Patents by Inventor Tavo Romann

Tavo Romann 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).

  • Method of forming a dielectric through electrodeposition on an electrode for a capacitor
    Patent number: 10087541
    Abstract: The present invention relates to a method for forming a capacitor having carbon or metal electrodes and an electrolyte which is also a source of electropolymerisable anions. Applying a sufficiently positive voltage, a thin dielectric layer forms at the positive electrode, enabling the use of cell voltages higher than 3.5 V. The construction and characteristics of capacitors with 5, 6.3, and 10 V of cell voltages, having reduced graphene oxide electrodes and an ionic liquid electrolyte, are shown.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: October 2, 2018
    Assignee: University of Tartu
    Inventors: Tavo Romann, Enn Lust, Ove Oll
  • Separators, electrodes, half-cells, and cells of electrical energy storage devices
    Patent number: 9951443
    Abstract: Electrodes, separators, half-cells, and full cells of electrical energy storage devices are made with electrospinning and isostatic compression. The electrical energy storage device may include electrochemical double layer capacitors (EDLCs, also known as “supercapacitors”), hybrid supercapacitors (“HSCs”), Li-ion capacitors and electrochemical storage devices, Na-ion capacitors and electrochemical storage devices, polymer electrolyte fuel cells, and still other capacitors and electrochemical storage cells.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: April 24, 2018
    Assignee: UNIVERSITY OF TARTU
    Inventors: Enn Lust, Kerli Liivand, Ingrid Vaas, Thomas Thomberg, Indrek Tallo, Heisi Kurig, Tavo Romann, Rait Kanarbik, Tauno Tooming, Ester Tee, Alar Jänes
  • Method of Forming a Dielectric Through Electrodeposition on an Electrode For a Capacitor
    Publication number: 20170241036
    Abstract: The present invention relates to a method for forming a capacitor having carbon or metal electrodes and an electrolyte which is also a source of electropolymerisable anions. Applying a sufficiently positive voltage, a thin dielectric layer forms at the positive electrode, enabling the use of cell voltages higher than 3.5 V. The construction and characteristics of capacitors with 5, 6.3, and 10 V of cell voltages, having reduced graphene oxide electrodes and an ionic liquid electrolyte, are shown.
    Type: Application
    Filed: September 29, 2015
    Publication date: August 24, 2017
    Inventors: Tavo ROMANN, Enn LUST, Ove OLL
  • SEPARATORS, ELECTRODES, HALF-CELLS, AND CELLS OF ELECTRICAL ENERGY STORAGE DEVICES
    Publication number: 20170191189
    Abstract: Electrodes, separators, half-cells, and full cells of electrical energy storage devices are made with electrospinning and isostatic compression. The electrical energy storage device may include electrochemical double layer capacitors (EDLCs, also known as “supercapacitors”), hybrid supercapacitors (“HSCs”), Li-ion capacitors and electrochemical storage devices, Na-ion capacitors and electrochemical storage devices, polymer electrolyte fuel cells, and still other capacitors and electrochemical storage cells.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 6, 2017
    Inventors: Enn Lust, Kerli Liivand, Ingrid Vaas, Thomas Thomberg, Indrek Tallo, Heisi Kurig, Tavo Romann, Rait Kanarbik, Tauno Tooming, Ester Tee, Alar Jänes