Patents by Inventor Kathleen Qiu

Kathleen Qiu 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).

  • Lithiation of electrodes for energy storage devices and method for making same
    Patent number: 11955621
    Abstract: A method for lithiation of an electrode includes providing an electrode to be lithiated, providing a piece of lithium metal with predetermined weight attached to a conductive material, attaching the conductive material to a current collector of the electrode to be lithiated or to a metal tab connected to or from the electrode to be lithiated, placing the electrode to be lithiated, the piece of lithium, and the conductive material in a container, and filling the container with an electrolyte containing a lithium salt.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: April 9, 2024
    Assignee: LICAP TECHNOLOGIES, INC.
    Inventors: Kathleen Qiu, Linda Zhong, Martin Zea, Bae Kyun Kim, Alvaro Perez Rodriguez
  • DRY ELECTRODE MANUFACTURE BY TEMPERATURE ACTIVATION METHOD
    Publication number: 20230197923
    Abstract: A method of manufacturing a free-standing electrode film includes preparing a mixture including an electrode active material, a conductive material, and a binder, heating the mixture to 70° C. or higher, subjecting the mixture to a shear force, and, after the mixture has been subjected to the shear force, pressing the mixture into a free-standing film. The method may further include adding a solvent to the mixture. A resulting free-standing electrode film may include an amount of binder less than 4% by weight.
    Type: Application
    Filed: February 16, 2023
    Publication date: June 22, 2023
    Inventors: Linda Zhong, Kathleen Qiu, Martin Zea, Erika Shaw
  • Dry electrode manufacture by temperature activation method
    Patent number: 11616218
    Abstract: A method of manufacturing a free-standing electrode film includes preparing a mixture including an electrode active material, a conductive material, and a binder, heating the mixture to 70° C. or higher, subjecting the mixture to a shear force, and, after the mixture has been subjected to the shear force, pressing the mixture into a free-standing film. The method may further include adding a solvent to the mixture. A resulting free-standing electrode film may include an amount of binder less than 4% by weight.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: March 28, 2023
    Assignee: LICAP TECHNOLOGIES, INC.
    Inventors: Linda Zhong, Kathleen Qiu, Martin Zea, Erika Shaw
  • LITHIATION OF ELECTRODES FOR ENERGY STORAGE DEVICES AND METHOD FOR MAKING SAME
    Publication number: 20220216453
    Abstract: A method for lithiation of an electrode includes providing an electrode to be lithiated, providing a piece of lithium metal with predetermined weight attached to a conductive material, attaching the conductive material to a current collector of the electrode to be lithiated or to a metal tab connected to or from the electrode to be lithiated, placing the electrode to be lithiated, the piece of lithium, and the conductive material in a container, and filling the container with an electrolyte containing a lithium salt.
    Type: Application
    Filed: March 28, 2022
    Publication date: July 7, 2022
    Inventors: Kathleen Qiu, Linda Zhong, Martin Zea, Bae Kyun Kim, Alvaro Perez Rodriguez
  • Method of lithiation electrodes for energy storage devices
    Patent number: 11329264
    Abstract: A method for lithiation of an electrode includes providing an electrode to be lithiated, providing a piece of lithium metal with predetermined weight attached to a conductive material, attaching the conductive material to a current collector of the electrode to be lithiated or to a metal tab connected to or from the electrode to be lithiated, placing the electrode to be lithiated, the piece of lithium, and the conductive material in a container, and filling the container with an electrolyte containing a lithium salt.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: May 10, 2022
    Assignee: LICAP TECHNOLOGIES, INC.
    Inventors: Kathleen Qiu, Linda Zhong, Martin Zea, Bae Kyun Kim, Alvaro Perez Rodriguez
  • LITHIATION OF ELECTRODES FOR ENERGY STORAGE DEVICES AND METHOD OF MAKING SAME
    Publication number: 20210126234
    Abstract: A method for lithiation of an electrode includes providing an electrode to be lithiated, providing a piece of lithium metal with predetermined weight attached to a conductive material, attaching the conductive material to a current collector of the electrode to be lithiated or to a metal tab connected to or from the electrode to be lithiated, placing the electrode to be lithiated, the piece of lithium, and the conductive material in a container, and filling the container with an electrolyte containing a lithium salt.
    Type: Application
    Filed: October 19, 2020
    Publication date: April 29, 2021
    Inventors: Kathleen Qiu, Linda Zhong, Martin Zea, Bae Kyun Kim, Alvaro Perez Rodriguez
  • DRY ELECTRODE MANUFACTURE BY TEMPERATURE ACTIVATION METHOD
    Publication number: 20200388822
    Abstract: A method of manufacturing a free-standing electrode film includes preparing a mixture including an electrode active material, a conductive material, and a binder, heating the mixture to 70° C. or higher, subjecting the mixture to a shear force, and, after the mixture has been subjected to the shear force, pressing the mixture into a free-standing film. The method may further include adding a solvent to the mixture. A resulting free-standing electrode film may include an amount of binder less than 4% by weight.
    Type: Application
    Filed: May 14, 2020
    Publication date: December 10, 2020
    Inventors: Linda Zhong, Kathleen Qiu, Martin Zea, Erika Shaw
  • Lithiation of electrodes for cylindrical energy storage devices and method of making same
    Patent number: 10840558
    Abstract: A method for lithiation of an electrode includes providing a roll including an electrode to be lithiated, providing a piece of lithium metal with predetermined weight attached to a conductive material, attaching the conductive material to a current collector of the electrode to be lithiated or to a metal tab connected to or from the electrode to be lithiated, placing the roll, the piece of lithium, and the conductive material in a container, and filling the container with an electrolyte containing a lithium salt.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: November 17, 2020
    Assignee: LICAP NEW ENERGY TECHNOLOGY (TIANJIN) CO., LTD.
    Inventors: Kathleen Qiu, Linda Zhong, Martin Zea, David Kim
  • Lithiation of electrodes for cylindrical energy storage devices and method of making same
    Patent number: 10490858
    Abstract: A method for lithiation of an electrode includes providing a roll including an electrode to be lithiated, attaching a current collector to the roll, placing a piece of lithium metal with predetermined weight in contact with the current collector, enclosing the roll, the current collector, and the piece of lithium metal in a can with a lid, and filling the can with an electrolyte containing a lithium salt.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: November 26, 2019
    Inventor: Kathleen Qiu
  • LITHIATION OF ELECTRODES FOR CYLINDRICAL ENERGY STORAGE DEVICES AND METHOD OF MAKING SAME
    Publication number: 20190237813
    Abstract: A method for lithiation of an electrode includes providing a roll including an electrode to be lithiated, attaching a current collector to the roll, placing a piece of lithium metal with predetermined weight in contact with the current collector, enclosing the roll, the current collector, and the piece of lithium metal in a can with a lid, and filling the can with an electrolyte containing a lithium salt.
    Type: Application
    Filed: March 15, 2019
    Publication date: August 1, 2019
    Inventor: Kathleen Qiu
  • LITHIATION OF ELECTRODES FOR CYLINDRICAL ENERGY STORAGE DEVICES AND METHOD OF MAKING SAME
    Publication number: 20190237812
    Abstract: A method for lithiation of an electrode includes providing a roll including an electrode to be lithiated, providing a piece of lithium metal with predetermined weight attached to a conductive material, attaching the conductive material to a current collector of the electrode to be lithiated or to a metal tab connected to or from the electrode to be lithiated, placing the roll, the piece of lithium, and the conductive material in a container, and filling the container with an electrolyte containing a lithium salt.
    Type: Application
    Filed: January 18, 2019
    Publication date: August 1, 2019
    Inventor: Kathleen Qiu