Patents by Inventor Xiaoguang Hao
Xiaoguang Hao 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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Publication number: 20240396004Abstract: This invention provides processes for prelithiating anode materials for lithium-ion batteries.Type: ApplicationFiled: September 20, 2022Publication date: November 28, 2024Applicant: Albemarle CorporationInventors: Mark J. Hintze, Y. M. Chen, Xiaoguang Hao, Yikai Wang
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Publication number: 20240351913Abstract: Methods for synthesizing crystalline Ni-rich cathode materials are disclosed. The Ni-rich cathode material may have a formula LiNiXMnyMzCo1-x-y-zO2, where M represents one or more dopant metals, x?0.6, 0.01?y<0.2, 0?z?0.05, and x+y+z?1.0. The methods are cost-effective, and include methods for solid-state, molten-salt, and flash-sintering syntheses.Type: ApplicationFiled: April 30, 2024Publication date: October 24, 2024Applicants: Battelle Memorial Institute, Albemarle CorporationInventors: Jie Xiao, Ran Yi, Yujing Bi, Job T. Rijssenbeek, Xiaoguang Hao, Subramanian Venkatachalam, Liu Luo
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Patent number: 12030789Abstract: Methods for synthesizing crystalline Ni-rich cathode materials are disclosed. The Ni-rich cathode material may have a formula LiNixMnyMzCo1-x-y-zO2, where M represents one or more dopant metals, x?0.6, 0.01?y<0.2, 0?z?0.05, and x+y+z?1.0. The methods are cost-effective, and include methods for solid-state, molten-salt, and flash-sintering syntheses.Type: GrantFiled: November 10, 2021Date of Patent: July 9, 2024Assignees: Battelle Memorial Institute, Albemarle CorporationInventors: Jie Xiao, Ran Yi, Yujing Bi, Job T. Rijssenbeek, Xiaoguang Hao, Subramanian Venkatachalam, Liu Luo
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Publication number: 20230077782Abstract: The color of an electrochromic stack in a tinted state may be modified to achieve a desired color target by utilizing various techniques alone or in combination. A first approach generally involves changing a coloration efficiency of a WOx electrochromic (EC) layer by lowering a sputter temperature to achieve a WOx microstructural change in the EC layer. A second approach generally involves utilizing a dopant (e.g., Mo, Nb, or V) to improve the neutrality of the tinted state of WOx (coloration efficiency changes). A third approach generally involves tailoring a thickness of the WOx layer to tune the color of the tinted stack.Type: ApplicationFiled: October 28, 2022Publication date: March 16, 2023Applicant: SAGE Electrochromics, Inc.Inventors: Wen Li, Nicolas Antoine Mercadier, Jean-Christophe Giron, Hannah Leung Ray, Xiaoguang Hao, Theo Chevallier, Chloe Bouard, Samuel Emile Dubrenat
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Patent number: 11327114Abstract: The fully-automatic closed-loop detection method includes: comparing a SCD file of a to-be-tested substation with a device-type data template file, so as to determine whether configuration information about the to-be-tested substation is correct; when the configuration information about the to-be-tested substation is correct, parsing the SCD file of the to-be-tested substation and generating a SSD topological diagram of the to-be-tested substation; and acquiring a testing item from a predetermined testing item library in accordance with the SSD topological diagram of the to-be-tested substation, generating a testing scheme for the to-be-tested substation, performing a testing operation and outputting a testing result.Type: GrantFiled: January 22, 2019Date of Patent: May 10, 2022Assignees: STATE GRID HEBEI ELECTRIC POWER RESEARCH INSTITUTE, STATE GRID CORPORATION OF CHINA, WUHAN KEMOV ELECTRIC CO., LTD, STATE GRID HEBEI ENERGY TECHNOLOGY SERVICE CO., LT DInventors: Peng Luo, Hui Fan, Jingchao Yang, Xiaoguang Hao, Yuhao Zhao, Lei He, Qun Rao
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Publication number: 20220112094Abstract: Methods for synthesizing crystalline Ni-rich cathode materials are disclosed. The Ni-rich cathode material may have a formula LiNixMnyMzCo1?x?y?zO2, where M represents one or more dopant metals, x?0.6, 0.01?y<0.2, 0?z?0.05, and x+y+z?1.0. The methods are cost-effective, and include methods for solid-state, molten-salt, and flash-sintering syntheses.Type: ApplicationFiled: November 10, 2021Publication date: April 14, 2022Applicant: Battelle Memorial InstituteInventors: Jie Xiao, Ran Yi, Yujing Bi, Job T. Rijssenbeek, Xiaoguang Hao, Subramanian Venkatachalam, Liu Luo
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Publication number: 20210271145Abstract: The color of an electrochromic stack in a tinted state may be modified to achieve a desired color target by utilizing various techniques alone or in combination. A first approach generally involves changing a coloration efficiency of a WOx electrochromic (EC) layer by lowering a sputter temperature to achieve a WOx microstructural change in the EC layer. A second approach generally involves utilizing a dopant (e.g., Mo, Nb, or V) to improve the neutrality of the tinted state of WOx (coloration efficiency changes). A third approach generally involves tailoring a thickness of the WOx layer to tune the color of the tinted stack.Type: ApplicationFiled: February 23, 2021Publication date: September 2, 2021Applicant: SAGE Electrochromics, Inc.Inventors: Wen Li, Nicolas Antoine Mercadier, Jean-Christophe Giron, Hannah Leung Ray, Xiaoguang Hao, Theo Chevallier, Chloe Bouard, Samuel Emile Dubrenat
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Patent number: 10573893Abstract: A method of making an electrode for a lithium ion battery includes providing a restricting media having a main body with opposing planar surfaces and depositing alloying particles on the opposing planar surfaces to form a restrained active particle layer. The restricting media can be a magnetic, electrochemically inactive material with an affinity for the alloying particles. The restricting media restrains expansion of the alloying particles during lithiation to a respective side of the restricting media. Electrodes include a current collector and an electrode material layer adjacent the current collector including the restricting media, the alloying particles deposited on the restricting media to form a restrained active particle layer, and a carbon material in contact with the alloying particles.Type: GrantFiled: December 22, 2015Date of Patent: February 25, 2020Assignee: Nissan North America, Inc.Inventors: Kenzo Oshihara, Xiaoguang Hao
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Patent number: 10319987Abstract: An active material layer for an electrode of a lithium ion battery has a first active material comprising silicon-based particles, a second active material comprising graphite and conduits between the first active material and the second active material, the conduits being a conductive material and providing area for expansion of the first active material due to lithiation while maintaining contact between the first active material and the second active material.Type: GrantFiled: December 21, 2015Date of Patent: June 11, 2019Assignee: Nissan North America, Inc.Inventors: Nilesh Dale, Xiaoguang Hao
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Publication number: 20190170822Abstract: The fully-automatic closed-loop detection method includes: comparing a SCD file of a to-be-tested substation with a device-type data template file, so as to determine whether configuration information about the to-be-tested substation is correct; when the configuration information about the to-be-tested substation is correct, parsing the SCD file of the to-be-tested substation and generating a SSD topological diagram of the to-be-tested substation; and acquiring a testing item from a predetermined testing item library in accordance with the SSD topological diagram of the to-be-tested substation, generating a testing scheme for the to-be-tested substation, performing a testing operation and outputting a testing result.Type: ApplicationFiled: January 22, 2019Publication date: June 6, 2019Applicants: STATE GRID HEBEI ELECTRIC POWER RESEARCH INSTITUTE, STATE GRID CORPORATION OF CHINA, WUHAN KEMOV ELECTRIC CO., LTD, STATE GRID HEBEI ENERGY TECHNOLOGY SERVICE CO., LT DInventors: Peng LUO, Hui FAN, Jingchao YANG, Xiaoguang HAO, Yuhao ZHAO, Lei HE, Qun RAO
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Patent number: 10199653Abstract: A battery has a three dimensional electrode including a current collector, electron directing members, each electron directing member having a perimeter edge attached to a surface of the current collector with a polymer binder, the electron directing members extending from the surface of the current collector and configured to direct electron flow along a layered direction of the electrode, an active material layer on the current collector and a separator. The electron directing members extend into the active material layer and having a free end in spaced relation to the separator.Type: GrantFiled: October 30, 2015Date of Patent: February 5, 2019Assignee: Nissan North America, Inc.Inventors: Kan Huang, Nilesh Dale, Xiaoguang Hao, Jessica Weber, Ying Liu
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Patent number: 10177371Abstract: Electrodes having at least one current correcting layer between the current collector and the separator drive electron flow in a direction perpendicular to the X-Y plane. Such an electrode includes a current collector, a first active material layer coated on the current collector, a first current correcting layer on the first active material layer opposite the current collector and a second active material layer on the first current correcting layer opposite the first active material layer. The first current correcting layer is a highly conductive, porous material that is not electrochemically active, the first current correcting layer being uniformly formed along an X-Y plane of the electrode.Type: GrantFiled: October 30, 2015Date of Patent: January 8, 2019Assignee: Nissan North America, Inc.Inventors: Xiaoguang Hao, Kenzo Oshihara
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Patent number: 10103386Abstract: Electrodes having three dimensional current collectors provide stability to the electrode structure, improved contact between active material and the current collector, and improved charge transfer. An electrode includes a three dimensional current collector including a substantially planar base and spring-like structures extending from the substantially planar base in spaced relation along the substantially planar base. Each spring-like structure has an attachment end attached to the substantially planar base and a free distal end. Active material is layered on the three dimensional current collector, the active material filled between the spring-like structures. The active material comprises alloying particles having a high specific capacity, wherein the spring-like structures deflect as the alloying particles expand in volume due to lithiation and return to an initial position as the alloying particles contract due to delithiation.Type: GrantFiled: December 15, 2015Date of Patent: October 16, 2018Assignee: Nissan North America, Inc.Inventor: Xiaoguang Hao
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Patent number: 9985275Abstract: A method of making a three dimensional electrode having an active material layered between a current collector and a separator includes growing nanotubes at predetermined points on a first sheet of electron directing material, wherein the electron directing material is highly conductive and chemically inert; aligning the nanotubes in a direction perpendicular to the first sheet; functionalizing a distal end of each nanotube; bonding a second sheet of electron directing material to the functionalized distal end of each nanotube; depositing magnetic particles along the second sheet; applying a magnetic field to the magnetic particles to rotate the first sheet, the second sheet and the nanotubes ninety degrees to form an electron directing structure; and attaching the electron directing structure on a surface of the current collector with a polymer binder. The electron directing structure is configured to direct electron flow along a layered direction of the three dimensional electrode.Type: GrantFiled: October 30, 2015Date of Patent: May 29, 2018Assignee: Nissan North America, Inc.Inventors: Kan Huang, Nilesh Dale, Xiaoguang Hao, Jessica Weber, Ying Liu
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Patent number: 9866056Abstract: Provided are methods and apparatus for charging a lithium sulfur (Li—S) battery. The Li—S battery has at least one unit cell comprising a lithium-containing anode and a sulfur-containing cathode with an electrolyte layer there between. One method provides controlled application of voltage pulses at the beginning of the charging process. An application period is initiated after a discharge cycle of the Li—S battery is complete. During the application period, voltage pulses are provided to the Li—S battery. The voltage pulses are less than a constant current charging voltage. Constant current charging is initiated after the application period has elapsed.Type: GrantFiled: March 31, 2016Date of Patent: January 9, 2018Assignee: Nissan North America, Inc.Inventors: Nagappan Ramaswamy, Peter Aurora, Gregory Dileo, Xiaoguang Hao, Taehee Han, Rameshwar Yadav, Ellazar Niangar, Kenzo Oshihara
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Patent number: 9837653Abstract: Electrochemical cells for lithium-sulfur batteries include a cathode comprising a sulfur containing material, an anode comprising lithium, a separator between the anode and cathode and an interlayer extending from a perimeter of the separator in a direction perpendicular to a stacking direction. The interlayer is configured to prevent polysulfide migration from the cathode to the anode.Type: GrantFiled: February 24, 2015Date of Patent: December 5, 2017Assignee: Nissan North America, Inc.Inventors: Xiaoguang Hao, Kenzo Oshihara
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Patent number: 9806337Abstract: An electrode comprises a current collector and a multi-layer active material formed on the current collector. The multi-layer active material includes at least one active composite unit having a first layer consisting essentially of a first carbon material having electrochemical activity and a binder and a second layer formed on the first layer comprising a high energy density material. A top layer is formed on the active composite unit consisting essentially of a second carbon material having electrochemical activity and a binder. The electrode provides even current distribution and compensates for particle volume expansion.Type: GrantFiled: January 15, 2015Date of Patent: October 31, 2017Assignee: Nissan North America, Inc.Inventors: Xiaoguang Hao, Kenzo Oshihara
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Patent number: 9780362Abstract: Electrodes made with a matrix selectively loaded with particular active particles provide uniform distribution and reduce issues due to particle expansion. The electrode has a current collector, a separator and a matrix having first pores having a first size and second pores having a second size, the first size being larger than the second size, the second pores being uniformly distributed throughout the matrix; first active particles deposited in the first pores, the first active particles having a first particle size smaller than the first pores and larger than the second pores; and second active particles deposited in the second pores, the second active particles having a second particle size smaller than the second pores.Type: GrantFiled: October 30, 2015Date of Patent: October 3, 2017Assignee: Nissan North America, Inc.Inventors: Xiaoguang Hao, Jessica Weber, Kenzo Oshihara, Ying Liu
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Publication number: 20170179467Abstract: An active material layer for an electrode of a lithium ion battery has a first active material comprising silicon-based particles, a second active material comprising graphite and conduits between the first active material and the second active material, the conduits being a conductive material and providing area for expansion of the first active material due to lithiation while maintaining contact between the first active material and the second active material.Type: ApplicationFiled: December 21, 2015Publication date: June 22, 2017Inventors: NILESH DALE, XIAOGUANG HAO
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Publication number: 20170179488Abstract: Electrodes incorporate an electrically activated matrix into which active material is provided. The active material includes alloying particles, which, as used herein, are active catalyst particles that have a high lithium storage capacity resulting in large volume expansions during lithiation. The electrically activated matrix is activated during charging and discharging of the battery, and when activated, maintains the electrode structure and stability by expanding and contracting with the volume expansion and contraction of the alloying particles during lithiation and delithiation, respectively. The electrically activated matrix also reduces cracking and pulverization of the alloying particles, maintaining electrical conductivity between active materials, thereby maintaining battery energy density through the life of the battery.Type: ApplicationFiled: December 22, 2015Publication date: June 22, 2017Inventors: XIAOGUANG HAO, KENZO OSHIHARA