Patents Assigned to LiCAP Technologies, Inc.
  • Patent number: 12573605
    Abstract: A free-standing electrode film may comprise an electrode active material and a composite binder comprising polytetrafluoroethylene (PTFE) and polyvinylpyrrolidone (PVP). An electrode for an energy storage device may comprise a current collector and a film on the current collector, the film including an electrode active material and a composite binder comprising PTFE and PVP. A method of manufacturing a free-standing electrode film may comprise preparing a mixture including an electrode active material and a composite binder, the composite binder comprising PTFE and one or more additional binders selected from the group consisting of PVP, polyvinylidene fluoride (PVDF), polyethylene oxide (PEO), and carboxymethylcellulose (CMC). The method may further comprise adding a solvent to the mixture, subjecting the mixture to a shear force, and, after the solvent has been added and the mixture has been subjected to the shear force, pressing the mixture into a free-standing film.
    Type: Grant
    Filed: June 12, 2024
    Date of Patent: March 10, 2026
    Assignee: LICAP TECHNOLOGIES, INC.
    Inventors: Bibek Tiwari, Linda Zhong, Bae Hyun Kim, Hyeunhwan An
  • Patent number: 12463201
    Abstract: A method of manufacturing a free-standing electrode film includes preparing a mixture including an electrode active material, a binder, and an additive solution or conductive paste, the additive solution or conductive paste being in an amount less than 5% by weight of the mixture and including a polymer additive and a liquid carrier, as well as a conductive material in the case of a conductive paste. The mixture may have total solid contents greater than 95% by weight. Preparing the mixture may include mixing the additive solution or conductive paste with the electrode active material to lubricate the electrode active material and subsequently adding and mixing in the binder. The method may further include 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.
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: November 4, 2025
    Assignee: LICAP TECHNOLOGIES, INC.
    Inventors: Linda Zhong, Erika Shaw, Bae Kyun Kim
  • Patent number: 12327856
    Abstract: A method of manufacturing an electrode block for a solid-state battery includes providing an electrode film with a current collector on a first side of the electrode film, coating a layer of dry electrolyte powder on a second side of the electrode film opposite the first side, and pressing the dry electrolyte powder coated on the electrode film to produce a solid electrolyte layer on the electrode film. A method of manufacturing an electrolyte film for a solid-state battery includes preparing a powder mixture including at least one type of fibrillizable binder and at least one type of dry electrolyte powder, the at least one type of dry electrolyte powder being 80-97% of the powder mixture by weight, fibrillizing the at least one type of fibrillizable binder in the powder mixture by subjecting the powder mixture to a shear force, and pressing the powder mixture into a free-standing film.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: June 10, 2025
    Assignee: LICAP TECHNOLOGIES, INC.
    Inventor: Linda Zhong
  • Patent number: 12040474
    Abstract: A free-standing electrode film may comprise an electrode active material and a composite binder comprising polytetrafluoroethylene (PTFE) and polyvinylpyrrolidone (PVP). An electrode for an energy storage device may comprise a current collector and a film on the current collector, the film including an electrode active material and a composite binder comprising PTFE and PVP. A method of manufacturing a free-standing electrode film may comprise preparing a mixture including an electrode active material and a composite binder, the composite binder comprising PTFE and one or more additional binders selected from the group consisting of PVP, polyvinylidene fluoride (PVDF), polyethylene oxide (PEO), and carboxymethylcellulose (CMC). The method may further comprise adding a solvent to the mixture, subjecting the mixture to a shear force, and, after the solvent has been added and the mixture has been subjected to the shear force, pressing the mixture into a free-standing film.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: July 16, 2024
    Assignee: LICAP TECHNOLOGIES, INC.
    Inventors: Bibek Tiwari, Linda Zhong, Bae Hyun Kim, Hyeunhwan An
  • 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
  • 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
  • Patent number: 11508956
    Abstract: A method of manufacturing a free-standing electrode film includes preparing a mixture including an electrode active material, a binder, and an additive solution or conductive paste, the additive solution or conductive paste being in an amount less than 5% by weight of the mixture and including a polymer additive and a liquid carrier, as well as a conductive material in the case of a conductive paste. The mixture may have total solid contents greater than 95% by weight. Preparing the mixture may include mixing the additive solution or conductive paste with the electrode active material to lubricate the electrode active material and subsequently adding and mixing in the binder. The method may further include 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.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: November 22, 2022
    Assignee: LiCap Technologies, Inc.
    Inventors: Linda Zhong, Erika Shaw, Bae Kyun Kim
  • Patent number: 11367861
    Abstract: A manufacturing method for the formation of lithium, potassium, and/or calcium intercalation compounds on a negative electrode for a battery or capacitor cell is disclosed. The battery or capacitor cell is constructed with a negative electrode that may contain graphitic carbon, silicon, metal oxide, and/or complex metal oxides and a lithium, potassium, and/or calcium ion source supplemental electrode. After construction of the cell, a method of controlled electrical contact is applied between the positive electrode and negative electrode to accelerate and regulate a process of ion exchange between the supplemental metal ion source electrode and the negative electrode which results in the formation of intercalation compounds within the negative electrode, and produces a battery or capacitor with a higher working voltage, high cycle life, and long DC life.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: June 21, 2022
    Assignee: LiCap Technologies, Inc.
    Inventor: Jonathan Hart
  • 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
  • Patent number: 10833324
    Abstract: A method for fabricating an electrode, includes: determining a thickness of an active layer; selecting a lithium (Li) foil having a specified thickness; determining a Li layer pattern for the Li foil based on a portion of a surface of the active layer to be covered by the Li foil; and pressing the Li layer pattern into the surface of the active layer.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: November 10, 2020
    Assignee: LICAP TECHNOLOGIES, INC.
    Inventor: Linda Zhong
  • Patent number: 10505182
    Abstract: A method for fabricating an electrode includes: determining a thickness of an active layer; selecting lithium (Li) foil having a specified thickness; determining widths of one or more Li strips based on an active layer to Li layer weight ratio or volume ratio; laminating the active layer onto a conductive substrate; forming one or more grooves in the active layer exposing a bare surface of the conductive substrate; and pressing the one or more Li strips into the one or more grooves, wherein widths of the one or more grooves are slightly larger than the widths of the Li strips.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: December 10, 2019
    Assignee: LICAP TECHNOLOGIES, INC.
    Inventor: Linda Zhong
  • Patent number: 10453622
    Abstract: A method for producing an electrode for an energy storage device includes: forming a current collector from a conductive material; forming a primer layer on the current collector; injecting dry powder electrode materials into the primer layer, wherein the dry powder electrode materials injected into the primer layer form an electrode film in electrical contact with the current collector.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: October 22, 2019
    Assignee: LiCAP Technologies, Inc.
    Inventors: Linda Zhong, Martin Matthew Zea, Kathleen Jingling Qiu