Patents by Inventor Kallaiselvi Nallathamby

Kallaiselvi Nallathamby 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).

  • Anode active material for lithium secondary battery and manufacturing method thereof
    Patent number: 7749655
    Abstract: An anode active material for a lithium secondary battery, wherein a nitride compound containing silicon or metal such as copper, tin, germanium, indium and zinc is doped with second metal such as ferrum, cobalt, nickel and copper. To obtain the anode active material, a predetermined amount of metal nitride or silicon nitride is added to a second metal powder and then mixed uniformly. The mixture powder is filled into a container, and then a pressure is applied thereto to obtain a solid sample. The solid sample is heat-treated and pulverized into fine powder. The fine powder is heat-treated to obtain the metal nitride or the silicon nitride doped with the second metal.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: July 6, 2010
    Assignee: Korea Electro Technology Research Institute
    Inventors: Chil-Hoon Doh, Cheol-Wan Park, Seong-In Moon, Bong-Soo Jin, Mun-Soo Yun, Kallaiselvi Nallathamby
  • Anode active material for lithium secondary battery and manufacturing method thereof
    Publication number: 20050282070
    Abstract: An anode active material for a lithium secondary battery, wherein a nitride compound containing silicon or metal such as copper, tin, germanium, indium and zinc is doped with second metal such as ferrum, cobalt, nickel and copper. To obtain the anode active material, a predetermined amount of metal nitride or silicon nitride is added to a second metal powder and then mixed uniformly. The mixture powder is filled into a container, and then a pressure is applied thereto to obtain a solid sample. The solid sample is heat-treated and pulverized into fine powder. The fine powder is heat-treated to obtain the metal nitride or the silicon nitride doped with the second metal.
    Type: Application
    Filed: June 21, 2005
    Publication date: December 22, 2005
    Inventors: Chil-Hoon Doh, Cheol-Wan Park, Seong-In Moon, Bong-Soo Jin, Mun-Soo Yun, Kallaiselvi Nallathamby