Patents by Inventor Joykumar Thokchom

Joykumar Thokchom 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: 20240120470
    Abstract: A method of manufacturing a calendered cathode structure for a hybrid lithium metal cell includes depositing a first cathode coating layer without ionic liquid onto a cathode current collector, depositing a second cathode coating layer with ionic liquid onto the first coating layer, and depositing a third cathode coating layer without ionic liquid onto the second coating layer. A calendaring process is then performed on the cathode structure comprising the cathode current collector with the first, second, and third coating layers thereon such that a predetermined thickness and porosity for the cathode structure is achieved while at the same time the ionic liquid is spread throughout the cathode electrode without reaching the cathode current collector.
    Type: Application
    Filed: October 11, 2022
    Publication date: April 11, 2024
    Applicant: Sakuu Corporation
    Inventors: Joykumar THOKCHOM, Ali MODJTAHEDI, Yongtao MENG, Aditya UPRETI, Muhammad TARIQ
  • Publication number: 20240113298
    Abstract: A lithium cell for a lithium metal battery includes an electrolyte material, a cathode structure arranged on one side of the electrolyte material, the cathode structure including a cathode electrode and a cathode current collector, and an anode structure arranged on an opposite side of the electrolyte material from the cathode structure. The anode structure includes an anode current collector, a lithium metal anode arranged on a side of the anode current collector arranged facing the electrolyte material, a nanoceramic protective coating deposited on a surface of the lithium metal anode arranged facing the electrolyte material. The nanoceramic protective coating includes a nanoceramic material, a base polymer material, a binder material including a UV curable polymer, and one or more lithium salts.
    Type: Application
    Filed: October 4, 2022
    Publication date: April 4, 2024
    Applicant: Sakuu Corporation
    Inventors: Joykumar THOKCHOM, Ali MODJTAHEDI, Aditya UPRETI, Arun MENON
  • Publication number: 20240113393
    Abstract: A lithium cell for a lithium metal battery includes: an electrolyte material; a cathode structure arranged on one side of the electrolyte material, the cathode structure including a cathode electrode and a cathode current collector; and an anode structure arranged on an opposite side of the electrolyte material from the cathode structure. The anode structure includes: an anode current collector; a lithium metal anode arranged on a side of the anode current collector arranged facing the electrolyte material; and a protective coating deposited on a surface of the lithium metal anode and arranged facing the electrolyte material, wherein the protective coating extends beyond the lithium metal anode and onto the anode current collector so as to seal both a surface and edge regions of the lithium metal anode from contact with a liquid electrolyte of the electrolyte material.
    Type: Application
    Filed: September 20, 2023
    Publication date: April 4, 2024
    Applicant: Sakuu Corporation
    Inventors: Tara FOROOZAN, Ali MODJTAHEDI, Joykumar THOKCHOM, Aditya UPRETI, Bobak BAGHERI, Micheal GUO, Steven Zhichao SHI, Arwed NIESTROJ
  • Publication number: 20220399571
    Abstract: Provided herein is a high-volume continuous roll-to-roll method for manufacturing dimensionally stable, large format, high performance solid batteries using high lithium-ion conducting polymer matrix electrolyte (PME). The batteries can include a cathode layer sandwich with a thin contiguous PME layer across the anode and a high conducting PME in both the anode and cathode structures. The batteries can also retain a thin PME layer that functions as solid-state electrolyte between the cathode and anode thus maintaining continuity among the layers, resulting in minimal interface resistance and stronger structural integrity.
    Type: Application
    Filed: June 10, 2021
    Publication date: December 15, 2022
    Inventors: Joykumar Thokchom, Anaba Anani
  • Publication number: 20140220449
    Abstract: An active anode (10) is provided that includes a framework (11) of a first anodic material which contains large cavities (12) that include particles (13) of a second anodic material. The cavities have to be large enough so that a fully lithiated particles of the second anodic material fits into the cavity that contains it and does not apply stress to the framework. The first anodic material has a lower lithiation/delithiation potential than the second anodic material. To produce the anode cavities the second anodic material is coated with an organic coating which is then removed once the anodic layer is produced from a mixture of the first and second anodic materials.
    Type: Application
    Filed: April 7, 2014
    Publication date: August 7, 2014
    Inventors: Davorin Babic, Lonnie G Johnson, William L Rauch, Joykumar Thokchom
  • Publication number: 20130230777
    Abstract: An active anode (10) is provided that includes a framework (11) of a first anodic material which contains large cavities (12) that include particles (13) of a second anodic material. The cavities have to be large enough so that a fully lithiated particles of the second anodic material fits into the cavity that contains it and does not apply stress to the framework. The first anodic material has a lower lithium intercalation potential than the second anodic material. To produce the anode cavities the second anodic material is coated with an organic coating which is then removed once the anodic layer is produced from a mixture of the first and second anodic materials.
    Type: Application
    Filed: March 5, 2012
    Publication date: September 5, 2013
    Applicant: Johnson IP Holding, LLC
    Inventors: Davorin Babic, Lonnie G. Johnson, William L. Rauch, Joykumar Thokchom
  • Publication number: 20070117026
    Abstract: A solid composite electrolyte membrane for use in a lithium battery is provided which exhibits a conductivity ranging from about 10?4 S cm?1 to about 10?3 S cm?1 at ambient temperature. The membrane is formed by providing a glass or glass-ceramic powder formed from a mixture of lithium carbonate, alumina, titanium dioxide, and ammonium dihydrogen phosphate. The powder is mixed with a conditioning agent and at least one solvent, followed by the addition of a binder and one or more plasticizers. The resulting slurry is cast into a tape which is then subjected to a binder burn-off and sintering process to form the membrane. The resulting membrane may be a glass-ceramic composite having a porosity ranging from 0 to 50%, or the membrane may be further infiltrated with a polymer to form a water-impermeable polymeric-ceramic composite membrane.
    Type: Application
    Filed: November 20, 2006
    Publication date: May 24, 2007
    Inventors: Binod Kumar, Joykumar Thokchom