Patents by Inventor Alevtina Smirnova

Alevtina Smirnova has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11955626
    Abstract: The present disclosure relates to mixed ionically and electronically conducting solid-state phases for their application in electrochemical devices, such as lithium-metal or lithium ion batteries. The solid-state mixed phase comprises of active cathode and carbon-based structures functionalized by a heteropolyacid (HPA) or a metal salt of a heteropolyacid (Me-HPA) to form a solid-state architecture with incorporated ceramic or glass-ceramic electrolyte for enhanced ionic and electronic conductivity pathways. Combining the solid-state phase components in melted solid-state electrolyte results in perfect distribution, improved adhesion between particles, and improved characteristics of the electrochemical device, such as high charge rates, long-term performance, and broad voltage window.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: April 9, 2024
    Assignee: SOUTH DAKOTA BOARD OF REGENTS
    Inventors: Alevtina Smirnova, Abu Md Numan-Al-Mobin
  • Patent number: 11905609
    Abstract: The present invention relates to a one-step process for preparation of “in-situ” or “ex-situ” self-organized and electrically conducting polymer nanocomposites using thermally initiated polymerization of a halogenated 3,4-ethylenedioxythiophene monomer or its derivatives. This approach does not require additional polymerization initiators or catalysts, produce gaseous products that are naturally removed without affecting the polymer matrix, and do not leave by-product contaminants. It is demonstrated that self-polymerization of halogenated 3,4-ethylenedioxythiophene monomer is not affected by the presence of a solid-state phase in the form of nanoparticles and results in formation of 3,4-polyethylenedioxythiophene (PEDOT) nanocomposites.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: February 20, 2024
    Assignee: SOUTH DAKOTA BOARD OF REGENTS
    Inventors: Alevtina Smirnova, Michael McGraw, Praveen Kolla
  • Publication number: 20220158231
    Abstract: The present disclosure relates to a manufacturing process of the solid-state glass-ceramic electrolytes, known in the art as antiperovskites. Specifically, the disclosure is focused on manufacturing of the solid-state electrolyte from the corresponding precursors directly on the active electrode surface of an electrochemical device, specifically anode or cathode of the lithium-ion or lithium metal batteries.
    Type: Application
    Filed: February 3, 2022
    Publication date: May 19, 2022
    Applicant: South Dakota Board of Regents
    Inventors: Alevtina Smirnova, Matthew Dondelinger, Joel Swanson
  • Patent number: 11276880
    Abstract: The present disclosure relates to a manufacturing process of the solid-state glass-ceramic electrolytes, known in the art as antiperovskites. Specifically, the disclosure is focused on manufacturing of the solid-state electrolyte from the corresponding precursors directly on the active electrode surface of an electrochemical device, specifically anode or cathode of the lithium-ion or lithium metal batteries.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: March 15, 2022
    Assignee: South Dakota Board of Regents
    Inventors: Alevtina Smirnova, Matthew Dondelinger, Joel Swanson
  • Publication number: 20220059823
    Abstract: The present disclosure relates to mixed ionically and electronically conducting solid-state phases for their application in electrochemical devices, such as lithium-metal or lithium ion batteries. The solid-state mixed phase comprises of active cathode and carbon-based structures functionalized by a heteropolyacid (HPA) or a metal salt of a heteropolyacid (Me-HPA) to form a solid-state architecture with incorporated ceramic or glass-ceramic electrolyte for enhanced ionic and electronic conductivity pathways. Combining the solid-state phase components in melted solid-state electrolyte results in perfect distribution, improved adhesion between particles, and improved characteristics of the electrochemical device, such as high charge rates, long-term performance, and broad voltage window.
    Type: Application
    Filed: August 17, 2021
    Publication date: February 24, 2022
    Applicant: South Dakota Board of Regents
    Inventors: Alevtina Smirnova, Abu Md Numan-Al-Mobin
  • Publication number: 20210363649
    Abstract: The present invention relates to a one-step process for preparation of “in-situ” or “ex-situ” self-organized and electrically conducting polymer nanocomposites using thermally initiated polymerization of a halogenated 3,4-ethylenedioxythiophene monomer or its derivatives. This approach does not require additional polymerization initiators or catalysts, produce gaseous products that are naturally removed without affecting the polymer matrix, and do not leave by-product contaminants. It is demonstrated that self-polymerization of halogenated 3,4-ethylenedioxythiophene monomer is not affected by the presence of a solid-state phase in the form of nanoparticles and results in formation of 3,4-polyethylenedioxythiophene (PEDOT) nanocomposites.
    Type: Application
    Filed: August 5, 2021
    Publication date: November 25, 2021
    Applicant: South Dakota Board of Regents
    Inventors: Alevtina Smirnova, Michael McGraw, Praveen Kolla
  • Patent number: 11111586
    Abstract: The present invention relates to a one-step process for preparation of “in-situ” or “ex-situ” self-organized and electrically conducting polymer nanocomposites using thermally initiated polymerization of a halogenated 3,4-ethylenedioxythiophene monomer or its derivatives. This approach does not require additional polymerization initiators or catalysts, produce gaseous products that are naturally removed without affecting the polymer matrix, and do not leave by-product contaminants. It is demonstrated that self-polymerization of halogenated 3,4-ethylenedioxythiophene monomer is not affected by the presence of a solid-state phase in the form of nanoparticles and results in formation of 3,4-polyethylenedioxythiophene (PEDOT) nanocomposites.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: September 7, 2021
    Assignee: SOUTH DAKOTA BOARD OF REGENTS
    Inventors: Alevtina Smirnova, Michael McGraw, Praveen Kolla
  • Patent number: 10991976
    Abstract: Solid-state lithium-ion batteries with a solid-state antiperovskite electrolyte are disclosed. In one aspect, a solid-state Li3ClO electrolyte is deposited on a Cu-supported thin carbon working electrode using a delamination approach for half-cells with lithium metal as a reference electrode.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: April 27, 2021
    Assignee: SOUTH DAKOTA BOARD OF REGENTS
    Inventors: Alevtina Smirnova, Matthew Dondelinger, Joel Swanson
  • Publication number: 20200036038
    Abstract: The present disclosure relates to a manufacturing process of the solid-state glass-ceramic electrolytes, known in the art as antiperovskites. Specifically, the disclosure is focused on manufacturing of the solid-state electrolyte from the corresponding precursors directly on the active electrode surface of an electrochemical device, specifically anode or cathode of the lithium-ion or lithium metal batteries.
    Type: Application
    Filed: October 1, 2019
    Publication date: January 30, 2020
    Applicant: South Dakota Board of Regents
    Inventors: Alevtina Smirnova, Matthew Dondelinger, Joel Swanson
  • Publication number: 20190356018
    Abstract: Solid-state lithium-ion batteries with a solid-state antiperovskite electrolyte are disclosed. In one aspect, a solid-state Li3ClO electrolyte is deposited on a Cu-supported thin carbon working electrode using a delamination approach for half-cells with lithium metal as a reference electrode.
    Type: Application
    Filed: May 15, 2019
    Publication date: November 21, 2019
    Applicant: South Dakota Board of Regents
    Inventors: Alevtina Smirnova, Matthew Dondelinger, Joel Swanson
  • Patent number: 9809522
    Abstract: Disclosed herein are methods for selective synthesis of specific phenolic products by means biomass or biomass products liquefaction, manipulation of the said selectivity in favor of one specific phenolic compound or a mixture of specific phenolic compounds, and the synthesis of the phenolic compounds from a liquid or biomass organic fraction produced in presence of a homogeneous catalyst in supercritical state or a mixture of said homogeneous and one or several heterogeneous catalysts mixed with water in sub-critical, near-critical, or supercritical condition.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: November 7, 2017
    Assignee: SOUTH DAKOTA BOARD OF REGENTS
    Inventors: Alevtina Smirnova, Chris Lynde, Abu Md Numan-Al-Mobin, Rudresh Bommadihalli Rajappagowda
  • Publication number: 20170241025
    Abstract: The present invention relates to a one-step process for preparation of “in-situ” or “ex-situ” self-organized and electrically conducting polymer nanocomposites using thermally initiated polymerization of a halogenated 3,4-ethylenedioxythiophene monomer or its derivatives. This approach does not require additional polymerization initiators or catalysts, produce gaseous products that are naturally removed without affecting the polymer matrix, and do not leave by-product contaminants. It is demonstrated that self-polymerization of halogenated 3,4-ethylenedioxythiophene monomer is not affected by the presence of a solid-state phase in the form of nanoparticles and results in formation of 3,4-polyethylenedioxythiophene (PEDOT) nanocomposites.
    Type: Application
    Filed: February 22, 2017
    Publication date: August 24, 2017
    Applicant: South Dakota Board of Regents
    Inventors: Alevtina Smirnova, Michael McGraw, Praveen Kolla
  • Publication number: 20170073291
    Abstract: Disclosed herein are methods for selective synthesis of specific phenolic products by means biomass or biomass products liquefaction, manipulation of the said selectivity in favor of one specific phenolic compound or a mixture of specific phenolic compounds, and the synthesis of the phenolic compounds from a liquid or biomass organic fraction produced in presence of a homogeneous catalyst in supercritical state or a mixture of said homogeneous and one or several heterogeneous catalysts mixed with water in sub-critical, near-critical, or supercritical condition.
    Type: Application
    Filed: September 12, 2016
    Publication date: March 16, 2017
    Applicant: South Dakota Board of Regents
    Inventors: Alevtina Smirnova, Chris Lynde, Abu Md Numan-Al-Mobin, Rudresh Bommadihalli Rajappagowda
  • Publication number: 20050200040
    Abstract: A process of manufacturing a membrane electrode assembly comprises the steps of preparing an electrode-forming catalyst ink comprising porous aerogel supported catalyst and an electrolyte; depositing the prepared catalyst ink on a polymer film to form one or more catalyst layers; hot-pressing the one or more catalyst layers deposited on the polymer film at a temperature that is higher than a glass transition temperature of the electrolyte; decreasing the temperature of the hot-pressed catalyst layer and the polymer film; and removing the polymer film from the one or more catalyst layers.
    Type: Application
    Filed: March 15, 2004
    Publication date: September 15, 2005
    Inventors: Hiroaki Hara, Alevtina Smirnova
  • Publication number: 20050065259
    Abstract: A polymeric binder system and method of making, and a method for extruding thin-walled articles such as thin-walled tubes is provided. The extrusion method comprises providing a polymeric binder system comprising a substantially homogeneous solution of a polymeric binder and an organic solvent, adding a ceramic or metal powder to form a mixture, and evaporating the solvent from the mixture. The remaining mixture is then extruded from a die and heated to burn-off the binder and sinter the article.
    Type: Application
    Filed: September 27, 2004
    Publication date: March 24, 2005
    Inventors: Alevtina Smirnova, Gary Crosbie, Robert Pett
  • Patent number: 6827892
    Abstract: A polymeric binder system and method of making, and a method for extruding thin-walled articles such as thin-walled tubes is provided. The extrusion method comprises providing a polymeric binder system comprising a substantially homogeneous solution of a polymeric binder and an organic solvent, adding a ceramic or metal powder to form a mixture, and evaporating the solvent from the mixture. The remaining mixture is then extruded from a die and heated to burn-off the binder and sinter the article.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: December 7, 2004
    Assignee: Ford Global Technologies, LLC
    Inventors: Alevtina Smirnova, Gary Mark Crosbie, Robert Allan Pett
  • Publication number: 20030090027
    Abstract: A polymeric binder system and method of making, and a method for extruding thin-walled articles such as thin-walled tubes is provided. The extrusion method comprises providing a polymeric binder system comprising a substantially homogeneous solution of a polymeric binder and an organic solvent, adding a ceramic or metal powder to form a mixture, and evaporating the solvent from the mixture. The remaining mixture is then extruded from a die and heated to burn-off the binder and sinter the article.
    Type: Application
    Filed: November 9, 2001
    Publication date: May 15, 2003
    Applicant: Ford Global Technologies, Inc.
    Inventors: Alevtina Smirnova, Gary Mark Crosbie, Robert Allan Pett