Patents by Inventor Yu-Hua Kao

Yu-Hua Kao 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).

  • Publication number: 20240083769
    Abstract: A method comprises: providing a metal salt solution including nickel, cobalt, manganese, aluminum, or a combination thereof; combining the metal salt solution with a basic solution wherein the combination of the metal salt solution and the basic solution is maintained at a pH of no greater than 10 to form a metal hydroxide precursor. To form cathode active material the method further includes adding a lithium compound to the metal hydroxide precursor to form a metal hydroxide precursor mixture; and heat-treating the metal hydroxide precursor mixture to form the single-crystal cathode active material.
    Type: Application
    Filed: September 5, 2023
    Publication date: March 14, 2024
    Inventors: Yu-Hua Kao, Fangfu Zhang, Wesley Luc, Edward Matios, Gurudayal Singhal, Alan Nelson
  • Publication number: 20240059567
    Abstract: A method of making a cathode active material includes providing a first mixture including a mixed metal composition and phosphoric acid or a mixed metal composition and water. The mixed metal composition includes nickel, cobalt, manganese, or a combination thereof. A salt of iron, manganese, cobalt, or a combination thereof is added to adjust the stoichiometry of the mixed metal composition. The stoichiometrically-adjusted mixed metal composition in water can be contacted with a phosphorus-containing compound. The stoichiometrically-adjusted mixed metal phosphate is further contacted with a lithium-containing compound to provide the cathode active material having at least one phase having an olivine structure.
    Type: Application
    Filed: July 25, 2023
    Publication date: February 22, 2024
    Inventors: Yu-Hua Kao, Alan Nelson
  • Publication number: 20230357048
    Abstract: A method of making a cathode active material includes contacting a mixed metal composition with water to form a first solution. The mixed metal composition includes nickel, manganese, or nickel and manganese. A salt of nickel, manganese, or a combination thereof is added to the first solution to provide a second solution which can be further combined with a cosolvent to provide a third solution. The third solution can be further combined with a basic solution to provide a precipitate, which can be combined with a lithium compound and treated to provide the cathode active material having at least one phase having a spinel structure.
    Type: Application
    Filed: April 19, 2023
    Publication date: November 9, 2023
    Inventors: Alan Nelson, Yu-Hua Kao, Benjamin Malley, Fangfu Zhang, Edward Matios
  • Publication number: 20230352746
    Abstract: A carbon-based additive for negative active materials includes carbon nanostructures free of a fiber substrate, carbon nanostructures fused to a fiber substrate or any combination thereof. In many cases, the carbon-based additive further includes carbon black. The additive is used to prepare electrode compositions for lead acid batteries. Batteries that include such electrode compositions are characterized by improved dynamic charge acceptance and lead utilization, typically at acceptable water loss levels. Some of the batteries described herein exhibit a negligible memory effect.
    Type: Application
    Filed: August 20, 2021
    Publication date: November 2, 2023
    Inventors: Yu-Hua Kao, Agathagelos Kyrlidis, Persefoni E. Kechagia, Paolina Atanassova, Tushar Shah
  • Publication number: 20230268496
    Abstract: A method of making a cathode active material includes contacting a mixed metal composition with water to form a first solution. The mixed metal composition includes nickel, cobalt, manganese, aluminum, or a combination thereof, and greater than 0 to 2 weight percent, based on the total weight of the mixed metal composition, of a compound comprising Cu, Fe, Mg, Na, Ca, Zn, F, Si, Li, or a combination thereof. A salt of nickel, cobalt, manganese, aluminum, or a combination thereof is added to the first solution to provide a second solution, which can be further combined with a basic solution to provide a precipitate. The precipitate can be combined with a lithium compound and treated to provide the cathode active material.
    Type: Application
    Filed: February 9, 2023
    Publication date: August 24, 2023
    Inventors: Alan Nelson, Yu-Hua Kao, Benjamin Malley, Fangfu Zhang, Edward Matios
  • Patent number: 11205776
    Abstract: A method for forming lithium metal oxides comprised of Ni, Mn and Co useful for making lithium ion batteries comprises providing precursor particulates of Ni and Co that are of a particular size that allows the formation of improved lithium metal oxides. The method allows the formation of lithium metal oxides having improved safety while retaining good capacity and rate capability. In particular, the method allows for the formation of lithium metal oxide where the primary particle surface Mn/Ni ratio is greater than the bulk Mn/Ni. Likewise the method allows the formation of lithium metal oxides with secondary particles having much higher densities allowing for higher cathode densities and battery capacities while retaining good capacity and rate performance.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: December 21, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Yu-Hua Kao, Murali G. Theivanayagam, Jui-Ching Lin, Jianxin Ma, Liang Chen, Michael Lowe, Hideaki Maeda, Ing-Feng Hu
  • Publication number: 20190136397
    Abstract: An electroplated copper metal having certain grain misorientations between adjacent grains at a <111> crystal plane direction provides for improved properties of the copper. A method of electroplating the copper metal on substrates, including dielectric substrates, is also disclosed.
    Type: Application
    Filed: October 22, 2018
    Publication date: May 9, 2019
    Inventor: Yu Hua Kao
  • Publication number: 20170256789
    Abstract: A lithium metal oxide powder comprises secondary particles comprised of agglomerated primary lithium metal oxide particles bonded together, the primary lithium metal oxide particles being comprised of Li, Ni, Mn, Co and oxygen and having a median primary particle size of 0.1 micrometer to 3 micrometers, wherein the secondary particles have a porosity that is at least about 10%. The lithium metal oxide powders are useful make lithium ion battery having improved performance particularly when the secondary particles deagglomerate when forming the cathode used in the lithium ion battery.
    Type: Application
    Filed: September 21, 2015
    Publication date: September 7, 2017
    Inventors: Yu-Hua Kao, Ting Han, Ing-Feng Hu, Hideaki Maeda
  • Publication number: 20170145577
    Abstract: Thin film substrates are electroplated with copper from low internal stress, high ductility acid copper electroplating baths. During the copper electroplating process the thin film substrates can warp or bow. To address the problem of warping or bowing during copper electroplating the thin film substrate is held by a securing means which inhibits the thin film substrate from excessive activity.
    Type: Application
    Filed: October 17, 2016
    Publication date: May 25, 2017
    Inventors: Yu Hua Kao, Lingyun Wei, Luis Gomez, Mark Lefebvre
  • Publication number: 20170084919
    Abstract: A method for forming lithium metal oxides comprised of Ni, Mn and Co useful for making lithium ion batteries comprises providing precursor particulates of Ni and Co that are of a particular size that allows the formation of improved lithium metal oxides. The method allows the formation of lithium metal oxides having improved safety while retaining good capacity and rate capability. In particular, the method allows for the formation of lithium metal oxide where the primary particle surface Mn/Ni ratio is greater than the bulk Mn/Ni. Likewise the method allows the formation of lithium metal oxides with secondary particles having much higher densities allowing for higher cathode densities and battery capacities while retaining good capacity and rate performance.
    Type: Application
    Filed: May 14, 2015
    Publication date: March 23, 2017
    Inventors: Yu-Hua Kao, Murali G. Theivanayagam, Jui-Ching Lin, Jianxin Ma, Liang Chen, Michael Lowe, Hideaki Maeda, Ing-Feng Hu
  • Publication number: 20170067173
    Abstract: Acid copper electroplating baths provide improved low internal stress copper deposits with good ductility. The acid copper electroplating baths include one or more polyallylamines and certain sulfur containing accelerators. The acid copper electroplating baths may be used to electroplate thin films on relatively thin substrates to provide thin film copper deposits having low internal stress and high ductility.
    Type: Application
    Filed: August 16, 2016
    Publication date: March 9, 2017
    Inventors: Lingyun Wei, Yu Hua Kao, Rebecca Hazebrouck, Robert Corona, Mark Lefebvre
  • Patent number: 9509019
    Abstract: Electroactive compositions are disclosed for use in lithium ion battery electrodes. The compositions, such as multifunctional mixed metal olivines, provide an electrochemical cell having a plurality of open circuit voltages at different states of charge. The compositions afford improved state-of-charge monitoring, overcharge protection and/or overdischarge protection for lithium ion batteries.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: November 29, 2016
    Assignee: A123 Systems LLC
    Inventors: Yet-Ming Chiang, Andrew C. Chu, Young-Il Jang, Nonglak Meethong, Yu-Hua Kao, Gilbert N. Riley, Jr., Anthony E. Pullen, Karen E. Thomas-Alyea
  • Publication number: 20160312372
    Abstract: Acid copper electroplating baths provide improved low internal stress copper deposits with good ductility. The acid copper electroplating baths include one or more branched polyalkylenimines and one or more accelerators. The acid copper electroplating baths may be used to electroplate thin films on relatively thin substrates to provide thin film copper deposits having low internal stress and high ductility.
    Type: Application
    Filed: April 27, 2015
    Publication date: October 27, 2016
    Inventors: Lingyun WEI, Rebecca HAZEBROUCK, Bryan LIEB, Yu-Hua KAO, Mark LEFEBVRE, Robert A. CORONA
  • Publication number: 20150372303
    Abstract: Olivine lithium manganese iron phosphate is made in a coprecipitation process from a water/alcoholic cosolvent mixture. The LMFP particles so obtained exhibit surprisingly high electronic conductivities, which in turn leads to other advantages such as high energy and power densities and excellent cycling performance.
    Type: Application
    Filed: March 4, 2013
    Publication date: December 24, 2015
    Inventors: Yu-Hua Kao, Stacie L. Santhany, Murali G. Theivanayagam, Xindi Yu, Lingbo Zhu, Ing-Feng Hu, Michael M. Oken, Robin P. Ziebarth
  • Publication number: 20150349343
    Abstract: An inexpensive method for making lithium transition metal olivine particles that have high specific capacities is disclosed. The method includes the steps of: a) combining precursor materials including at least one source of lithium ions, at least one source of transition metal ions, at least one source of HxP04 ions where x is 0-2 and at least one source of carbonate, hydrogen carbonate, formate and/or acetate ions in a mixture of water and a liquid cosolvent which is miscible with water at the relative proportions of water and cosolvent that are present and which liquid cosolvent has a boiling temperature of at least 130° C.; wherein the mole ratio of lithium ions to HxP04 ions is from 0.9:1 to 1.2:1, and a lithium transition metal phosphate and at least one of carbonic acid, formic acid or acetic acid are formed, b) heating the resulting mixture at a temperature of up to 120° C.
    Type: Application
    Filed: June 24, 2013
    Publication date: December 3, 2015
    Inventors: Yu-Hua Kao, Towhid Hasan, Robin P. Zeibarth, Xindi Yu, Murali G. Theivanayagam, Lingbo Zhu, Stacie L. Santhany, Jui-Ching Lin, Ing-Feng HU
  • Publication number: 20150303473
    Abstract: Olivine lithium transition metal phosphate cathode materials are made in a microwave-assisted process by combining precursors in a mixture of water and an alcoholic cosolvent, then exposing the precursors to microwave radiation 5 to heat them under superatmospheric pressure. This process allows rapid synthesis of the cathode materials, and produces cathode materials that have high specific capacities.
    Type: Application
    Filed: March 4, 2013
    Publication date: October 22, 2015
    Inventors: Murali G. Theivanayagam, Ing-Feng Hu, Yu-Hua Kao, Lingbo Zhu, Stacie L. Santhany, Ying Shi, Jui-Ching Lin, Towhid Hasan, Robin P. Ziebarth, Xindi Yu, Michael M. Oken
  • Publication number: 20120231308
    Abstract: Electroactive compositions are disclosed for use in lithium ion battery electrodes. The compositions, such as multifunctional mixed metal olivines, provide an electrochemical cell having a plurality of open circuit voltages at different states of charge. The compositions afford improved state-of-charge monitoring, overcharge protection and/or overdischarge protection for lithium ion batteries.
    Type: Application
    Filed: May 29, 2012
    Publication date: September 13, 2012
    Inventors: Yet-Ming CHIANG, Andrew C. CHU, Young-II JANG, Nonglak MEETHONG, Yu-Hua KAO, Gilbert N. RILEY, JR., Anthony E. PULLEN, Karen E. THOMAS-ALYEA
  • Patent number: 8187735
    Abstract: Electroactive compositions are disclosed for use in lithium ion battery electrodes. The compositions, such as multifunctional mixed metal olivines, provide an electrochemical cell having a plurality of open circuit voltages at different states of charge. The compositions afford improved state-of-charge monitoring, overcharge protection and/or overdischarge protection for lithium ion batteries.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: May 29, 2012
    Assignee: A123 Systems, Inc.
    Inventors: Yet-Ming Chiang, Andrew C. Chu, Young-Il Jang, Nonglak Meethong, Yu-Hua Kao, Gilbert N. Riley, Jr., Anthony E. Pullen, Karen E. Thomas-Alyea
  • Publication number: 20110094045
    Abstract: The present invention relates to the manufacture of a novel environmental-protection shoe tree, and particularly to the manufacture of an environmental-protection shoe tree made by molding a primary material of rice husk, in which fibrous plant materials, such as rice husks and wheat husks are sieved and pulverized and are mixed with natural rubber and additives, followed by mechanical mixing to carry out a uniform mixing operation for forming an environmental-protection material block, which is then processed by a rolling machine to uniformly mix with a crosslinking agent and form an environmental-protection material plate, which is then cut into a desired size and put in a mold to be heated and pressurized by a hydraulic machine for performing molding to eventually form a final product of a shoe tree showing characteristics of environmental protection.
    Type: Application
    Filed: October 27, 2009
    Publication date: April 28, 2011
    Inventor: YU-HUA KAO
  • Publication number: 20090123813
    Abstract: Electroactive compositions are disclosed for use in lithium ion battery electrodes. The compositions, such as multifunctional mixed metal olivines, provide an electrochemical cell having a plurality of open circuit voltages at different states of charge. The compositions afford improved state-of-charge monitoring, overcharge protection and/or overdischarge protection for lithium ion batteries.
    Type: Application
    Filed: July 11, 2008
    Publication date: May 14, 2009
    Applicant: A123 SYSTEMS, INC.
    Inventors: Yet-Ming CHIANG, Andrew C. CHU, Young-Il JANG, Nonglak MEETHONG, Yu-Hua KAO, Gilbert N. RILEY, JR., Anthony E. PULLEN, Karen E. THOMAS-ALYEA