - High capacitance energy storage device - Google Patents

High capacitance energy storage device Download PDF

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Publication number
CA2250628A1
CA2250628A1 CA002250628A CA2250628A CA2250628A1 CA 2250628 A1 CA2250628 A1 CA 2250628A1 CA 002250628 A CA002250628 A CA 002250628A CA 2250628 A CA2250628 A CA 2250628A CA 2250628 A1 CA2250628 A1 CA 2250628A1
Authority
CA
Canada
Prior art keywords
carbonised
electrolyte
separators
woven fabric
conductive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002250628A
Other languages
French (fr)
Inventor
Dmitry N. Borisenko
Nikolay N. Borisenko
Original Assignee
SELECT MOLECULAR TECHNOLOGIES CORPORATION
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SELECT MOLECULAR TECHNOLOGIES CORPORATION filed Critical SELECT MOLECULAR TECHNOLOGIES CORPORATION
Priority to CA002250628A priority Critical patent/CA2250628A1/en
Priority to IL14258699A priority patent/IL142586A0/en
Priority to US09/807,485 priority patent/US7042708B1/en
Priority to PCT/CA1999/000928 priority patent/WO2000022637A1/en
Priority to CA2347224A priority patent/CA2347224C/en
Priority to AU63213/99A priority patent/AU6321399A/en
Publication of CA2250628A1 publication Critical patent/CA2250628A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22—Electrodes
    • H01G11/26—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22—Electrodes
    • H01G11/30—Electrodes characterised by their material
    • H01G11/32—Carbon-based
    • H01G11/34—Carbon-based characterised by carbonisation or activation of carbon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22—Electrodes
    • H01G11/30—Electrodes characterised by their material
    • H01G11/32—Carbon-based
    • H01G11/44—Raw materials therefor, e.g. resins or coal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/52—Separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/54—Electrolytes
    • H01G11/58—Liquid electrolytes
    • H01G11/62—Liquid electrolytes characterised by the solute, e.g. salts, anions or cations therein
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)

Abstract

A high capacitance energy storage device where electrodes are formed of layers of a carbonised, activated woven fabric that has been impregnated with an electrolyte.
The electrolyte is absorbed by active centers at the surface of the carbonised, activated material. The prepared fabric is sandwiched between alternating graphite-based separators and non-conductive membranes to form a capacitor structure exhibiting very high capacitance, non-degradation over multiple charging/discharging cycles, and, in AC
installations, reliable and reproducible characteristics. In addition, the materials in the device are environmentally friendly.

Claims (14)

1. A high capacitance energy storage device, comprising:
a housing electrically isolated from, and lined with, conductive, chemically inert separators, said separators electrically connected to contacts mounted on said housing;
at least one capacitive cell having a first electrode separated from a second electrode by a non-conductive, chemically inert membrane, said electrodes formed of a carbonised and activated woven fabric impregnated with an electrolyte, said cell being in electrical and mechanical contact with said separators;
wherein said membrane permits free passage of molecules of said electrolyte therethrough.
2. A device according to claim l, wherein said separators consist of a graphite-based material.
3. A device according to claim 2, wherein said separators consist of graphite sheets.
4. A device according to claim 2, wherein said separators consist of conductive rubber.
5. A device according to claim 2, wherein said separators consist of conductive polymer film.
6. A device according to claim 2, wherein said separators consist of graphite foil.
7. A device according to claim 1, wherein said electrolyte is a sulphuric acid solution.
8. A device according to claim 1, wherein said carbonised, activated woven fabric is formed from hydrocellulose.
9. A device according to claim 1, wherein each said electrodes is formed of a plurality of layers of said carbonised, activated woven fabric.
10. A device according to claim 1, wherein a single separator separates neighbouring cells.
11. A capacitive cell for a high energy storage device, comprising:
a first electrode separated from a second electrode by a non-conductive, chemically inert membrane, said electrodes formed of a carbonised, activated woven fabric impregnated with an electrolyte, said chemically inert membrane permitting free passage of molecules of said electrolyte therethrough.
12. A device according to claim 11, wherein said electrolyte is a sulphuric acid solution.
13. A device according to claim 11, wherein said carbonised, activated woven fabric is formed from hydrocellulose.
14. A device according to claim 11, wherein each said electrodes is formed of a plurality of layers of said carbonised, activated woven fabric.
CA002250628A 1998-10-13 1998-10-13 High capacitance energy storage device Abandoned CA2250628A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA002250628A CA2250628A1 (en) 1998-10-13 1998-10-13 High capacitance energy storage device
IL14258699A IL142586A0 (en) 1998-10-13 1999-10-13 High capacitance energy storage
US09/807,485 US7042708B1 (en) 1998-10-13 1999-10-13 High capacitance energy storage device
PCT/CA1999/000928 WO2000022637A1 (en) 1998-10-13 1999-10-13 High capacitance energy storage device
CA2347224A CA2347224C (en) 1998-10-13 1999-10-13 High capacitance energy storage device
AU63213/99A AU6321399A (en) 1998-10-13 1999-10-25 High capacitance energy storage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002250628A CA2250628A1 (en) 1998-10-13 1998-10-13 High capacitance energy storage device

Publications (1)

Publication Number Publication Date
CA2250628A1 true CA2250628A1 (en) 2000-04-13

Family

ID=29425487

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002250628A Abandoned CA2250628A1 (en) 1998-10-13 1998-10-13 High capacitance energy storage device

Country Status (1)

Country Link
CA (1) CA2250628A1 (en)

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Legal Events

Date Code Title Description
FZDE Discontinued