Patents by Inventor Richard K. Holman
Richard K. Holman 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).
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Patent number: 11139467Abstract: Embodiments described herein relate generally to systems and methods for continuously and/or semi-continuously manufacturing semi-solid electrodes and batteries incorporating semi-solid electrodes. In some embodiments, the process of manufacturing a semi-solid electrode includes continuously dispensing a semi-solid electrode slurry onto a current collector, separating the semi-solid electrode slurry into discrete portions, and cutting the current collector to form a finished electrode.Type: GrantFiled: July 9, 2019Date of Patent: October 5, 2021Assignee: 24M Technologies, Inc.Inventors: Raymond Zagars, Naoki Ota, Matthew R. Tyler, Richard K. Holman, Mark Dudziak, Ricardo Bazzarella
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Publication number: 20210296731Abstract: Disclosed herein are embodiments of doped and undoped spherical or spheroidal lithium lanthanum zirconium oxide (LLZO) powder products, and methods of production using microwave plasma processing, which can be incorporated into solid state lithium ion batteries. Advantageously, embodiments of the disclosed LLZO powder display a high quality, high purity stoichiometry, small particle size, narrow size distribution, spherical morphology, and customizable crystalline structure.Type: ApplicationFiled: June 2, 2021Publication date: September 23, 2021Inventors: Gregory M. Wrobel, Richard K. Holman, Angshuman Pal, Kamal Hadidi
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Patent number: 11094487Abstract: Embodiments described herein relate generally to a current interrupt device (CID) including a frangible bulb that is configured to be thermally triggered. In some embodiments, the CID includes a breaking contact electrically coupled to a fixed contact and held in electrical contact by the frangible bulb. In some embodiments, the frangible bulb is configured to break at a temperature threshold. In some embodiments, the breaking contact is configured to bend, rotate and/or otherwise deform about a hinge point in order to become electrically disconnected from the fixed contact when the frangible bulb breaks. In some embodiments, opening the electrical circuit between the breaking contact and the fixed contact may prevent overcharging, overvoltage conditions, overcurrent conditions, thermal runaway, and/or other catastrophic failure events.Type: GrantFiled: June 24, 2019Date of Patent: August 17, 2021Assignee: 24M Technologies, Inc.Inventors: Ryan Michael Lawrence, Richard K. Holman
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Publication number: 20210249678Abstract: Embodiments described herein relate generally to electrochemical cells having high rate capability, and more particularly to devices, systems and methods of producing high capacity and high rate capability batteries having relatively thick semi-solid electrodes. In some embodiments, an electrochemical cell includes an anode and a semi-solid cathode. The semi-solid cathode includes a suspension of an active material of about 35% to about 75% by volume of an active material and about 0.5% to about 8% by volume of a conductive material in a non-aqueous liquid electrolyte. An ion-permeable membrane is disposed between the anode and the semi-solid cathode. The semi-solid cathode has a thickness of about 250 ?m to about 2,000 ?m, and the electrochemical cell has an area specific capacity of at least about 7 mAh/cm2 at a C-rate of C/4. In some embodiments, the semi-solid cathode slurry has a mixing index of at least about 0.9.Type: ApplicationFiled: April 26, 2021Publication date: August 12, 2021Applicant: 24M Technologies, Inc.Inventors: Yet-Ming CHIANG, Mihai DUDUTA, Richard K. HOLMAN, Pimpa LIMTHONGKUL, Taison TAN
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Patent number: 11018365Abstract: Embodiments described herein relate generally to electrochemical cells having high rate capability, and more particularly to devices, systems and methods of producing high capacity and high rate capability batteries having relatively thick semi-solid electrodes. In some embodiments, an electrochemical cell includes an anode and a semi-solid cathode. The semi-solid cathode includes a suspension of an active material of about 35% to about 75% by volume of an active material and about 0.5% to about 8% by volume of a conductive material in a non-aqueous liquid electrolyte. An ion-permeable membrane is disposed between the anode and the semi-solid cathode. The semi-solid cathode has a thickness of about 250 ?m to about 2,000 ?m, and the electrochemical cell has an area specific capacity of at least about 7 mAh/cm2 at a C-rate of C/4. In some embodiments, the semi-solid cathode slurry has a mixing index of at least about 0.9.Type: GrantFiled: October 8, 2019Date of Patent: May 25, 2021Assignee: 24M Technologies, Inc.Inventors: Yet-Ming Chiang, Mihai Duduta, Richard K. Holman, Pimpa Limthongkul, Taison Tan
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Publication number: 20210075000Abstract: Disclosed herein are embodiments of strain tolerant particle structures, methods of manufacturing such structures, and precursors to form said structures. In some embodiments, the structures can be formed of a network of nano-scale walls. The structures can be incorporated into powders, which can then be used for any number of applications, such as microwave plasma processing.Type: ApplicationFiled: September 3, 2020Publication date: March 11, 2021Inventors: Richard K. Holman, Leah Nation
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Publication number: 20200350542Abstract: Disclosed herein are embodiments of doped and undoped spherical or spheroidal lithium lanthanum zirconium oxide (LLZO) powder products, and methods of production using microwave plasma processing, which can be incorporated into solid state lithium ion batteries. Advantageously, embodiments of the disclosed LLZO powder display a high quality, high purity stoichiometry, small particle size, narrow size distribution, spherical morphology, and customizable crystalline structure.Type: ApplicationFiled: April 29, 2020Publication date: November 5, 2020Inventors: Gregory Wrobel, Richard K. Holman, Angshuman Pal, Kamal Hadidi
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Publication number: 20200203706Abstract: Disclosed herein are embodiments of a method and system for producing powders for lithium ion batteries utilizing plasma processing during the manufacture of the powders. Advantageously, embodiments of the disclosed methods can significantly reduce the manufacturing time, the overall number of steps, and the harmful byproducts of conventional lithium ion battery processing.Type: ApplicationFiled: December 19, 2019Publication date: June 25, 2020Inventors: Richard K. Holman, Gregory Wrobel, Kamal Hadidi
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Publication number: 20200161688Abstract: Embodiments described herein relate generally to electrochemical cells having high rate capability, and more particularly to devices, systems and methods of producing high capacity and high rate capability batteries having relatively thick semi-solid electrodes. In some embodiments, an electrochemical cell includes an anode and a semi-solid cathode. The semi-solid cathode includes a suspension of an active material of about 35% to about 75% by volume of an active material and about 0.5% to about 8% by volume of a conductive material in a non-aqueous liquid electrolyte. An ion-permeable membrane is disposed between the anode and the semi-solid cathode. The semi-solid cathode has a thickness of about 250 ?m to about 2,000 ?m, and the electrochemical cell has an area specific capacity of at least about 7 mAh/cm2 at a C-rate of C/4. In some embodiments, the semi-solid cathode slurry has a mixing index of at least about 0.9.Type: ApplicationFiled: October 8, 2019Publication date: May 21, 2020Applicant: 24M Technologies, Inc.Inventors: Yet-Ming CHIANG, Mihai DUDUTA, Richard K. HOLMAN, Pimpa LIMTHONGKUL, Taison TAN
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Publication number: 20200014025Abstract: Embodiments described herein relate generally to systems and methods for continuously and/or semi-continuously manufacturing semi-solid electrodes and batteries incorporating semi-solid electrodes. In some embodiments, the process of manufacturing a semi-solid electrode includes continuously dispensing a semi-solid electrode slurry onto a current collector, separating the semi-solid electrode slurry into discrete portions, and cutting the current collector to form a finished electrode.Type: ApplicationFiled: July 9, 2019Publication date: January 9, 2020Inventors: Raymond ZAGARS, Naoki OTA, Matthew R. TYLER, Richard K. HOLMAN, Mark DUDZIAK, Ricardo BAZZARELLA
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Publication number: 20190393477Abstract: Embodiments described herein relate generally to a current interrupt device (CID) including a frangible bulb that is configured to be thermally triggered. In some embodiments, the CID includes a breaking contact electrically coupled to a fixed contact and held in electrical contact by the frangible bulb. In some embodiments, the frangible bulb is configured to break at a temperature threshold. In some embodiments, the breaking contact is configured to bend, rotate and/or otherwise deform about a hinge point in order to become electrically disconnected from the fixed contact when the frangible bulb breaks. In some embodiments, opening the electrical circuit between the breaking contact and the fixed contact may prevent overcharging, overvoltage conditions, overcurrent conditions, thermal runaway, and/or other catastrophic failure events.Type: ApplicationFiled: June 24, 2019Publication date: December 26, 2019Inventors: Ryan Michael LAWRENCE, Richard K. HOLMAN
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Patent number: 9923180Abstract: Porous separators for use in electrochemical cells and methods of their manufacture are provided. The separators are porous structures comprising an electroactive material and an electronically insulating structural material, wherein the electroactive material forms a percolating path in the separator.Type: GrantFiled: June 2, 2008Date of Patent: March 20, 2018Assignee: A123 Systems LLCInventors: Karen E. Thomas-Alyea, Susan J. Babinec, Richard K. Holman
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Patent number: 9431146Abstract: This disclosure relates to compositions and methods of manufacture of electrodes for batteries, including rechargeable lithium batteries, wherein at least one electrode comprises an electroactive material and a malleable metal. The electrode may be substantially free of other conductive additives and organic binders. Manufacture of the electrode may be performed without solvent or sintering.Type: GrantFiled: June 23, 2010Date of Patent: August 30, 2016Assignee: A123 Systems LLCInventors: Yet-Ming Chiang, Shen J. Dillon, Richard K. Holman
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Patent number: 8709647Abstract: An electrochemical device includes a first electrode in electrical communication with a first current collector, a second electrode in electrical communication with a second current collector and a crosslinked solid polymer in contact with the first and second electrodes. At least one of the first and second electrodes includes a network of electrically connected particles comprising an electroactive material, and the particles of one electrode exert a repelling force on the other electrode when the first and second electrodes are combined with an uncrosslinked precursor to the solid polymer.Type: GrantFiled: November 18, 2011Date of Patent: April 29, 2014Assignee: A123 Systems LLCInventors: Antoni S. Gozdz, Richard K. Holman, Andrew L. Loxley, Ronnie Wilkins
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Publication number: 20120328942Abstract: An electrode has a front face furthest from the current collector and a back face closest to the current collector and Is disposed on the current collector, and the electrode has a primary gradient of one of a chemical, physical and performance properties of the electroactive particle composition between the front and back faces, with the proviso that the primary gradient is not a bulk porosity gradient. In some embodiments, the electrode further comprises one or more secondary gradients Imposed over the primary gradient.Type: ApplicationFiled: March 7, 2011Publication date: December 27, 2012Applicant: A123 Systems, Inc.Inventors: Karen E. Thomas-Alyea, Richard K. Holman, Gilbert N. Riley, JR., Susan J. Babinec
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Publication number: 20120214056Abstract: An electrochemical device includes a first electrode in electrical communication with a first current collector, a second electrode in electrical communication with a second current collector and a crosslinked solid polymer in contact with the first and second electrodes. At least one of the first and second electrodes includes a network of electrically connected particles comprising an electroactive material, and the particles of one electrode exert a repelling force on the other electrode when the first and second electrodes are combined with an uncrosslinked precursor to the solid polymer.Type: ApplicationFiled: November 18, 2011Publication date: August 23, 2012Applicant: A123 Systems, Inc.Inventors: Antoni S. Gozdz, Richard K. Holman, Andrew Loxley, Ronnie Wilkins
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Patent number: 8206469Abstract: An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.Type: GrantFiled: June 27, 2011Date of Patent: June 26, 2012Assignees: A123 Systems, Inc., Massachusetts Institute of TechnologyInventors: Yet-Ming Chiang, William D. Moorehead, Antoni S. Gozdz, Richard K. Holman, Andrew L. Loxley, Gilbert N. Riley, Jr., Michael S. Viola
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Patent number: 8168326Abstract: An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.Type: GrantFiled: July 30, 2009Date of Patent: May 1, 2012Assignees: A123 Systems, Inc., Massachusetts Institute of TechnologyInventors: Yet-Ming Chiang, William D. Moorehead, Antoni S. Gozdz, Richard K. Holman, Andrew L. Loxley, Gilbert N. Riley, Jr., Michael S. Viola
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Patent number: 8088512Abstract: An electrochemical device includes a first electrode in electrical communication with a first current collector, a second electrode in electrical communication with a second current collector and a crosslinked solid polymer in contact with the first and second electrodes. At least one of the first and second electrodes includes a network of electrically connected particles comprising an electroactive material, and the particles of one electrode exert a repelling force on the other electrode when the first and second electrodes are combined with an uncrosslinked precursor to the solid polymer.Type: GrantFiled: June 16, 2008Date of Patent: January 3, 2012Assignee: A123 Systems, Inc.Inventors: Antoni S. Gozdz, Richard K. Holman, Andrew L. Loxley, Ronnie Wilkins
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Publication number: 20110278170Abstract: An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.Type: ApplicationFiled: June 27, 2011Publication date: November 17, 2011Applicant: A123 SYSTEMS, INC.Inventors: Yet-Ming CHIANG, William Douglas MOOREHEAD, Antoni S. GOZDZ, Richard K. HOLMAN, Andrew LOXLEY, Gilberg N. RILEY, JR., Michael S. VIOLA