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: 11804634Abstract: 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: GrantFiled: February 17, 2022Date of Patent: October 31, 2023Assignee: Hollingsworth & Vose CompanyInventors: John A. Wertz, Nicolas Clement, Sachin Kumar, Akshay Ashirgade
-
Publication number: 20220247037Abstract: 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: ApplicationFiled: February 17, 2022Publication date: August 4, 2022Applicant: Hollingsworth & Vose CompanyInventors: John A. Wertz, Nicolas Clement, Sachin Kumar, Akshay Ashirgade
-
Patent number: 11289771Abstract: 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: GrantFiled: October 16, 2018Date of Patent: March 29, 2022Assignee: Hollingsworth & Vose CompanyInventors: John A. Wertz, Nicolas Clement, Sachin Kumar, Akshay Ashirgade
-
Patent number: 10431796Abstract: 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: GrantFiled: July 6, 2017Date of Patent: October 1, 2019Assignee: Hollingsworth & Vose CompanyInventors: Akshay Ashirgade, Zhiping Jiang, Nicolas Clement
-
Publication number: 20190280273Abstract: 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: ApplicationFiled: February 22, 2019Publication date: September 12, 2019Applicant: Hollingsworth & Vose CompanyInventors: 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: 10270074Abstract: 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: GrantFiled: February 19, 2016Date of Patent: April 23, 2019Assignee: Hollingsworth & Vose CompanyInventors: 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: 20190115579Abstract: 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: ApplicationFiled: October 16, 2018Publication date: April 18, 2019Applicant: Hollingsworth & Vose CompanyInventors: John A. Wertz, Nicolas Clement, Sachin Kumar, Akshay Ashirgade
-
Patent number: 10135051Abstract: 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: GrantFiled: December 15, 2016Date of Patent: November 20, 2018Assignee: Hollingsworth & Vose CompanyInventors: John A. Wertz, Nicolas Clement, Sachin Kumar, Akshay Ashirgade
-
Publication number: 20180269452Abstract: 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: ApplicationFiled: May 18, 2018Publication date: September 20, 2018Applicant: Hollingsworth & Vose CompanyInventors: 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: 10014501Abstract: 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: GrantFiled: March 20, 2015Date of Patent: July 3, 2018Assignee: Hollingsworth & Vose CompanyInventors: 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: 20180175392Abstract: 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: ApplicationFiled: December 15, 2016Publication date: June 21, 2018Applicant: Hollingsworth & Vose CompanyInventors: John A. Wertz, Nicolas Clement, Sachin Kumar, Akshay Ashirgade
-
Publication number: 20180047964Abstract: 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: ApplicationFiled: February 19, 2016Publication date: February 15, 2018Applicant: Hollingsworth & Vose CompanyInventors: 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: 20180026247Abstract: 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: ApplicationFiled: July 6, 2017Publication date: January 25, 2018Applicant: Hollingsworth & Vose CompanyInventors: Akshay Ashirgade, Zhiping Jiang
-
Patent number: 9728756Abstract: 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: GrantFiled: February 8, 2017Date of Patent: August 8, 2017Assignee: Hollingsworth & Vose CompanyInventors: Akshay Ashirgade, Zhiping Jiang
-
Publication number: 20170179454Abstract: 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: ApplicationFiled: March 20, 2015Publication date: June 22, 2017Applicant: Hollingsworth & Vose CompanyInventors: 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: 20170170442Abstract: 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: ApplicationFiled: February 8, 2017Publication date: June 15, 2017Applicant: Hollingsworth & Vose CompanyInventors: Akshay Ashirgade, Zhiping Jiang
-
Patent number: 9627668Abstract: 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: GrantFiled: December 14, 2016Date of Patent: April 18, 2017Assignee: Hollingsworth & Vose CompanyInventors: Akshay Ashirgade, Zhiping Jiang
-
Publication number: 20170092917Abstract: 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: ApplicationFiled: December 14, 2016Publication date: March 30, 2017Applicant: Hollingsworth & Vose CompanyInventors: Akshay Ashirgade, Zhiping Jiang
-
Patent number: 9577236Abstract: 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: GrantFiled: February 9, 2016Date of Patent: February 21, 2017Assignee: Hollingsworth & Vose CompanyInventors: Akshay Ashirgade, Zhiping Jiang
-
Publication number: 20160164058Abstract: 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: ApplicationFiled: February 9, 2016Publication date: June 9, 2016Applicant: Hollingsworth & Vose CompanyInventors: Akshay Ashirgade, Zhiping Jiang