Patents by Inventor Strahinja Zecevic

Strahinja Zecevic 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).

  • Publication number: 20230366109
    Abstract: Electrochemical cells for the production of hydrogen from liquid fuels and methods of operating the cells to produce hydrogen and electricity are provided. The electrochemical cells are solid state cells that incorporate a thermochemical conversion catalyst and a hydrogen oxidation catalyst into the anode and utilize solid acid electrolytes. This cell design integrates thermally driven chemical conversion of a starting fuel with electrochemical removal of hydrogen from the conversion reaction zone.
    Type: Application
    Filed: October 5, 2021
    Publication date: November 16, 2023
    Inventors: Dae-Kwang Lim, Austin Blake Plymill, Sossina M. Haile, Calum C.R. I. Chisholm, Strahinja Zecevic
  • Publication number: 20200411933
    Abstract: Rechargeable metal-air battery, air electrodes for use in the metal-air battery, and methods to manufacture the same are provided. The battery includes a negative electrode capable of taking and releasing active metal ions, a porous positive electrode using oxygen as an electroactive material and an electrolyte configured to conduct ions between the negative and positive electrodes and comprising one or more phases, wherein at least one phase comprises a liquid that at least partially fills the pores of the positive electrode and wherein the liquid comprises an oxygen evolving catalyst (OEC). The OEC a) is soluble in the liquid of the phase that partially fills the positive electrode pores, b) is electrochemically activated at a potential above the equilibrium cell voltage and c) is capable of evolving oxygen gas by oxidizing a metal oxide discharge product produced during discharge of the rechargeable metal-air battery.
    Type: Application
    Filed: September 11, 2020
    Publication date: December 31, 2020
    Inventors: Gregory V. Chase, Strahinja ZECEVIC, Wesley T. WALKER, Jasim UDDIN, Kenji A. SASAKI, Vincent P. GIORDANI, Vyacheslav BRYANTSEV, Mario BLANCO, Dan D. ADDISON
  • Patent number: 8110314
    Abstract: A system and a method for suppressing the build up of metal carbonates in the electrolyte, using a porous cell separator is used to allow the use of different electrolyte compositions around the anode (anolyte) and the cathode (catholyte). This cell configuration enables the oxygen cathode to operate in a molten hydroxide electrolyte, and the carbon anode to operate in mixed carbonate-hydroxide melt, so that most of the advantages of using a molten hydroxide electrolyte will be retained.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: February 7, 2012
    Assignee: Scientific Applications and Research Associates, Inc.
    Inventors: Strahinja Zecevic, Edward Patton, Parviz Parhami
  • Publication number: 20120028137
    Abstract: Rechargeable metal-air battery, air electrodes for use in the metal-air battery, and methods to manufacture the same are provided. The battery includes a negative electrode capable of taking and releasing active metal ions, a porous positive electrode using oxygen as an electroactive material and an electrolyte configured to conduct ions between the negative and positive electrodes and comprising one or more phases, wherein at least one phase comprises a liquid that at least partially fills the pores of the positive electrode and wherein the liquid comprises an oxygen evolving catalyst (OEC). The OEC a) is soluble in the liquid of the phase that partially fills the positive electrode pores, b) is electrochemically activated at a potential above the equilibrium cell voltage and c) is capable of evolving oxygen gas by oxidizing a metal oxide discharge product produced during discharge of the rechargeable metal-air battery.
    Type: Application
    Filed: April 25, 2011
    Publication date: February 2, 2012
    Inventors: Gregory V. Chase, Strahinja Zecevic, T. Walker Wesley, Jasim Uddin, Kenji A. Sasaki, P. Giordani Vincent, Vyacheslav Bryantsev, Mario Blanco, Dan D. Addison
  • Patent number: 7458965
    Abstract: The present invention is directed to an apparatus and method for controllably adjusting a fluid delivery device. The device includes an electrochemical pump capable of transporting a fluid. A displaceable member is positioned between a pump product chamber and a reservoir, wherein the pump product chamber is capable of retaining water generated from the pump. The displaceable member is controllably displaced upon generation of water from the electrochemical pump and the reservoir contains the fluid that is delivered upon displacement of the displaceable member.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: December 2, 2008
    Inventors: Ashok V. Joshi, Sai Bhavaraju, Felix Theeuwes, Jeremy C. Wright, Strahinja Zecevic
  • Publication number: 20060052768
    Abstract: The present invention is directed to an apparatus and method for controllably adjusting a fluid delivery device. The device includes an electrochemical pump capable of transporting a fluid. A displaceable member is positioned between a pump product chamber and a reservoir, wherein the pump product chamber is capable of retaining water generated from the pump. The displaceable member is controllably displaced upon generation of water from the electrochemical pump and the reservoir contains the fluid that is delivered upon displacement of the displaceable member.
    Type: Application
    Filed: May 26, 2005
    Publication date: March 9, 2006
    Applicant: MICROLIN, L.C.
    Inventors: Ashok Joshi, Sai Bhavaraju, Felix Theeuwes, Jeremy Wright, Strahinja Zecevic
  • Publication number: 20050282063
    Abstract: A system and a method for suppressing the build up of metal carbonates in the electrolyte, using a porous cell separator is used to allow the use of different electrolyte compositions around the anode (anolyte) and the cathode (catholyte). This cell configuration enables the oxygen cathode to operate in a molten hydroxide electrolyte, and the carbon anode to operate in mixed carbonate-hydroxide melt, so that most of the advantages of using a molten hydroxide electrolyte will be retained.
    Type: Application
    Filed: June 20, 2005
    Publication date: December 22, 2005
    Inventors: Strahinja Zecevic, Edward Patton, Parviz Parhami
  • Publication number: 20050013772
    Abstract: A system and a method is provided for a hydrocarbon fuel reformer. The system and method include a technique for separating hydrocarbon fuels into smaller particles and/or droplets. Separating the hydrocarbon fuels into smaller particles and/or droplets allows for the hydrogen and carbons to be separated. The hydrocarbons are broken down into smaller particles and then dissociated into gaseous hydrogen and particulate carbon. Once dissociated, the mixture can be separated to produce hydrogen and carbon in elemental state for use as fuels.
    Type: Application
    Filed: July 19, 2004
    Publication date: January 20, 2005
    Inventors: Edward Patton, John Dering, James Thomas, Strahinja Zecevic, Parviz Parhami