Patents by Inventor ZHIJIA DU

ZHIJIA DU 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: 20220216454
    Abstract: A method of making an electrode includes the step of mixing active material particles, radiation curable resin precursors, and electrically conductive particles to create an electrode precursor mixture. The electrode precursor mixture is electrostatically sprayed onto a current collector to provide an electrode preform. The electrode preform is heated and calendered to melt the resin precursor such that the resin precursor surrounds the active particles and electrically conductive particles. Radiation is applied to the electrode preform sufficient to cure the radiation curable resin precursors into resin.
    Type: Application
    Filed: March 29, 2022
    Publication date: July 7, 2022
    Inventors: ZHIJIA DU, CHRISTOPHER JAMES JANKE, JIANLIN LI, DAVID L. WOOD, III, CLAUS DANIEL
  • Patent number: 11289689
    Abstract: A method of making an electrode includes the step of mixing active material particles, radiation curable resin precursors, and electrically conductive particles to create an electrode precursor mixture. The electrode precursor mixture is electrostatically sprayed onto a current collector to provide an electrode preform. The electrode preform is heated and calendered to melt the resin precursor such that the resin precursor surrounds the active particles and electrically conductive particles. Radiation is applied to the electrode preform sufficient to cure the radiation curable resin precursors into resin.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: March 29, 2022
    Assignee: UTBATTELE, LLC
    Inventors: Zhijia Du, Christopher James Janke, Jianlin Li, David L. Wood, III, Claus Daniel
  • Publication number: 20220037698
    Abstract: A lithium-ion battery comprising: (a) an anode; (b) a cathode; and (c) an electrolyte composition comprising lithium bis(fluorosulfonyl)imide (LiFSI) dissolved in the following solvent system containing at least the following solvent components: (i) ethylene carbonate and/or propylene carbonate in an amount of 5-70 wt % by weight of the solvent system; and (ii) at least one additional solvent selected from acyclic carbonate, acyclic or cyclic ester, and acyclic or cyclic ether solvents having a molecular weight of no more than 110 g/mol, wherein said at least one additional solvent is in an amount of 30-70 wt % by weight of the solvent system; wherein the wt % amounts for solvent components (i) and (ii), or any additional solvent components (if present) sum to 100 wt %, and wherein LiFSI is present in the solvent system in a concentration of 1.2 M to about 2 M.
    Type: Application
    Filed: December 16, 2019
    Publication date: February 3, 2022
    Inventors: Zhijia DU, Ilias BELHAROUAK, David L. WOOD III
  • Patent number: 10601027
    Abstract: A method of making an electrode includes the step of dispersing an active electrode material and a conductive additive in a solvent to create a mixed dispersion. The solvent has a surface tension less than 40 mN/m and an ozone forming potential of no more than 1.5 lbs. ozone/lb. solvent. A surface of a current collector is treated to raise the surface energy of the surface to at least the surface tension of the solvent or the mixed dispersion. The dispersed active electrode material and conductive additive are deposited on the current collector. The coated surface is heated to remove solvent from the coating.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: March 24, 2020
    Assignee: UT-BATTELLE, LLC
    Inventors: Zhijia Du, Claus Daniel, Jianlin Li, David L. Wood, III
  • Publication number: 20180323422
    Abstract: A method of making an electrode includes the step of mixing active material particles, radiation curable resin precursors, and electrically conductive particles to create an electrode precursor mixture. The electrode precursor mixture is electrostatically sprayed onto a current collector to provide an electrode preform. The electrode preform is heated and calendered to melt the resin precursor such that the resin precursor surrounds the active particles and electrically conductive particles. Radiation is applied to the electrode preform sufficient to cure the radiation curable resin precursors into resin.
    Type: Application
    Filed: April 30, 2018
    Publication date: November 8, 2018
    Inventors: ZHIJIA DU, CHRISTOPHER JAMES JANKE, JIANLIN LI, DAVID L. WOOD, III, CLAUS DANIEL
  • Publication number: 20180315992
    Abstract: A method of making an electrode includes the step of dispersing an active electrode material and a conductive additive in a solvent to create a mixed dispersion. The solvent has a surface tension less than 40 mN/m and an ozone forming potential of no more than 1.5 lbs. ozone/lb. solvent. A surface of a current collector is treated to raise the surface energy of the surface to at least the surface tension of the solvent or the mixed dispersion. The dispersed active electrode material and conductive additive are deposited on the current collector. The coated surface is heated to remove solvent from the coating.
    Type: Application
    Filed: April 27, 2018
    Publication date: November 1, 2018
    Inventors: ZHIJIA DU, CLAUS DANIEL, JIANLIN LI, DAVID L. WOOD, III