Patents by Inventor Akshay Ashirgade

Akshay Ashirgade 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: 11804634
    Abstract: Battery components are generally provided. In some embodiments, the battery components can be used as pasting paper and/or capacitance layers for batteries, such as lead acid batteries. The battery components described herein may comprise a plurality of fibers. The battery component may include, in some embodiments, a plurality of fibers and, optionally, one or more additives such as conductive carbon and/or activated carbon. In certain embodiments, the plurality of fibers include relatively coarse glass fibers (e.g., having an average diameter of greater than or equal to 2 microns), relatively fine glass fibers (e.g., having an average diameter of less than 2 microns), and/or fibrillated fibers. In some instances, such fibers may be present in amounts such that the battery component has a particular surface area, mean pore size, and/or dry tensile strength.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: October 31, 2023
    Assignee: Hollingsworth & Vose Company
    Inventors: John A. Wertz, Nicolas Clement, Sachin Kumar, Akshay Ashirgade
  • Publication number: 20220247037
    Abstract: Battery components are generally provided. In some embodiments, the battery components can be used as pasting paper and/or capacitance layers for batteries, such as lead acid batteries. The battery components described herein may comprise a plurality of fibers. The battery component may include, in some embodiments, a plurality of fibers and, optionally, one or more additives such as conductive carbon and/or activated carbon. In certain embodiments, the plurality of fibers include relatively coarse glass fibers (e.g., having an average diameter of greater than or equal to 2 microns), relatively fine glass fibers (e.g., having an average diameter of less than 2 microns), and/or fibrillated fibers. In some instances, such fibers may be present in amounts such that the battery component has a particular surface area, mean pore size, and/or dry tensile strength.
    Type: Application
    Filed: February 17, 2022
    Publication date: August 4, 2022
    Applicant: Hollingsworth & Vose Company
    Inventors: John A. Wertz, Nicolas Clement, Sachin Kumar, Akshay Ashirgade
  • Patent number: 11289771
    Abstract: Battery components are generally provided. In some embodiments, the battery components can be used as pasting paper and/or capacitance layers for batteries, such as lead acid batteries. The battery components described herein may comprise a plurality of fibers. The battery component may include, in some embodiments, a plurality of fibers and, optionally, one or more additives such as conductive carbon and/or activated carbon. In certain embodiments, the plurality of fibers include relatively coarse glass fibers (e.g., having an average diameter of greater than or equal to 2 microns), relatively fine glass fibers (e.g., having an average diameter of less than 2 microns), and/or fibrillated fibers. In some instances, such fibers may be present in amounts such that the battery component has a particular surface area, mean pore size, and/or dry tensile strength.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: March 29, 2022
    Assignee: Hollingsworth & Vose Company
    Inventors: John A. Wertz, Nicolas Clement, Sachin Kumar, Akshay Ashirgade
  • Patent number: 10431796
    Abstract: Disclosed is a battery separator, comprising two fiber regions comprising glass fibers, and a middle fiber region disposed between them comprising larger average diameter fibers and specified amounts of silica, or fine fibers, or both; and processes for making the separator. Also disclosed is a battery separator, comprising a fiber region and either one or two silica-containing region(s) adjacent thereto, each of the regions containing a specified amount of silica; and processes for making the separator. Such separators are useful, e.g., in lead-acid batteries.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: October 1, 2019
    Assignee: Hollingsworth & Vose Company
    Inventors: Akshay Ashirgade, Zhiping Jiang, Nicolas Clement
  • Publication number: 20190280273
    Abstract: Non-woven webs that can be used as battery separators for batteries, such as lead acid batteries, are generally provided. In some embodiments, battery separators comprising a non-woven web including one or more chemical additives are provided. The chemical additives may impart beneficial properties, such as enhanced separator stability and/or battery performance. In some embodiments, the chemical additive(s) may confer resistance to oxidation, heavy metal deposition, and/or formation of short circuits during cycling of a battery including the battery separator. The respective characteristics and/or amounts of the chemical additive(s) may be selected to impart desirable properties while having relatively minimal or no adverse effects on another property of the battery separator and/or the battery.
    Type: Application
    Filed: February 22, 2019
    Publication date: September 12, 2019
    Applicant: Hollingsworth & Vose Company
    Inventors: Gubbi Krishnappa Natesh, Mahadevaswamy Kodimole Mahadevappa, Krishna Marchigowda, Harish Moddegowdru Ramaswamy, Akshay Ashirgade, Nicolas Clement, John A. Wertz, Richard O. Angus, JR., Zhiping Jiang
  • Patent number: 10270074
    Abstract: Non-woven webs that can be used as battery separators for batteries, such as lead acid batteries, are generally provided. In some embodiments, battery separators comprising a non-woven web including one or more chemical additives are provided. The chemical additives may impart beneficial properties, such as enhanced separator stability and/or battery performance. In some embodiments, the chemical additive(s) may confer resistance to oxidation, heavy metal deposition, and/or formation of short circuits during cycling of a battery including the battery separator. The respective characteristics and/or amounts of the chemical additive(s) may be selected to impart desirable properties while having relatively minimal or no adverse effects on another property of the battery separator and/or the battery.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: April 23, 2019
    Assignee: Hollingsworth & Vose Company
    Inventors: Gubbi Krishnappa Natesh, Mahadevaswamy Kodimole Mahadevappa, Krishna Marchigowda, Harish Moddegowdru Ramaswamy, Akshay Ashirgade, Nicolas Clement, John A. Wertz, Richard O. Angus, Jr., Zhiping Jiang
  • Publication number: 20190115579
    Abstract: Battery components are generally provided. In some embodiments, the battery components can be used as pasting paper and/or capacitance layers for batteries, such as lead acid batteries. The battery components described herein may comprise a plurality of fibers. The battery component may include, in some embodiments, a plurality of fibers and, optionally, one or more additives such as conductive carbon and/or activated carbon. In certain embodiments, the plurality of fibers include relatively coarse glass fibers (e.g., having an average diameter of greater than or equal to 2 microns), relatively fine glass fibers (e.g., having an average diameter of less than 2 microns), and/or fibrillated fibers. In some instances, such fibers may be present in amounts such that the battery component has a particular surface area, mean pore size, and/or dry tensile strength.
    Type: Application
    Filed: October 16, 2018
    Publication date: April 18, 2019
    Applicant: Hollingsworth & Vose Company
    Inventors: John A. Wertz, Nicolas Clement, Sachin Kumar, Akshay Ashirgade
  • Patent number: 10135051
    Abstract: Battery components are generally provided. In some embodiments, the battery components can be used as pasting paper and/or capacitance layers for batteries, such as lead acid batteries. The battery components described herein may comprise a plurality of fibers. The battery component may include, in some embodiments, a plurality of fibers and, optionally, one or more additives such as conductive carbon and/or activated carbon. In certain embodiments, the plurality of fibers include relatively coarse glass fibers (e.g., having an average diameter of greater than or equal to 2 microns), relatively fine glass fibers (e.g., having an average diameter of less than 2 microns), and/or fibrillated fibers. In some instances, such fibers may be present in amounts such that the battery component has a particular surface area, mean pore size, and/or dry tensile strength.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: November 20, 2018
    Assignee: Hollingsworth & Vose Company
    Inventors: John A. Wertz, Nicolas Clement, Sachin Kumar, Akshay Ashirgade
  • Publication number: 20180269452
    Abstract: In some embodiments, a battery separator described herein may comprise a layer having a relatively low apparent density; for example, the density that includes any unoccupied space within the outermost boundaries of the layer may be relatively low. The low apparent density may be attributed to, at least in part, the geometry of the layer. For instance, in some embodiments, the layer may include undulations and/or have at least one non-planar surface (e.g., a corrugated layer; an embossed layer). In some embodiments, a battery comprising a layer having a relatively low apparent density may have desirable properties, including relatively low electrical resistance and/or relatively high capacity. The battery separators described herein may be well suited for a variety of battery types, including lead acid batteries.
    Type: Application
    Filed: May 18, 2018
    Publication date: September 20, 2018
    Applicant: Hollingsworth & Vose Company
    Inventors: Gubbi Krishnappa Natesh, Krishna Marchigowda, Basavaraju Girisha, Kameswara Rao Patchigolla Venkata, Nicolas Clement, Akshay Ashirgade, Sachin Kumar, John A. Wertz, Richard O. Angus, JR., Zhiping Jiang
  • Patent number: 10014501
    Abstract: In some embodiments, a battery separator described herein may comprise a layer having a relatively low apparent density; for example, the density that includes any unoccupied space within the outermost boundaries of the layer may be relatively low. The low apparent density may be attributed to, at least in part, the geometry of the layer. For instance, in some embodiments, the layer may include undulations and/or have at least one non-planar surface (e.g., a corrugated layer; an embossed layer). In some embodiments, a battery comprising a layer having a relatively low apparent density may have desirable properties, including relatively low electrical resistance and/or relatively high capacity. The battery separators described herein may be well suited for a variety of battery types, including lead acid batteries.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: July 3, 2018
    Assignee: Hollingsworth & Vose Company
    Inventors: Gubbi Krishnappa Natesh, Krishna Marchigowda, Basavaraju Girisha, Kameswara Rao Patchigolla Venkata, Nicolas Clement, Akshay Ashirgade, Sachin Kumar, John A. Wertz, Richard O. Angus, Jr., Zhiping Jiang
  • Publication number: 20180175392
    Abstract: Battery components are generally provided. In some embodiments, the battery components can be used as pasting paper and/or capacitance layers for batteries, such as lead acid batteries. The battery components described herein may comprise a plurality of fibers. The battery component may include, in some embodiments, a plurality of fibers and, optionally, one or more additives such as conductive carbon and/or activated carbon. In certain embodiments, the plurality of fibers include relatively coarse glass fibers (e.g., having an average diameter of greater than or equal to 2 microns), relatively fine glass fibers (e.g., having an average diameter of less than 2 microns), and/or fibrillated fibers. In some instances, such fibers may be present in amounts such that the battery component has a particular surface area, mean pore size, and/or dry tensile strength.
    Type: Application
    Filed: December 15, 2016
    Publication date: June 21, 2018
    Applicant: Hollingsworth & Vose Company
    Inventors: John A. Wertz, Nicolas Clement, Sachin Kumar, Akshay Ashirgade
  • Publication number: 20180047964
    Abstract: Non-woven webs that can be used as battery separators for batteries, such as lead acid batteries, are generally provided. In some embodiments, battery separators comprising a non-woven web including one or more chemical additives are provided. The chemical additives may impart beneficial properties, such as enhanced separator stability and/or battery performance. In some embodiments, the chemical additive(s) may confer resistance to oxidation, heavy metal deposition, and/or formation of short circuits during cycling of a battery including the battery separator. The respective characteristics and/or amounts of the chemical additive(s) may be selected to impart desirable properties while having relatively minimal or no adverse effects on another property of the battery separator and/or the battery.
    Type: Application
    Filed: February 19, 2016
    Publication date: February 15, 2018
    Applicant: Hollingsworth & Vose Company
    Inventors: Gubbi Krishnappa Natesh, Mahadevaswamy Kodimole Mahadevappa, Krishna Marchigowda, Harish Moddegowdru Ramaswamy, Akshay Ashirgade, Nicolas Clement, Jonh A. Wertz, Richard O. Angus, JR., Zhiping Jiang
  • Publication number: 20180026247
    Abstract: Disclosed is a battery separator, comprising two fiber regions comprising glass fibers, and a middle fiber region disposed between them comprising larger average diameter fibers and specified amounts of silica, or fine fibers, or both; and processes for making the separator. Also disclosed is a battery separator, comprising a fiber region and either one or two silica-containing region(s) adjacent thereto, each of the regions containing a specified amount of silica; and processes for making the separator. Such separators are useful, e.g., in lead-acid batteries.
    Type: Application
    Filed: July 6, 2017
    Publication date: January 25, 2018
    Applicant: Hollingsworth & Vose Company
    Inventors: Akshay Ashirgade, Zhiping Jiang
  • Patent number: 9728756
    Abstract: Disclosed is a battery separator, comprising two fiber regions comprising glass fibers, and a middle fiber region disposed between them comprising larger average diameter fibers and specified amounts of silica, or fine fibers, or both; and processes for making the separator. Also disclosed is a battery separator, comprising a fiber region and either one or two silica-containing region(s) adjacent thereto, each of the regions containing a specified amount of silica; and processes for making the separator. Such separators are useful, e.g., in lead-acid batteries.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: August 8, 2017
    Assignee: Hollingsworth & Vose Company
    Inventors: Akshay Ashirgade, Zhiping Jiang
  • Publication number: 20170179454
    Abstract: In some embodiments, a battery separator described herein may comprise a layer having a relatively low apparent density; for example, the density that includes any unoccupied space within the outermost boundaries of the layer may be relatively low. The low apparent density may be attributed to, at least in part, the geometry of the layer. For instance, in some embodiments, the layer may include undulations and/or have at least one non-planar surface (e.g., a corrugated layer; an embossed layer). In some embodiments, a battery comprising a layer having a relatively low apparent density may have desirable properties, including relatively low electrical resistance and/or relatively high capacity. The battery separators described herein may be well suited for a variety of battery types, including lead acid batteries.
    Type: Application
    Filed: March 20, 2015
    Publication date: June 22, 2017
    Applicant: Hollingsworth & Vose Company
    Inventors: Gubbi Krishnappa Natesh, Krishna Marchigowda, Basavaraju Girisha, Kameswara Rao Patchigolla Venkata, Nicolas Clement, Akshay Ashirgade, Sachin Kumar, John A. Wertz, Richard O. Angus, JR., Zhiping Jiang
  • Publication number: 20170170442
    Abstract: Disclosed is a battery separator, comprising two fiber regions comprising glass fibers, and a middle fiber region disposed between them comprising larger average diameter fibers and specified amounts of silica, or fine fibers, or both; and processes for making the separator. Also disclosed is a battery separator, comprising a fiber region and either one or two silica-containing region(s) adjacent thereto, each of the regions containing a specified amount of silica; and processes for making the separator. Such separators are useful, e.g., in lead-acid batteries.
    Type: Application
    Filed: February 8, 2017
    Publication date: June 15, 2017
    Applicant: Hollingsworth & Vose Company
    Inventors: Akshay Ashirgade, Zhiping Jiang
  • Patent number: 9627668
    Abstract: Disclosed is a battery separator, comprising two fiber regions comprising glass fibers, and a middle fiber region disposed between them comprising larger average diameter fibers and specified amounts of silica, or fine fibers, or both; and processes for making the separator. Also disclosed is a battery separator, comprising a fiber region and either one or two silica-containing region(s) adjacent thereto, each of the regions containing a specified amount of silica; and processes for making the separator. Such separators are useful, e.g., in lead-acid batteries.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: April 18, 2017
    Assignee: Hollingsworth & Vose Company
    Inventors: Akshay Ashirgade, Zhiping Jiang
  • Publication number: 20170092917
    Abstract: Disclosed is a battery separator, comprising two fiber regions comprising glass fibers, and a middle fiber region disposed between them comprising larger average diameter fibers and specified amounts of silica, or fine fibers, or both; and processes for making the separator. Also disclosed is a battery separator, comprising a fiber region and either one or two silica-containing region(s) adjacent thereto, each of the regions containing a specified amount of silica; and processes for making the separator. Such separators are useful, e.g., in lead-acid batteries.
    Type: Application
    Filed: December 14, 2016
    Publication date: March 30, 2017
    Applicant: Hollingsworth & Vose Company
    Inventors: Akshay Ashirgade, Zhiping Jiang
  • Patent number: 9577236
    Abstract: Disclosed is a battery separator, comprising two fiber regions comprising glass fibers, and a middle fiber region disposed between them comprising larger average diameter fibers and specified amounts of silica, or fine fibers, or both; and processes for making the separator. Also disclosed is a battery separator, comprising a fiber region and either one or two silica-containing region(s) adjacent thereto, each of the regions containing a specified amount of silica; and processes for making the separator. Such separators are useful, e.g., in lead-acid batteries.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: February 21, 2017
    Assignee: Hollingsworth & Vose Company
    Inventors: Akshay Ashirgade, Zhiping Jiang
  • Publication number: 20160164058
    Abstract: Disclosed is a battery separator, comprising two fiber regions comprising glass fibers, and a middle fiber region disposed between them comprising larger average diameter fibers and specified amounts of silica, or fine fibers, or both; and processes for making the separator. Also disclosed is a battery separator, comprising a fiber region and either one or two silica-containing region(s) adjacent thereto, each of the regions containing a specified amount of silica; and processes for making the separator. Such separators are useful, e.g., in lead-acid batteries.
    Type: Application
    Filed: February 9, 2016
    Publication date: June 9, 2016
    Applicant: Hollingsworth & Vose Company
    Inventors: Akshay Ashirgade, Zhiping Jiang