Patents by Inventor Ron E. Smith

Ron E. Smith 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).

  • HEAT STABILIZED MEMBRANE
    Publication number: 20240158589
    Abstract: A dry-process porous membrane having an oxygen induction time (OIT) greater than 3 minutes, greater than 5 minutes, greater than 10 minutes, greater than 15 minutes, greater than 20 minutes, or greater than 25 minutes where OIT is measured at 215° C. and 100% O2. The dry-process porous membrane may be a microporous polyolefin membrane.
    Type: Application
    Filed: March 1, 2022
    Publication date: May 16, 2024
    Inventors: Eric R. White, David Anzini, Ron E. Smith
  • MICROPOROUS MEMBRANE SEPARATORS FOR LITHIUM ION RECHARGEABLE BATTERIES AND RELATED METHODS
    Publication number: 20240006719
    Abstract: The present invention relates in at least selected embodiments to novel or improved microporous battery separators for lithium rechargeable batteries and/or related methods of making and/or using such separators. A particular inventive dry process battery separator or membrane separator exhibits a thickness that is less than about 14 ?m and has increased strength performance as defined by reduced splittiness. The mode of splitting failure has been investigated, and the improvement in splittiness quantified by a novel test method known as the Composite Splittiness Index (CSI).
    Type: Application
    Filed: August 14, 2023
    Publication date: January 4, 2024
    Inventors: Xiaomin Zhang, Kang Karen Xiao, Robert A. Nark, Ron E. Smith
  • Microporous membrane separators for lithium ion rechargeable batteries and related methods
    Patent number: 11728546
    Abstract: Several embodiments of a microporous battery separator for lithium rechargeable batteries and/or related methods of making and/or using such separators are disclosed. A dry process battery separator or membrane separator exhibits a thickness that is less than about 14 ?m and has increased strength performance as defined by reduced splittiness. The mode of splitting failure has been investigated, and the improvement in splittiness quantified by a test method known as the Composite Splittiness Index (CSI).
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: August 15, 2023
    Assignee: Celgard, LLC
    Inventors: Xiaomin Zhang, Kang Karen Xiao, Robert A. Nark, Ron E. Smith
  • MICROPOROUS MEMBRANE SEPARATORS FOR LITHIUM ION RECHARGEABLE BATTERIES AND RELATED METHODS
    Publication number: 20160149181
    Abstract: The present invention relates in at least selected embodiments to novel or improved microporous battery separators for lithium rechargeable batteries and/or related methods of making and/or using such separators. A particular inventive dry process battery separator or membrane separator exhibits a thickness that is less than about 14 ?m and has increased strength performance as defined by reduced splittiness. The mode of splitting failure has been investigated, and the improvement in splittiness quantified by a novel test method known as the Composite Splittiness Index (CSI).
    Type: Application
    Filed: November 24, 2015
    Publication date: May 26, 2016
    Inventors: Xiaomin Zhang, Kang Karen Xiao, Robert A. Nark, Ron E. Smith