Patents by Inventor Dong Gui Choi

Dong Gui Choi 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).

  • METHOD FOR MANUFACTURING ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY MANUFACTURED THEREBY AND LITHIUM SECONDARY BATTERY USING SAME
    Publication number: 20130183583
    Abstract: The present invention provides a method for manufacturing an anode active material for a lithium secondary battery comprising the following steps of: a) simultaneously mixing a first metallic salt aqueous solution including nickel, cobalt, manganese and optionally a transition metal, a chelating agent, and a basic aqueous solution in a reactor, and mixing with a lithium raw material and calcining to manufacture a center part including the compound of following Chemical Formula 1: Lix1[Ni1?y1?z1?w1Coy1Mnz1Mw1]O2??Chemical Formula 1 (wherein, 0.9?x1?1.3, 0.1?y1?0.3, 0.0?z1?0.3, 0?w1?0.
    Type: Application
    Filed: July 22, 2011
    Publication date: July 18, 2013
    Applicant: ECOPRO CO LTD
    Inventors: Jik Soo Kim, Moon Ho Choi, Jong Ryeol Yu, Dong Gui Choi