Patents by Inventor Alexey Borisovich Stepanov

Alexey Borisovich Stepanov 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).

  • ELECTRODE AND CURRENT COLLECTOR FOR ELECTROCHEMICAL CAPACITOR HAVING DOUBLE ELECTRIC LAYER AND DOUBLE ELECTRIC LAYER ELECTROCHEMICAL CAPACITOR FORMED THEREWITH
    Publication number: 20090040689
    Abstract: An electrode and a DEL capacitor formed therewith. The electrode will typically be a polarizable electrode, and may be formed of an activated carbon material having a substantially zero ash percentage and a low percentage of transition metals. In constructing a DEL capacitor employing such an electrode, a non-polarizable electrode formed from a lead dioxide/lead sulfate compound is preferably also used. The DEL capacitor may utilize an acid-based electrolyte, such as an aqueous sulfuric acid electrolyte. Consequently, the present invention also includes a current collector that preferably comprises a base material formed from a lead or a lead compound and a protective coating material that is resistant to an acid-based electrolyte. Preferably, the protective coating material is formed from a polymer base and a conductive dope that may thereafter be applied to the current collector base material by a variety of methods.
    Type: Application
    Filed: October 28, 2008
    Publication date: February 12, 2009
    Applicant: Universal Supercapacitors LLC
    Inventors: Valery Pavlovich Nedoshivin, Alexey Borisovich Stepanov, Sergey Vladimirovich Tarasov, Igor Nikolaevich Varakin, Sergey Nikolaevich Razumov
  • Electrode and current collector for electrochemical capacitor having double electric layer and double electric layer electrochemical capacitor formed therewith
    Patent number: 7443650
    Abstract: An electrode and a DEL capacitor formed therewith. The electrode will typically be a polarizable electrode, and may be formed of an activated carbon material having a substantially zero ash percentage and a low percentage of transition metals. In constructing a DEL capacitor employing such an electrode, a non-polarizable electrode formed from a lead dioxide/lead sulfate compound is preferably also used. The DEL capacitor may utilize an acid-based electrolyte, such as an aqueous sulfuric acid electrolyte. Consequently, the present invention also includes a current collector that preferably comprises a base material formed from a lead or a lead compound and a protective coating material that is resistant to an acid-based electrolyte. Preferably, the protective coating material is formed from a polymer base and a conductive dope that may thereafter be applied to the current collector base material by a variety of methods.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: October 28, 2008
    Assignee: Universal Supercapacitors LLC
    Inventors: Valery Pavlovich Nedoshivin, Alexey Borisovich Stepanov, Sergey Vladimirovich Tarasov, Igor Nikolaevich Varakin, Sergey Nikolaevich Razumov