Patents by Inventor Joeng-Hun Ju

Joeng-Hun Ju 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).

  • CATHODE MATERIAL FOR LITHIUM SECONDARY BATTERIES AND LITHIUM SECONDARY BATTERY CONTAINING THE SAME
    Publication number: 20120107686
    Abstract: This invention relates to a positive electrode active material for a lithium secondary battery and a lithium secondary battery including the same, and particularly to a positive electrode active material for a lithium secondary battery, in which a lithium composite oxide having a composition of LiNi1-xMxO2 (wherein M represents one or a combination of two elements selected from the group consisting of Co, Al, Mn, Mg, Fe, Cu, Ti, Sn and Cr, and 0.96?x?1.05) is surface-modified using carbon or an organic compound, thereby achieving superior stability and improved high-rate capability compared to conventional positive electrode active materials, and to a lithium secondary battery including the same.
    Type: Application
    Filed: March 11, 2010
    Publication date: May 3, 2012
    Applicant: ECOPRO CO., LTD
    Inventors: Kwang -Sun Ryu, Suk-Joon Park, Jik-Soo Kim, Kyung Shin, Young-Min Chung, Joeng-Hun Ju, Yu-Rim Bak