Patents by Inventor Jiayu Simon Xue

Jiayu Simon Xue 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).

  • Patent number: 6878489
    Abstract: A primary lithium cell having an anode comprising lithium and a cathode comprising electrochemically active material selected from silver copper oxides having the formula AgCuO2 or Ag2Cu2O3 or mixtures thereof. The cathode can include a manganese dioxide in admixture with said silver copper oxides. The cell exhibits higher capacity and energy output than conventional lithium cells having an anode comprising lithium and cathode comprising manganese dioxide.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: April 12, 2005
    Assignee: The Gillette Company
    Inventors: Kirakodu S. Nanjundaswamy, Francis Wang, Jiayu Simon Xue, Fan Zhang, Ignacio Chi, Cahit Eylem
  • Patent number: 6759166
    Abstract: An alkaline cell having an anode comprising zinc, an alkaline electrolyte solution, a separator, and a cathode comprising silver copper oxide AgCuO2, or Ag2Cu2O3, desirably in admixture with MnO2. The cathode preferably also includes a graphitic carbon to improve electrical conductivity. The graphtic carbon can comprise natural or synthetic graphites including expanded graphites and graphitic carbon fibers. The carbon nanofibers desirably have a mean average diameter less than 500 nanometers.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: July 6, 2004
    Assignee: The Gillette Company
    Inventors: Francis Wang, Cahit Eylem, Jiayu Simon Xue, Kirakodu S. Nanjundaswamy, James Rozelle
  • Patent number: 6753109
    Abstract: An alkaline cell having an anode comprising zinc, an alkaline electrolyte solution, a separator, and a cathode comprising silver copper oxide selected from the compounds AgCuO2 Ag2Cu2O3 or any mixture thereof. The cathode preferably also includes a graphitic carbon to improve electrical conductivity. The graphitic carbon can comprise natural or synthetic graphites including expanded graphites and graphitic carbon fibers. The carbon nanofibers desirably have a mean average diameter less than 500 nanometers.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: June 22, 2004
    Assignee: The Gillette Company
    Inventors: Kirakodu S. Nanjundaswamy, Francis Wang, Jiayu Simon Xue, Cahit Eylem, James Rozelle
  • Publication number: 20030211392
    Abstract: A primary lithium cell having an anode comprising lithium and a cathode comprising electrochemically active material selected from silver copper oxides having the formula AgCuO2 or Ag2Cu2O3 or mixtures thereof. The cathode can include a manganese dioxide in admixture with said silver copper oxides. The cell exhibits higher capacity and energy output than conventional lithium cells having an anode comprising lithium and cathode comprising manganese dioxide.
    Type: Application
    Filed: May 6, 2002
    Publication date: November 13, 2003
    Inventors: Kirakodu S. Nanjundaswamy, Francis Wang, Jiayu Simon Xue, Fan Zhang, Ignacio Chi, Cahit Eylem
  • Publication number: 20030207174
    Abstract: An alkaline cell having an anode comprising zinc, an alkaline electrolyte solution, a separator, and a cathode comprising silver copper oxide selected from the compounds AgCuO2 Ag2Cu2O3 or any mixture thereof. The cathode preferably also includes a graphitic carbon to improve electrical conductivity. The graphitic carbon can comprise natural or synthetic graphites including expanded graphites and graphitic carbon fibers. The carbon nanofibers desirably have a mean average diameter less than 500 nanometers.
    Type: Application
    Filed: May 6, 2002
    Publication date: November 6, 2003
    Inventors: Kirakodu S. Nanjundaswamy, Francis Wang, Jiayu Simon Xue, Cahit Eylem, James Rozelle
  • Publication number: 20030207173
    Abstract: An alkaline cell having an anode comprising zinc, an alkaline electrolyte solution, a separator, and a cathode comprising silver copper oxide AgCuO2, or Ag2Cu2O3, desirably in admixture with MnO2. The cathode preferably also includes a graphitic carbon to improve electrical conductivity. The graphtic carbon can comprise natural or synthetic graphites including expanded graphites and graphitic carbon fibers. The carbon nanofibers desirably have a mean average diameter less than 500 nanometers.
    Type: Application
    Filed: May 6, 2002
    Publication date: November 6, 2003
    Inventors: Francis Wang, Cahit Eylem, Jiayu Simon Xue, Kirakodu S. Nanjundaswamy, James Rozelle
  • Publication number: 20030068556
    Abstract: Carbonaceous insertion compounds and methods for preparation are described wherein the compounds comprise a highly disordered, impurity free, hard pre-graphitic carbonaceous host. Carbonaceous insertion compounds can be prepared which have large reversible capacity for lithium yet low irreversible capacity and voltage hysteresis. Such insertion compounds can be prepared by simple pyrolysis of suitable epoxy, phenolic resin, or carbohydrate precursors at an appropriate temperature. These insertion compounds may be suitable for use as high capacity anodes in lithium ion batteries.
    Type: Application
    Filed: November 13, 2001
    Publication date: April 10, 2003
    Inventors: Jiayu Simon Xue, Alfred MacDonald Wilson, Jeffery Raymond Dahn, Yinghu Liu, Ulrich von Sacken, Qiming Zhong, Tao Zheng
  • Patent number: 6316144
    Abstract: Carbonaceous insertion compounds and methods for preparation are described wherein the compounds comprise a highly disordered, impurity free, hard pre-graphitic carbonaceous host. Carbonaceous insertion compounds can be prepared which have large reversible capacity for lithium yet low irreversible capacity and voltage hysteresis. Such insertion compounds can be prepared by simple pyrolysis of suitable epoxy, phenolic resin, or carbohydrate precursors at an appropriate temperature. These insertion compounds may be suitable for use as high capacity anodes in lithium ion batteries.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: November 13, 2001
    Assignee: Moli Energy (1990) Limited
    Inventors: Jiayu Simon Xue, Alfred MacDonald Wilson, Jeffrey Raymond Dahn, Yinghu Liu, Ulrich von Sacken, Qiming Zhong, Tao Zheng
  • Patent number: 5928812
    Abstract: Cells, especially solid state rechargeable lithium ion-containing cells having significantly improved cell shelf-life, cycle life and reduced impedance growth. A non-cathode active lithium compound containing one or more non-metallic elements, such as Li.sub.2 CO.sub.3 and Li.sub.2 B.sub.4 O.sub.7, substantially insoluble in the non-aqueous electrolyte of the cell, is dispersed throughout the cathode and is further dispersed within at least one of the anode and separator.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: July 27, 1999
    Assignee: UltraLife Batteries, Inc.
    Inventor: Jiayu Simon Xue
  • Patent number: 5698340
    Abstract: Carbonaceous insertion compounds and methods for preparation are described wherein the compounds comprise silicon and oxygen and are characterized by x-ray diffraction patterns that resemble that of amorphous silicon dioxide. The compounds can exhibit a large reversible capacity for lithium and can be prepared by simple pyrolysis of suitable polymer/s containing silicon, oxygen and carbon at an appropriate temperature. These insertion compounds may be suitable for use as high capacity anodes in lithium ion batteries.
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: December 16, 1997
    Assignee: Moli Energy (1990) Limited
    Inventors: Jiayu Simon Xue, Jeffery Raymond Dahn