Patents by Inventor Michael J. Armstrong

Michael J. Armstrong 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: 20250246628
    Abstract: Methods and devices are provided herein for connecting a plurality of cathode structures to a cathode busbar within an electrode assembly of a secondary battery. Each cathode structure includes a cathode active material layer and a current collector, wherein the cathode current collector has an end portion that extends beyond the cathode active material layer. The end portions of the cathode structures are attached to the cathode busbar via two adhesive polymer strips that enable strong mechanical and electrical connections between the cathode structures and the cathode busbar.
    Type: Application
    Filed: January 26, 2024
    Publication date: July 31, 2025
    Inventors: Yousra El Ajjouri, Niteen G. Jadhav, Mayuresh Keskar, Doron Gal, Dmytro Poplavskyy, Michael J. Armstrong, Daniel J. Noelle, Miles A.M. Kool
  • Patent number: 12362439
    Abstract: A method includes stacking unit cells in a stacking direction. Each unit cell includes an electrode structure, a separator structure, and a counter-electrode structure. The electrode structure includes an electrode current collector and an electrode active material layer, and the counter-electrode structure includes a counter-electrode current collector and a counter-electrode active material layer. The electrode and counter-electrode structures extend in a longitudinal direction perpendicular to the stacking direction, and an end portion of the electrode current collector extends past the electrode active material and the separator structure in the longitudinal direction.
    Type: Grant
    Filed: May 12, 2023
    Date of Patent: July 15, 2025
    Assignee: Enovix Corporation
    Inventors: Michael J. Armstrong, Daniel J. Noelle, Robert S. Busacca, Bruno A. Valdes, Robert K. Rosen, Murali Ramasubramanian, Ashok Lahiri, Robert M. Spotnitz
  • Publication number: 20250149642
    Abstract: Embodiments of a method for the preparation of an electrode assembly, include removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population in a stacking direction to form a stacked population of unit cells.
    Type: Application
    Filed: November 19, 2024
    Publication date: May 8, 2025
    Inventors: Robert S. BUSACCA, Ashok LAHIRI, Murali RAMASUBRAMANIAN, Bruno A. VALDES, Gardner Cameron DALES, Harrold J. RUST, III, John F. VARNI, Kim Han LEE, Nirav S. SHAH, Richard J. CONTRERAS, Jeremie J. DALTON, Jonathan C. DOAN, Michael J. ARMSTRONG, Anthony CALCATERRA, Benjamin J. CARDOZO, Joshua David WINANS, Neelam SINGH, Jeffrey Glenn BUCK, Thomas John SCHUERLEIN, Kim Lester FORTUNATI, Neal SARSWAT
  • Publication number: 20250105283
    Abstract: Embodiments of secondary batteries having electrode assemblies are provided. A secondary battery can comprise an electrode assembly having a stacked series of layers, the stacked series of layers having an offset between electrode and counter-electrode layers in a unit cell member of the stacked series. A set of constraints can be provided with a primary constraint system with first and second primary growth constraints separated from each other in a longitudinal direction, and connected by at least one primary connecting member, and a secondary constraint system comprises first and second secondary growth constraints separated in a second direction and connected by members of the stacked series of layers. The primary constraint system may at least partially restrain growth of the electrode assembly in the longitudinal direction, and the secondary constraint system may at least partially restrain growth in the second direction that is orthogonal to the longitudinal direction.
    Type: Application
    Filed: December 9, 2024
    Publication date: March 27, 2025
    Inventors: Robert S. Busacca, Ashok Lahiri, Murali Ramasubramanian, Bruno A. Valdes, Gardner Cameron Dales, Christopher J. Spindt, Geoffrey Matthew Ho, Harrold J. Rust, III, James D. Wilcox, John F. Varni, Kim Han Lee, Nirav S. Shah, Richard J. Contreras, Lynn Van Erden, Ken S. Matsubayashi, Jeremie J. Dalton, Jason Newton Howard, Robert Keith Rosen, Jonathan C. Doan, Michael J. Armstrong, Anthony Calcaterra, Benjamin L. Cardozo, Joshua David Winans, Neelam Singh, Jeffrey Glenn Buck, Thomas John Schuerlein, Kim Lester Fortunati, Neal Sarswat
  • Publication number: 20250046812
    Abstract: Secondary batteries and methods of manufacture thereof are provided. A secondary battery can comprise an offset between electrode and counter-electrode layers in a unit cell. Secondary batteries can be prepared by removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population.
    Type: Application
    Filed: August 5, 2024
    Publication date: February 6, 2025
    Inventors: Robert S. Busacca, Ashok Lahiri, Murali Ramasubramanian, Bruno A. Valdes, Gardner Cameron Dales, Christopher J. Spindt, Geoffrey Matthew Ho, Harrold J. Rust, III, James D. Wilcox, John F. Varni, Kim Han Lee, Nirav S. Shah, Richard J. Contreras, Lynn Van Erden, Ken S. Matsubayashi, Jeremie J. Dalton, Jason Newton Howard, Robert Keith Rosen, Jonathan C. Doan, Michael J. Armstrong, Anthony Calcaterra, Benjamin L. Cardozo, Joshua David Winans, Neelam Singh, Jeffrey Glenn Buck, Thomas John Schuerlein, Kim Lester Fortunati, Neal Sarswat
  • Patent number: 12206106
    Abstract: Embodiments of secondary batteries having electrode assemblies are provided. A secondary battery can comprise an electrode assembly having a stacked series of layers, the stacked series of layers having an offset between electrode and counter-electrode layers in a unit cell member of the stacked series. A set of constraints can be provided with a primary constraint system with first and second primary growth constraints separated from each other in a longitudinal direction, and connected by at least one primary connecting member, and a secondary constraint system comprises first and second secondary growth constraints separated in a second direction and connected by members of the stacked series of layers. The primary constraint system may at least partially restrain growth of the electrode assembly in the longitudinal direction, and the secondary constraint system may at least partially restrain growth in the second direction that is orthogonal to the longitudinal direction.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: January 21, 2025
    Assignee: Enovix Corporation
    Inventors: Robert S. Busacca, Ashok Lahiri, Murali Ramasubramanian, Bruno A. Valdes, Gardner Cameron Dales, Christopher J. Spindt, Geoffrey Matthew Ho, Harrold J. Rust, III, James D. Wilcox, John F. Varni, Kim Han Lee, Nirav S. Shah, Richard J. Contreras, Lynn Van Erden, Ken S. Matsubayashi, Jeremie J. Dalton, Jason Newton Howard, Robert Keith Rosen, Jonathan C. Doan, Michael J. Armstrong, Anthony Calcaterra, Benjamin L. Cardozo, Joshua David Winans, Neelam Singh, Jeffrey Glenn Buck, Thomas John Schuerlein, Kim Lester Fortunati, Neal Sarswat
  • Publication number: 20250007117
    Abstract: An electrode assembly includes unit cells stacked in a longitudinal direction, each unit cell including an electrode structure, a separator, and a counter-electrode structure. The electrode structure includes an electrode current collector and an electrode active material layer. The counter-electrode structure includes a counter-electrode current collector and a counter-electrode active material layer. An end portion of the counter-electrode current collector extends past the counter-electrode active material and the separator. The end portion of the counter-electrode current collector is bent to define a bent end portion of the respective counter-electrode current collector. The bent end portions of at least some of the counter-electrode current collectors overlap the bent end portion of an adjacent counter-electrode current collector.
    Type: Application
    Filed: June 12, 2024
    Publication date: January 2, 2025
    Inventors: Daniel J. Noelle, Michael J. Armstrong, Miles A.M. Kool, Robert S. Busacca, Benjamin L. Cardozo, Murali Ramasubramanian
  • Patent number: 12183892
    Abstract: Embodiments of a method for the preparation of an electrode assembly, include removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population in a stacking direction to form a stacked population of unit cells.
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: December 31, 2024
    Assignee: Enovix Corporation
    Inventors: Robert S. Busacca, Ashok Lahiri, Murali Ramasubramanian, Bruno A. Valdes, Gardner Cameron Dales, Harrold J. Rust, III, John F. Varni, Kim Han Lee, Nirav S. Shah, Richard J. Contreras, Jeremie J. Dalton, Jonathan C. Doan, Michael J. Armstrong, Anthony Calcaterra, Benjamin J. Cardozo, Joshua David Winans, Neelam Singh, Jeffrey Glenn Buck, Thomas John Schuerlein, Kim Lester Fortunati, Neal Sarswat
  • Patent number: 12087947
    Abstract: Secondary batteries and methods of manufacture thereof are provided. A secondary battery can comprise an offset between electrode and counter-electrode layers in a unit cell. Secondary batteries can be prepared by removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: September 10, 2024
    Assignee: Enovix Corporation
    Inventors: Robert S. Busacca, Ashok Lahiri, Murali Ramasubramanian, Bruno A. Valdes, Gardner Cameron Dales, Christopher J. Spindt, Geoffrey Matthew Ho, Harrold J. Rust, III, James D. Wilcox, John F. Varni, Kim Han Lee, Nirav S. Shah, Richard J. Contreras, Lynn Van Erden, Ken S. Matsubayashi, Jeremie J. Dalton, Jason Newton Howard, Robert Keith Rosen, Jonathan C. Doan, Michael J. Armstrong, Anthony Calcaterra, Benjamin L. Cardozo, Joshua David Winans, Neelam Singh, Jeffrey Glenn Buck, Thomas John Schuerlein, Kim Lester Fortunati, Neal Sarswat
  • Publication number: 20230344092
    Abstract: A method includes stacking unit cells in a stacking direction. Each unit cell includes an electrode structure, a separator structure, and a counter-electrode structure. The electrode structure includes an electrode current collector and an electrode active material layer, and the counter-electrode structure includes a counter-electrode current collector and a counter-electrode active material layer. The electrode and counter-electrode structures extend in a longitudinal direction perpendicular to the stacking direction, and an end portion of the electrode current collector extends past the electrode active material and the separator structure in the longitudinal direction.
    Type: Application
    Filed: May 12, 2023
    Publication date: October 26, 2023
    Inventors: Michael J. Armstrong, Daniel J. Noelle, Robert S. Busacca, Bruno A. Valdes, Robert K. Rosen, Murali Ramasubramanian, Ashok Lahiri, Robert M. Spotnitz
  • Patent number: 11682812
    Abstract: A method includes stacking unit cells in a stacking direction. Each unit cell includes an electrode structure, a separator structure, and a counter-electrode structure. The electrode structure includes an electrode current collector and an electrode active material layer, and the counter-electrode structure includes a counter-electrode current collector and a counter-electrode active material layer. The electrode and counter-electrode structures extend in a longitudinal direction perpendicular to the stacking direction, and an end portion of the electrode current collector extends past the electrode active material and the separator structure in the longitudinal direction.
    Type: Grant
    Filed: March 31, 2022
    Date of Patent: June 20, 2023
    Assignee: Enovix Corporation
    Inventors: Michael J. Armstrong, Daniel J. Noelle, Robert S. Busacca, Bruno A. Valdes, Robert K. Rosen, Murali Ramasubramanian, Ashok Lahiri, Robert M. Spotnitz
  • Patent number: 11542032
    Abstract: A hybrid interchangeable battery evaluation tool (HIBET) is provided. HIBET determines an amount of electrical energy and an amount of jet fuel necessary for a hybrid electric aircraft to complete a flight based on a range of the flight, a payload of the hybrid electric aircraft, an indication of a battery mass limitation of the hybrid electric aircraft, and an optimization of an energy split between the electrical energy and the jet fuel. HIBET causes an indication of the amount of electrical energy to be displayed in a graphical user interface and/or to be otherwise outputted.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: January 3, 2023
    Assignee: ROLLS-ROYCE NORTH AMERICAN TECHNOLOGIES INC.
    Inventors: Stephen Long, Dwayne Bevis, Sean Guitar, Michael J. Armstrong
  • Publication number: 20220328861
    Abstract: A method includes stacking unit cells in a stacking direction. Each unit cell includes an electrode structure, a separator structure, and a counter-electrode structure. The electrode structure includes an electrode current collector and an electrode active material layer, and the counter-electrode structure includes a counter-electrode current collector and a counter-electrode active material layer. The electrode and counter-electrode structures extend in a longitudinal direction perpendicular to the stacking direction, and an end portion of the electrode current collector extends past the electrode active material and the separator structure in the longitudinal direction.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 13, 2022
    Inventors: Michael J. Armstrong, Daniel J. Noelle, Robert S. Busacca, Bruno A. Valdes, Robert K. Rosen, Murali Ramasubramanian, Ashok Lahiri, Robert M. Spotnitz
  • Publication number: 20220176900
    Abstract: A gas turbine engine and methods of operation include a low pressure electric motor-generator arranged for selective operation in a generator mode to generate electrical power or a drive mode to assist rotation of a low pressure drive shaft of the engine.
    Type: Application
    Filed: September 23, 2021
    Publication date: June 9, 2022
    Inventors: Donald Klemen, Michael J. Armstrong
  • Publication number: 20220173485
    Abstract: Embodiments of secondary batteries having electrode assemblies are provided. A secondary battery can comprise an electrode assembly having a stacked series of layers, the stacked series of layers having an offset between electrode and counter-electrode layers in a unit cell member of the stacked series. A set of constraints can be provided with a primary constraint system with first and second primary growth constraints separated from each other in a longitudinal direction, and connected by at least one primary connecting member, and a secondary constraint system comprises first and second secondary growth constraints separated in a second direction and connected by members of the stacked series of layers. The primary constraint system may at least partially restrain growth of the electrode assembly in the longitudinal direction, and the secondary constraint system may at least partially restrain growth in the second direction that is orthogonal to the longitudinal direction.
    Type: Application
    Filed: February 17, 2022
    Publication date: June 2, 2022
    Inventors: Robert S. BUSACCA, Ashok LAHIRI, Murali RAMASUBRAMANIAN, Bruno A. VALDES, Gardner Cameron DALES, Christopher J. SPINDT, Geoffrey Matthew HO, Harrold J. RUST, III, James D. WILCOX, John F. VARNI, Kim Han LEE, Nirav S. SHAH, Richard J. CONTRERAS, Lynn VAN ERDEN, Ken S. MATSUBAYASHI, Jeremie J. DALTON, Jason Newton HOWARD, Robert Keith ROSEN, Jonathan C. DOAN, Michael J. ARMSTRONG, Anthony CALCATERRA, Benjamin L. CARDOZO, Joshua David WINANS, Neelam SINGH, Jeffrey Glenn BUCK, Thomas John SCHUERLEIN, Kim Lester FORTUNATI, Neal SARSWAT
  • Publication number: 20220123370
    Abstract: Embodiments of a method for the preparation of an electrode assembly, include removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population in a stacking direction to form a stacked population of unit cells.
    Type: Application
    Filed: December 27, 2021
    Publication date: April 21, 2022
    Inventors: Robert S. BUSACCA, Ashok LAHIRI, Murali RAMASUBRAMANIAN, Bruno A. VALDES, Gardner Cameron DALES, Harrold J. RUST, III, John F. VARNI, Kim Han LEE, Nirav S. SHAH, Richard J. CONTRERAS, Jeremie J. DALTON, Jonathan C. DOAN, Michael J. ARMSTRONG, Anthony CALCATERRA, Benjamin J. CARDOZO, Joshua David WINANS, Neelam SINGH, Jeffrey Glenn BUCK, Thomas John SCHUERLEIN, Kim Lester FORTUNATI, Neal SARSWAT
  • Publication number: 20220115753
    Abstract: Secondary batteries and methods of manufacture thereof are provided. A secondary battery can comprise an offset between electrode and counter-electrode layers in a unit cell. Secondary batteries can be prepared by removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population.
    Type: Application
    Filed: October 19, 2021
    Publication date: April 14, 2022
    Inventors: Robert S. BUSACCA, Ashok LAHIRI, Murali RAMASUBRAMANIAN, Bruno A. VALDES, Gardner Cameron DALES, Christopher J. SPINDT, Geoffrey Matthew HO, Harrold J. RUST, III, James D. WILCOX, John F. VARNI, Kim Han LEE, Nirav S. SHAH, Richard J. CONTRERAS, Lynn VAN ERDEN, Ken S. MATSUBAYASHI, Jeremie J. DALTON, Jason Newton HOWARD, Robert Keith ROSEN, Jonathan C. DOAN, Michael J. ARMSTRONG, Anthony CALCATERRA, Benjamin L. CARDOZO, Joshua David WINANS, Neelam SINGH, Jeffrey Glenn BUCK, Thomas John SCHUERLEIN, Kim Lester FORTUNATI, Neal SARSWAT
  • Patent number: 11264680
    Abstract: Embodiments of secondary batteries having electrode assemblies are provided. A secondary battery can comprise an electrode assembly having a stacked series of layers, the stacked series of layers having an offset between electrode and counter-electrode layers in a unit cell member of the stacked series. A set of constraints can be provided with a primary constraint system with first and second primary growth constraints separated from each other in a longitudinal direction, and connected by at least one primary connecting member, and a secondary constraint system comprises first and second secondary growth constraints separated in a second direction and connected by members of the stacked series of layers. The primary constraint system may at least partially restrain growth of the electrode assembly in the longitudinal direction, and the secondary constraint system may at least partially restrain growth in the second direction that is orthogonal to the longitudinal direction.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: March 1, 2022
    Assignee: ENOVIX CORPORATION
    Inventors: Robert S. Busacca, Ashok Lahiri, Murali Ramasubramanian, Bruno A. Valdes, Gardner Cameron Dales, Christopher J. Spindt, Geoffrey Matthew Ho, Harrold J. Rust, III, James D. Wilcox, John F. Varni, Kim Han Lee, Nirav S. Shah, Richard J. Contreras, Lynn Van Erden, Ken S. Matsubayashi, Jeremie J. Dalton, Jason Newton Howard, Robert Keith Rosen, Jonathan C. Doan, Michael J. Armstrong, Anthony Calcaterra, Benjamin L. Cardozo, Joshua David Winans, Neelam Singh, Jeffrey Glenn Buck, Thomas John Schuerlein, Kim Lester Fortunati, Neal Sarswat
  • Patent number: 11211639
    Abstract: Embodiments of a method for the preparation of an electrode assembly, include removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population in a stacking direction to form a stacked population of unit cells.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: December 28, 2021
    Assignee: ENOVIX CORPORATION
    Inventors: Robert S. Busacca, Ashok Lahiri, Murali Ramasubramanian, Bruno A. Valdes, Gardner Cameron Dales, Harrold J. Rust, III, John F. Varni, Kim Han Lee, Nirav S. Shah, Richard J. Contreras, Jeremie J. Dalton, Jonathan C. Doan, Michael J. Armstrong, Anthony Calcaterra, Benjamin J. Cardozo, Joshua David Winans, Neelam Singh, Jeffrey Glenn Buck, Thomas John Schuerlein, Kim Lester Fortunati, Neal Sarswat
  • Patent number: 11130456
    Abstract: A gas turbine engine and methods of operation include a low pressure electric motor-generator arranged for selective operation in a generator mode to generate electrical power or a drive mode to assist rotation of a low pressure drive shaft of the engine.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: September 28, 2021
    Assignee: Rolls-Royce North American Technologies Inc.
    Inventors: Donald Klemen, Michael J. Armstrong