Patents by Inventor Alexei Petrov

Alexei Petrov 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: 20220045353
    Abstract: Chemically treating ionically conductive sulfide glass solid electrolyte separators or separator layers can improve performance. In particular, treatment involving chemically etching a surface or surface region of the sulfide glass separator to blunt, lessen or remove edge defects or surface flaws, and/or to enhance surface smoothness is cost effective, reliable and well suited for high production environments compared to physical methods of removing scratches or smoothing surfaces, such as mechanical grinding and polishing.
    Type: Application
    Filed: June 4, 2021
    Publication date: February 10, 2022
    Applicant: PolyPlus Battery Company
    Inventors: Steven J. Visco, Vitaliy Nimon, Alexei Petrov, Yevgeniy S. Nimon, Bruce D. Katz
  • Publication number: 20210320328
    Abstract: Preparation of anhydrous lithium sulfide (Li2S) purified suitably for applications in advanced batteries, and, in particular, for synthesis of solid electrolytes based on Li2S, including sulfide solid electrolytes of the type that may be described as crystalline (e.g., polycrystalline), amorphous (e.g., glass) and combinations thereof, such as sulfide glass-ceramic solid electrolyte materials.
    Type: Application
    Filed: March 16, 2021
    Publication date: October 14, 2021
    Applicant: PolyPlus Battery Company
    Inventors: Steven J. Visco, Alexei Petrov, Valentina Loginova, Vitaliy Nimon, Yevgeniy S. Nimon, Bruce D. Katz
  • Publication number: 20180309157
    Abstract: The present invention is directed to protected active metal negative electrodes for use in an electrochemical device such as a rechargeable battery cells, and to novel battery cells incorporating said protected electrodes. In accordance with the invention, the interior of the anode compartment includes, what is termed herein, a reservoir architecture for accommodating liquid anolyte in contact with the active metal electroactive material layer and is spatially engineered to improve service life of the instant electrode, and in particular embodiments to enhance cycle life of a battery cell in which the protected electrode is employed.
    Type: Application
    Filed: April 18, 2018
    Publication date: October 25, 2018
    Inventors: Steven J. Visco, Vitaliy Nimon, Yevgeniy S. Nimon, Bruce D. Katz, Lutgard C. De Jonghe, Alexei Petrov
  • Patent number: 9905860
    Abstract: A water activated lithium battery cell having a thermal agent component for warming up cell components upon deployment. Also a water-activated battery system that is adapted to operate in and/or on the surface of a waterbody (i.e., a body of water including those which are natural or man made). In various embodiments the battery system comprises an operably breachable hermetic enclosure and at least one lithium battery cell having an open-cathode architecture, the lithium cell disposed inside the hermetic enclosure and therein maintained in an open ionic circuit condition (i.e., an inactive state) throughout battery system storage. Moreover, optionally, a thermal agent may be disposed inside the hermetic enclosure for warming up one or more battery cell components, the agent typically water activated, which is to mean that it (the thermal agent) evolves heat by reacting with water.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: February 27, 2018
    Assignee: POLYPLUS BATTERY COMPANY
    Inventors: Steven J. Visco, Lutgard C. De Jonghe, Vitaliy Nimon, Alexei Petrov, Ian Wogan, Yevgeniy S. Nimon, Bruce D. Katz
  • Publication number: 20170365898
    Abstract: Aqueous Li/Air secondary battery cells are configurable to achieve high energy density and prolonged cycle life. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. The aqueous catholyte comprises an evaporative-loss resistant and/or polyprotic active compound or active agent that partakes in the discharge reaction and effectuates cathode capacity for discharge in the acidic region. This leads to improved performance including one or more of increased specific energy, improved stability on open circuit, and prolonged cycle life, as well as various methods, including a method of operating an aqueous Li/Air cell to simultaneously achieve improved energy density and prolonged cycle life.
    Type: Application
    Filed: April 27, 2017
    Publication date: December 21, 2017
    Inventors: Steven J. Visco, Yevgeniy S. Nimon, Lutgard C. De Jonghe, Alexei Petrov, Nikolay Goncharenko
  • Publication number: 20170365853
    Abstract: Lithium sulfur battery cells that use water as an electrolyte solvent provide significant cost reductions. Electrolytes for the battery cells may include water solvent for maintaining electroactive sulfur species in solution during cell discharge and a sufficient amount of a cycle life-enhancing compound that facilitates charging at the cathode. The combination of these two components enhances one or more of the following cell attributes: energy density, power density and cycle life. For instance, in applications where cost per Watt-Hour (Wh) is paramount, such as grid storage and traction applications, the use of an aqueous electrolyte in combination with inexpensive sulfur as the cathode active material can be a key enabler for the utility and automotive industries, for example, providing a cost effective and compact solution for load leveling, electric vehicles and renewable energy storage.
    Type: Application
    Filed: April 28, 2017
    Publication date: December 21, 2017
    Inventors: Steven J. Visco, Nikolay Goncharenko, Vitaliy Nimon, Alexei Petrov, Yevgeniy S. Nimon, Lutgard C. De Jonghe, Bruce D. Katz, Valentina Loginova
  • Patent number: 9660265
    Abstract: Lithium sulfur battery cells that use water as an electrolyte solvent provide significant cost reductions. Electrolytes for the battery cells may include water solvent for maintaining electroactive sulfur species in solution during cell discharge and a sufficient amount of a cycle life-enhancing compound that facilitates charging at the cathode. The combination of these two components enhances one or more of the following cell attributes: energy density, power density and cycle life. For instance, in applications where cost per Watt-Hour (Wh) is paramount, such as grid storage and traction applications, the use of an aqueous electrolyte in combination with inexpensive sulfur as the cathode active material can be a key enabler for the utility and automotive industries, for example, providing a cost effective and compact solution for load leveling, electric vehicles and renewable energy storage.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: May 23, 2017
    Assignee: POLYPLUS BATTERY COMPANY
    Inventors: Steven J. Visco, Nikolay Goncharenko, Vitaliy Nimon, Alexei Petrov, Yevgeniy S. Nimon, Lutgard C. De Jonghe, Bruce D. Katz, Valentina Loginova
  • Patent number: 9660311
    Abstract: Aqueous Li/Air secondary battery cells are configurable to achieve high energy density and prolonged cycle life. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. The aqueous catholyte comprises an evaporative-loss resistant and/or polyprotic active compound or active agent that partakes in the discharge reaction and effectuates cathode capacity for discharge in the acidic region. This leads to improved performance including one or more of increased specific energy, improved stability on open circuit, and prolonged cycle life, as well as various methods, including a method of operating an aqueous Li/Air cell to simultaneously achieve improved energy density and prolonged cycle life.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: May 23, 2017
    Assignee: POLYPLUS BATTERY COMPANY
    Inventors: Steven J. Visco, Yevgeniy S. Nimon, Lutgard C. De Jonghe, Alexei Petrov, Nikolay Goncharenko
  • Publication number: 20160028053
    Abstract: Protected anode architectures have ionically conductive protective membrane architectures that, in conjunction with compliant seal structures and anode backplanes, effectively enclose an active metal anode inside the interior of an anode compartment. This enclosure prevents the active metal from deleterious reaction with the environment external to the anode compartment, which may include aqueous, ambient moisture, and/or other materials corrosive to the active metal. The compliant seal structures are substantially impervious to anolytes, catholytes, dissolved species in electrolytes, and moisture and compliant to changes in anode volume such that physical continuity between the anode protective architecture and backplane are maintained. The protected anode architectures can be used in arrays of protected anode architectures and battery cells of various configurations incorporating the protected anode architectures or arrays.
    Type: Application
    Filed: July 28, 2015
    Publication date: January 28, 2016
    Inventors: Steven J. Visco, Yevgeniy S. Nimon, Lutgard C. De Jonghe, Bruce D. Katz, Alexei Petrov
  • Patent number: 9130198
    Abstract: Protected anode architectures have ionically conductive protective membrane architectures that, in conjunction with compliant seal structures and anode backplanes, effectively enclose an active metal anode inside the interior of an anode compartment. This enclosure prevents the active metal from deleterious reaction with the environment external to the anode compartment, which may include aqueous, ambient moisture, and/or other materials corrosive to the active metal. The compliant seal structures are substantially impervious to anolytes, catholyes, dissolved species in electrolytes, and moisture and compliant to changes in anode volume such that physical continuity between the anode protective architecture and backplane are maintained. The protected anode architectures can be used in arrays of protected anode architectures and battery cells of various configurations incorporating the protected anode architectures or arrays.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: September 8, 2015
    Assignee: PolyPlus Battery Company
    Inventors: Steven J. Visco, Yevgeniy S. Nimon, Lutgard De Jonghe, Bruce D. Katz, Alexei Petrov
  • Publication number: 20150214555
    Abstract: Lithium sulfur battery cells that use water as an electrolyte solvent provide significant cost reductions. Electrolytes for the battery cells may include water solvent for maintaining electroactive sulfur species in solution during cell discharge and a sufficient amount of a cycle life-enhancing compound that facilitates charging at the cathode. The combination of these two components enhances one or more of the following cell attributes: energy density, power density and cycle life. For instance, in applications where cost per Watt-Hour (Wh) is paramount, such as grid storage and traction applications, the use of an aqueous electrolyte in combination with inexpensive sulfur as the cathode active material can be a key enabler for the utility and automotive industries, for example, providing a cost effective and compact solution for load leveling, electric vehicles and renewable energy storage.
    Type: Application
    Filed: March 13, 2015
    Publication date: July 30, 2015
    Inventors: Steven J. Visco, Nikolay Goncharenko, Vitaliy Nimon, Alexei Petrov, Yevgeniy S. Nimon, Lutgard C. De Jonghe, Bruce D. Katz, Valentina Loginova
  • Publication number: 20150162641
    Abstract: The present invention is directed to protected active metal negative electrodes for use in an electrochemical device such as a rechargeable battery cells, and to novel battery cells incorporating said protected electrodes. In accordance with the invention, the interior of the anode compartment includes, what is termed herein, a reservoir architecture for accommodating liquid anolyte in contact with the active metal electroactive material layer and is spatially engineered to improve service life of the instant electrode, and in particular embodiments to enhance cycle life of a battery cell in which the protected electrode is employed.
    Type: Application
    Filed: December 9, 2014
    Publication date: June 11, 2015
    Inventors: Steven J. Visco, Vitaliy Nimon, Yevgeniy S. Nimon, Bruce D. Katz, Lutgard C. De Jonghe, Alexei Petrov
  • Publication number: 20150004457
    Abstract: A water activated lithium battery cell having a thermal agent component for warming up cell components upon deployment. Also a water-activated battery system that is adapted to operate in and/or on the surface of a waterbody (i.e., a body of water including those which are natural or man made). In various embodiments the battery system comprises an operably breachable hermetic enclosure and at least one lithium battery cell having an open-cathode architecture, the lithium cell disposed inside the hermetic enclosure and therein maintained in an open ionic circuit condition (i.e., an inactive state) throughout battery system storage. Moreover, optionally, a thermal agent may be disposed inside the hermetic enclosure for warming up one or more battery cell components, the agent typically water activated, which is to mean that it (the thermal agent) evolves heat by reacting with water.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 1, 2015
    Inventors: Steven J. Visco, Lutgard C. De Jonghe, Vitaliy Nimon, Alexei Petrov, Ian Wogan, Yevgeniy S. Nimon, Bruce D. Katz
  • Publication number: 20140162108
    Abstract: Protected anode architectures provide a hermetic enclosure for an active metal (e.g., alkali metal, such as lithium) anode inside an anode compartment. The compartment is substantially impervious to ambient moisture and battery components such as catholyte (electrolyte about the cathode, and in some aspects catholyte may also comprise dissolved or suspended redox active species and redox active liquids), and prevents volatile components of the protected anode, such as anolyte (electrolyte about the anode), from escaping, while allowing for active metal ion transport between the anode and cathode into and out of the anode compartment.
    Type: Application
    Filed: February 14, 2014
    Publication date: June 12, 2014
    Applicant: PolyPlus Battery Company
    Inventors: Steven J. Visco, Yevgeniy S. Nimon, Lutgard De Jonghe, Bruce D. Katz, Alexei Petrov
  • Patent number: 8691444
    Abstract: Protected anode architectures for active metal anodes have a polymer adhesive seal that provides a hermetic enclosure for the active metal of the protected anode inside an anode compartment. The compartment is substantially impervious to ambient moisture and battery components such as catholyte (electrolyte about the cathode), and prevents volatile components of the protected anode, such as anolyte (electrolyte about the anode), from escaping. The architecture is formed by joining the protected anode to an anode container. The polymer adhesive seals provide a hermetic seal at the joint between a surface of the protected anode and the container.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: April 8, 2014
    Assignee: PolyPlus Battery Company
    Inventors: Steven J. Visco, Yevgeniy S. Nimon, Lutgard C. De Jonghe, Bruce D. Katz, Alexei Petrov
  • Patent number: 8673477
    Abstract: Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: March 18, 2014
    Assignee: PolyPlus Battery Company
    Inventors: Steven J. Visco, Lutgard C. De Jonghe, Yevgeniy S. Nimon, Alexei Petrov, Kirill Pridatko, Bruce Katz
  • Patent number: 8658304
    Abstract: Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: February 25, 2014
    Assignee: PolyPlus Battery Company
    Inventors: Steven J. Visco, Lutgard C. De Jonghe, Yevgeniy S. Nimon, Alexei Petrov, Kirill Pridatko
  • Publication number: 20130302704
    Abstract: Protected anode architectures for active metal anodes have a polymer adhesive seal that provides a hermetic enclosure for the active metal of the protected anode inside an anode compartment. The compartment is substantially impervious to ambient moisture and battery components such as catholyte (electrolyte about the cathode), and prevents volatile components of the protected anode, such as anolyte (electrolyte about the anode), from escaping. The architecture is formed by joining the protected anode to an anode container. The polymer adhesive seals provide a hermetic seal at the joint between a surface of the protected anode and the container.
    Type: Application
    Filed: April 16, 2013
    Publication date: November 14, 2013
    Applicant: PolyPlus Battery Company
    Inventors: Steven J. Visco, Yevgeniy S. Nimon, Lutgard C. De Jonghe, Bruce D. Katz, Alexei Petrov
  • Publication number: 20130224593
    Abstract: Protected anode architectures have ionically conductive protective membrane architectures that, in conjunction with compliant seal structures and anode backplanes, effectively enclose an active metal anode inside the interior of an anode compartment. This enclosure prevents the active metal from deleterious reaction with the environment external to the anode compartment, which may include aqueous, ambient moisture, and/or other materials corrosive to the active metal. The compliant seal structures are substantially impervious to anolytes, catholyes, dissolved species in electrolytes, and moisture and compliant to changes in anode volume such that physical continuity between the anode protective architecture and backplane are maintained. The protected anode architectures can be used in arrays of protected anode architectures and battery cells of various configurations incorporating the protected anode architectures or arrays.
    Type: Application
    Filed: February 12, 2013
    Publication date: August 29, 2013
    Applicant: PolyPlus Battery Company
    Inventors: Steven J. Visco, Yevgeniy S. Nimon, Lutgard De Jonghe, Bruce D. Katz, Alexei Petrov
  • Patent number: 8455131
    Abstract: Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: June 4, 2013
    Assignee: PolyPlus Battery Company
    Inventors: Steven J. Visco, Lutgard C. De Jonghe, Yevgeniy S. Nimon, Alexei Petrov, Kirill Pridatko