Patents by Inventor Ruchira Dharmasena

Ruchira Dharmasena 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).

  • Patent number: 12113163
    Abstract: A system for coating a separator for a battery includes a separator feed and collection assembly configured to dispense the separator, a coating distribution device configured to flow a coating material toward the separator, and an electric field generator configured to generate an electric field in a gap between the coating distribution device and the separator.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: October 8, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ruchira Dharmasena, Shuru Chen, Fang Dai, Mei Cai, Sanaz Ketabi
  • Patent number: 11955666
    Abstract: A battery system includes an enclosure having opposed first and second major walls, a perimetral wall connecting the first and second major walls along respective perimeters thereof, and an interior defined by the first and second major walls and the perimetral wall, wherein the enclosure is configured for containing an anode assembly, a cathode assembly and an electrolyte within the interior. A longitudinal embossment is formed in the perimetral wall extending outward from the interior and extending along opposed adjacent portions of the first and second perimeters. A wall port is defined in the perimetral wall in fluid communication with the interior, wherein the wall port is configured for permitting flow of the electrolyte therethrough into and out of the interior. First and second electrodes extend through the perimetral wall and are configured for electrical connection with the anode assembly and cathode assembly, respectively.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: April 9, 2024
    Assignee: GM Global Technology Operations LLC
    Inventors: Ruchira Dharmasena, Meinan He, Mei Cai
  • Publication number: 20230121883
    Abstract: A system for coating a separator for a battery includes a separator feed and collection assembly configured to dispense the separator, a coating distribution device configured to flow a coating material toward the separator, and an electric field generator configured to generate an electric field in a gap between the coating distribution device and the separator.
    Type: Application
    Filed: October 20, 2021
    Publication date: April 20, 2023
    Inventors: Ruchira DHARMASENA, Shuru Chen, Fang Dai, Mei Cai, Sanaz Ketabi
  • Publication number: 20220238972
    Abstract: A battery system includes an enclosure having opposed first and second major walls, a perimetral wall connecting the first and second major walls along respective perimeters thereof, and an interior defined by the first and second major walls and the perimetral wall, wherein the enclosure is configured for containing an anode assembly, a cathode assembly and an electrolyte within the interior. A longitudinal embossment is formed in the perimetral wall extending outward from the interior and extending along opposed adjacent portions of the first and second perimeters. A wall port is defined in the perimetral wall in fluid communication with the interior, wherein the wall port is configured for permitting flow of the electrolyte therethrough into and out of the interior. First and second electrodes extend through the perimetral wall and are configured for electrical connection with the anode assembly and cathode assembly, respectively.
    Type: Application
    Filed: January 25, 2021
    Publication date: July 28, 2022
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ruchira Dharmasena, Meinan He, Mei Cai