Patents by Inventor Qingmin Xu
Qingmin Xu 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: 11881581Abstract: The present disclosure relates to a method of making core-shell and yolk-shell nanoparticles, and to electrodes comprising the same. The core-shell and yolk-shell nanoparticles and electrodes comprising them are suitable for use in electrochemical cells, such as fluoride shuttle batteries. The shell may protect the metal core from oxidation, including in an electrochemical cell. In some embodiments, an electrochemically active structure includes a dimensionally changeable active material forming a particle that expands or contracts upon reaction with or release of fluoride ions. One or more particles are at least partially surrounded with a fluoride-conducting encapsulant and optionally one or more voids are formed between the active material and the encapsulant using sacrificial layers or selective etching. When the electrochemically active structures are used in secondary batteries, the presence of voids can accommodate dimensional changes of the active material.Type: GrantFiled: December 3, 2021Date of Patent: January 23, 2024Assignees: HONDA MOTOR CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGYInventors: Nam Hawn Chou, Kaoru Omichi, Ryan McKenney, Qingmin Xu, Christopher Brooks, Simon C. Jones, Isabelle M. Darolles, Hongjin Tan
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Patent number: 11749797Abstract: A fluoride shuttle (F-shuttle) battery and nanostructures of copper based cathode materials in the fluoride shuttle battery. The F-shuttle batteries include a liquid electrolyte, which allows the F-shuttle batteries to operate under room temperature. The minimum thickness of copper layer within the copper nanostructures is no more than 20 nm. The thickness of copper layer within the copper nanostructures is controlled and reduced to ensure the energy densities of F-shuttle batteries.Type: GrantFiled: June 18, 2019Date of Patent: September 5, 2023Assignees: HONDA MOTOR CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGYInventors: Qingmin Xu, Christopher J. Brooks, Ryan Mckenney, Nam Hawn Chou, Kaoru Omichi, Simon C. Jones, Thomas F. Miller, III, Stephen A. Munoz
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Patent number: 11728485Abstract: An anode for a fluoride ion electrochemical cell is provided and includes a layered material of hard carbon, nitrogen doped graphite, boron doped graphite, TiS2, MoS2, TiSe2, MoSe2, VS2, VSe2, electrides of alkali earth metal nitrides, electrides of metal carbides, or combinations thereof. The anode may be included in a fluoride ion electrochemical cell, which additionally includes a cathode and a fluoride ion electrolyte arranged between the cathode and the anode. At least one of the cathode and the anode reversibly exchange the fluoride ions with the electrolyte during charging or discharging of the electrochemical cell.Type: GrantFiled: June 30, 2020Date of Patent: August 15, 2023Assignee: HONDA MOTOR CO., LTD.Inventors: Kaoru Omichi, Qingmin Xu, Christopher Brooks
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Patent number: 11710825Abstract: The invention generally relates to electrochemically active structures and methods of making thereof. More specifically, the invention relates to electrochemically active structure comprising a crystalline electride comprising a nitride or carbide of at least one of: an alkaline earth metal, a transition metal, a lanthanide metal, or a combination thereof, wherein the electride has a lattice capable of intercalating at least one ion, thereby releasing at least one electron into an external circuit; and wherein a change in lattice volume of the electride upon intercalating the at least one ion is less than about 40%. Further, methods of making these electrochemically active structures are disclosed. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.Type: GrantFiled: November 18, 2020Date of Patent: July 25, 2023Assignees: The University of North Carolina at Chapel Hill, Honda Motor Co., Ltd.Inventors: Scott C. Warren, Daniel L. Druffel, Jacob Pawlik, Adam H. Woomer, Qingmin Xu, Kaoru Omichi, Christopher Brooks
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Publication number: 20230135901Abstract: The present disclosure relates to fluoride ion batteries and structures of metal based electrode materials for various fluoride ion batteries. The structures of the metal based electrode materials comprise one or more shells or interfaces, enabling the electrodes to operate at room temperature with a liquid electrolyte.Type: ApplicationFiled: December 28, 2022Publication date: May 4, 2023Inventors: Qingmin XU, Christopher J. BROOKS, Kaoru OMICHI, Ryan K. MCKENNEY, Simon JONES, Victoria DAVIS, Stephen MUNOZ, Jeongmin KIM, Keith BILLINGS, Thomas MILLER, III, Robert H. GRUBBS, William WOLF, Nam Hawn CHOU
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Patent number: 11621438Abstract: The present disclosure is directed to fluoride (F) ion batteries and F shuttle batteries comprising an anode with a solid electrolyte interphase (SEI) layer, a cathode comprising a core shell structure, and a liquid fluoride battery electrolyte. According to some aspects, the components therein enable discharge and recharge at room-temperature.Type: GrantFiled: December 3, 2019Date of Patent: April 4, 2023Assignees: HONDA MOTOR CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGYInventors: Qingmin Xu, Christopher J. Brooks, Kaoru Omichi, Simon Jones, Victoria Davis, Stephen Munoz, Jeongmin Kim, Keith Billings, Thomas Miller, III, Robert H. Grubbs, William Wolf
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Patent number: 11581582Abstract: The present disclosure relates to fluoride ion batteries and structures of metal based electrode materials for various fluoride ion batteries. The structures of the metal based electrode materials comprise one or more shells or interfaces, enabling the electrodes to operate at room temperature with a liquid electrolyte.Type: GrantFiled: December 4, 2019Date of Patent: February 14, 2023Assignees: HONDA MOTOR CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGYInventors: Qingmin Xu, Christopher J. Brooks, Kaoru Omichi, Ryan K. McKenney, Simon Jones, Victoria Davis, Stephen Munoz, Jeongmin Kim, Keith Billings, Thomas Miller, III, Robert H. Grubbs, William Wolf, Nam Hawn Chou
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Publication number: 20220093918Abstract: The present disclosure relates to a method of making core-shell and yolk-shell nanoparticles, and to electrodes comprising the same. The core-shell and yolk-shell nanoparticles and electrodes comprising them are suitable for use in electrochemical cells, such as fluoride shuttle batteries. The shell may protect the metal core from oxidation, including in an electrochemical cell. In some embodiments, an electrochemically active structure includes a dimensionally changeable active material forming a particle that expands or contracts upon reaction with or release of fluoride ions. One or more particles are at least partially surrounded with a fluoride-conducting encapsulant and optionally one or more voids are formed between the active material and the encapsulant using sacrificial layers or selective etching. When the electrochemically active structures are used in secondary batteries, the presence of voids can accommodate dimensional changes of the active material.Type: ApplicationFiled: December 3, 2021Publication date: March 24, 2022Inventors: Nam Hawn CHOU, Kaoru OMICHI, Ryan MCKENNEY, Qingmin XU, Christopher BROOKS, Simon C. JONES, Isabelle M. DAROLLES, Hongjin TAN
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Patent number: 11251420Abstract: The present disclosure relates to a method of making core-shell and yolk-shell nanoparticles, and to electrodes comprising the same. The core-shell and yolk-shell nanoparticles and electrodes comprising them are suitable for use in electrochemical cells, such as fluoride shuttle batteries. The shell may protect the metal core from oxidation, including in an electrochemical cell. In some embodiments, an electrochemically active structure includes a dimensionally changeable active material forming a particle that expands or contracts upon reaction with or release of fluoride ions. One or more particles are at least partially surrounded with a fluoride-conducting encapsulant and optionally one or more voids are formed between the active material and the encapsulant using sacrificial layers or selective etching. When the electrochemically active structures are used in secondary batteries, the presence of voids can accommodate dimensional changes of the active material.Type: GrantFiled: December 15, 2017Date of Patent: February 15, 2022Assignees: HONDA MOTOR CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGYInventors: Nam Hawn Chou, Kaoru Omichi, Ryan McKenney, Qingmin Xu, Christopher Brooks, Simon C. Jones, Isabelle M. Darolles, Hongjin Tan
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Publication number: 20220037652Abstract: The present disclosure relates to a method of making core-shell and yolk-shell nanoparticles, and to electrodes comprising the same. The core-shell and yolk-shell nanoparticles and electrodes comprising them are suitable for use in electrochemical cells, such as fluoride shuttle batteries. The shell may protect the metal core from oxidation, including in an electrochemical cell. In some embodiments, an electrochemically active structure includes a dimensionally changeable active material forming a particle that expands or contracts upon reaction with or release of fluoride ions. One or more particles are at least partially surrounded with a fluoride-conducting encapsulant and optionally one or more voids are formed between the active material and the encapsulant using sacrificial layers or selective etching. When the electrochemically active structures are used in secondary batteries, the presence of voids can accommodate dimensional changes of the active material.Type: ApplicationFiled: October 15, 2021Publication date: February 3, 2022Inventors: Nam Hawn CHOU, Kaoru OMICHI, Ryan MCKENNEY, Qingmin XU, Christopher BROOKS, Simon C. JONES, Isabelle M. DAROLLES, Hongjin TAN
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Patent number: 11228026Abstract: The present disclosure relates to a method of making an electrochemically active material, which comprises metal nanostructures encapsulated in LaF3 shells. The electrochemically active material may be included in an electrode of an F-shuttle battery that includes a liquid electrolyte, which, optionally, allows the F-shuttle batteries to operate at room temperature.Type: GrantFiled: June 18, 2019Date of Patent: January 18, 2022Assignee: HONDA MOTOR CO., LTD.Inventors: Qingmin Xu, Christopher J. Brooks, Ryan K. McKenney
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Publication number: 20210367274Abstract: The present disclosure relates to a method of making core-shell and yolk-shell nanoparticles, and to electrodes comprising the same. The core-shell and yolk-shell nanoparticles and electrodes comprising them are suitable for use in electrochemical cells, such as fluoride shuttle batteries. The shell may protect the metal core from oxidation, including in an electrochemical cell. In some embodiments, an electrochemically active structure includes a dimensionally changeable active material forming a particle that expands or contracts upon reaction with or release of fluoride ions. One or more particles are at least partially surrounded with a fluoride-conducting encapsulant and optionally one or more voids are formed between the active material and the encapsulant using sacrificial layers or selective etching. The fluoride-conducting encapsulant may comprise one or more metals.Type: ApplicationFiled: August 5, 2021Publication date: November 25, 2021Inventors: Nam Hawn Chou, Kaoru Omichi, Ryan McKenney, Qingmin Xu, Christopher Brooks, Simon C. Jones, Isabelle M. Darolles, Hongjin Tan
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Patent number: 11177512Abstract: The present disclosure relates to a method of making core-shell and yolk-shell nanoparticles, and to electrodes comprising the same. The core-shell and yolk-shell nanoparticles and electrodes comprising them are suitable for use in electrochemical cells, such as fluoride shuttle batteries. The shell may protect the metal core from oxidation, including in an electrochemical cell. In some embodiments, an electrochemically active structure includes a dimensionally changeable active material forming a particle that expands or contracts upon reaction with or release of fluoride ions. One or more particles are at least partially surrounded with a fluoride-conducting encapsulant and optionally one or more voids are formed between the active material and the encapsulant using sacrificial layers or selective etching. The fluoride-conducting encapsulant may comprise one or more metals.Type: GrantFiled: June 20, 2018Date of Patent: November 16, 2021Assignees: HONDA MOTOR CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGYInventors: Nam Hawn Chou, Kaoru Omichi, Ryan McKenney, Qingmin Xu, Christopher Brooks, Simon C. Jones, Isabelle M. Darolles, Hongjin Tan
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Publication number: 20210151755Abstract: The invention generally relates to electrochemically active structures and methods of making thereof. More specifically, the invention relates to electrochemically active structure comprising a crystalline electride comprising a nitride or carbide of at least one of: an alkaline earth metal, a transition metal, a lanthanide metal, or a combination thereof, wherein the electride has a lattice capable of intercalating at least one ion, thereby releasing at least one electron into an external circuit; and wherein a change in lattice volume of the electride upon intercalating the at least one ion is less than about 40%. Further, methods of making these electrochemically active structures are disclosed. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.Type: ApplicationFiled: November 18, 2020Publication date: May 20, 2021Inventors: Scott C. Warren, Daniel L. Druffel, Jacob Pawlik, Adam H. Woomer, Qingmin Xu, Kaoru Omichi, Christopher Brooks
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Publication number: 20200335788Abstract: An anode for a fluoride ion electrochemical cell is provided and includes a layered material of hard carbon, nitrogen doped graphite, boron doped graphite, TiS2, MoS2, TiSe2, MoSe2, VS2, VSe2, electrides of alkali earth metal nitrides, electrides of metal carbides, or combinations thereof. The anode may be included in a fluoride ion electrochemical cell, which additionally includes a cathode and a fluoride ion electrolyte arranged between the cathode and the anode. At least one of the cathode and the anode reversibly exchange the fluoride ions with the electrolyte during charging or discharging of the electrochemical cell.Type: ApplicationFiled: June 30, 2020Publication date: October 22, 2020Inventors: Kaoru Omichi, Qingmin Xu, Christopher Brooks
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Patent number: 10727487Abstract: An anode for a fluoride ion electrochemical cell is provided and includes a layered material of hard carbon, nitrogen doped graphite, boron doped graphite, TiS2, MoS2, TiSe2, MoSe2, VS2, VSe2, electrides of alkali earth metal nitrides, electrides of metal carbides, or combinations thereof. The anode may be included in a fluoride ion electrochemical cell, which additionally includes a cathode and a fluoride ion electrolyte arranged between the cathode and the anode. At least one of the cathode and the anode reversibly exchange the fluoride ions with the electrolyte during charging or discharging of the electrochemical cell.Type: GrantFiled: October 4, 2017Date of Patent: July 28, 2020Assignee: Honda Motor Co., Ltd.Inventors: Kaoru Omichi, Qingmin Xu, Christopher Brooks
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Publication number: 20200185776Abstract: The present disclosure is directed to fluoride (F) ion batteries and F shuttle batteries comprising an anode with a solid electrolyte interphase (SEI) layer, a cathode comprising a core shell structure, and a liquid fluoride battery electrolyte. According to some aspects, the components therein enable discharge and recharge at room-temperature.Type: ApplicationFiled: December 3, 2019Publication date: June 11, 2020Inventors: Qingmin XU, Christopher J. BROOKS, Kaoru OMICHI, Simon JONES, Victoria DAVIS, Stephen MUNOZ, Jeongmin KIM, Keith BILLINGS, Thomas MILLER, III, Robert H. GRUBBS, William WOLF
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Publication number: 20200185722Abstract: An electrochemically active structure having a core and a shell at least partially surrounding the core. Also a method of making the electrochemically active structure as described herein as well as electrochemical cells comprising the electrochemically active structure as described herein.Type: ApplicationFiled: June 18, 2019Publication date: June 11, 2020Inventors: Qingmin XU, Christopher BROOKS, Ryan MCKENNEY, Thomas MILLER, III, Simon C. JONES, Steve MUNOZ, Victoria DAVIS
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Publication number: 20200108229Abstract: The present disclosure relates to fluoride ion batteries and structures of metal based electrode materials for various fluoride ion batteries. The structures of the metal based electrode materials comprise one or more shells or interfaces, enabling the electrodes to operate at room temperature with a liquid electrolyte.Type: ApplicationFiled: December 4, 2019Publication date: April 9, 2020Inventors: Qingmin XU, Christopher J. BROOKS, Kaoru OMICHI, Ryan K. MCKENNEY, Simon Jones, Victoria DAVIS, Stephen MUNOZ, Jeongmin KIM, Keith BILLINGS, Thomas MILLER, III, Robert H. GRUBBS, William WOLF
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Publication number: 20190393490Abstract: The present disclosure relates to a method of making an electrochemically active material, which comprises metal nanostructures encapsulated in LaF3 shells. The electrochemically active material may be included in an electrode of an F-shuttle battery that includes a liquid electrolyte, which, optionally, allows the F-shuttle batteries to operate at room temperature.Type: ApplicationFiled: June 18, 2019Publication date: December 26, 2019Inventors: Qingmin XU, Christopher J. Brooks, Ryan K. McKenney