High voltage window electrolyte for supercapacitors

Ruther, Rose E.; Delnick, Frank M.; Nanda, Jagjit

Title: High voltage window electrolyte for supercapacitors

Abstract

A supercapacitor according to the present invention includes a negative carbon-comprising electrode which does not intercalate sodium, and a positive carbon-comprising electrode. An electrolyte composition comprises sodium hexafluorophosphate and a non-aqueous solvent comprising at least one selected from the group consisting of ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, and tetraethylene glycol dimethyl ether. The supercapacitor has an electrochemical voltage window of from +0.0 V to 3.5 V (full cell voltage). The electrolyte has an electrochemical voltage window of from +0.05 V to 3.9 V vs. Na/Na+. A method of making and a method of operating a supercapacitor is also disclosed.

Inventors:: Ruther, Rose E.; Delnick, Frank M.; Nanda, Jagjit

Issue Date:: 2020-05-26

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1650953

Patent Number(s):: 10665396

Application Number:: 16/746,503

Assignee:: UT-Battelle, LLC (Oak Ridge, TN)

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS
H01G11/04 - Hybrid capacitors
H01G11/06 - with one of the electrodes allowing ions or anions to be reversibly doped thereinto, e.g. lithium-ion capacitors [LICs]
H01G11/24 - characterised by structural features, e.g. forms, shapes, surface areas, porosities or dimensions, of the materials making up or comprised in the electrodes
H01G11/32 - Carbon-based, e.g. activated carbon materials
H01G11/38 - Carbon pastes or blends
H01G11/60 - characterised by the solvent
H01G11/62 - characterised by the solute, e.g. salts, anions or cations therein
H01G11/84 - Processes for the manufacture of hybrid or EDL capacitors, or components thereof

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E60/13 - Ultracapacitors, supercapacitors, double-layer capacitors

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DOE Contract Number:: AC05-00OR22725

Resource Type:: Patent

Resource Relation:: Patent File Date: 01/17/2020

Country of Publication:: United States

Language:: English

Subject:: 25 ENERGY STORAGE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats


                    Ruther, Rose E., Delnick, Frank M., and Nanda, Jagjit. High voltage window electrolyte for supercapacitors.  United States: N. p., 2020. 
        Web.

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                    Ruther, Rose E., Delnick, Frank M., & Nanda, Jagjit. High voltage window electrolyte for supercapacitors.  United States.

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                    Ruther, Rose E., Delnick, Frank M., and Nanda, Jagjit. Tue .  
        "High voltage window electrolyte for supercapacitors".  United States.  https://www.osti.gov/servlets/purl/1650953.

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@article{osti_1650953,

  title        = {High voltage window electrolyte for supercapacitors},

  author       = {Ruther, Rose E. and Delnick, Frank M. and Nanda, Jagjit},

  abstractNote = {A supercapacitor according to the present invention includes a negative carbon-comprising electrode which does not intercalate sodium, and a positive carbon-comprising electrode. An electrolyte composition comprises sodium hexafluorophosphate and a non-aqueous solvent comprising at least one selected from the group consisting of ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, and tetraethylene glycol dimethyl ether. The supercapacitor has an electrochemical voltage window of from +0.0 V to 3.5 V (full cell voltage). The electrolyte has an electrochemical voltage window of from +0.05 V to 3.9 V vs. Na/Na+. A method of making and a method of operating a supercapacitor is also disclosed.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {5}

}

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Works referenced in this record:

Electric double layer capacitor and separator therefor
patent, June 2002

Suhara, Manabu; Hiratsuka, Kazuya; Kawasato, Takeshi
US Patent Document 6,411,496
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6411496

Secondary battery
patent, September 1991

Shishikura, Toshikazu; Takeuchi, Masataka; Murakoshi, Yoshihiko
US Patent Document 5,051,325
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5051325

Electric double layer capacitor
patent, April 2001

Aoki, Tomonori; Inoue, Makoto; Ikeda, Katsuji
US Patent Document 6,222,720
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6222720

Printable Composition for an Ionic Gel Separation Layer for Energy Storage Devices
patent-application, January 2014

Lockett, Vera Nicholaevna; Lowenthal, Mark David; Shotton, Neil O.
US Patent Application 13/571302; 20140017557
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140017557

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Title: High voltage window electrolyte for supercapacitors

Abstract

Citation Formats

Electric double layer capacitor and separator therefor patent, June 2002

Secondary battery patent, September 1991

Electric double layer capacitor patent, April 2001

Printable Composition for an Ionic Gel Separation Layer for Energy Storage Devices patent-application, January 2014

Electric double layer capacitor and separator therefor
patent, June 2002

Secondary battery
patent, September 1991

Electric double layer capacitor
patent, April 2001

Printable Composition for an Ionic Gel Separation Layer for Energy Storage Devices
patent-application, January 2014