Patents by Inventor Sam-Jin Park

Sam-Jin Park 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).

  • SEPARATOR AND METHOD OF MANUFACTURING THE SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME
    Publication number: 20130302661
    Abstract: A separator for a lithium battery includes a porous substrate and a coating layer on at least one side of the porous substrate, the coating layer having a first side adjacent to the porous substrate, and a second side opposite the first side. The coating layer may include an inorganic compound and a polymer binder, and an amount of the polymer binder at the second side is greater than an amount of the polymer binder at the first side. A rechargeable lithium battery includes the separator.
    Type: Application
    Filed: November 21, 2012
    Publication date: November 14, 2013
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Ihn Kim, Sam-Jin Park, Jung-Ock Yeou, Kwi-Seok Choi
  • NEGATIVE ACTIVE MATERIAL AND LITHIUM BATTERY CONTAINING THE SAME
    Publication number: 20130252110
    Abstract: A negative active material includes a silicon-based particle and a crystalline carbonaceous material, the crystalline carbonaceous material including a graphite particle and a carbonaceous nano-sheet.
    Type: Application
    Filed: February 5, 2013
    Publication date: September 26, 2013
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Sam-Jin PARK, Ki-Jun KIM, Na-Ri SEO, Ihn KIM, Dong-Ho SON, Myoung-Sun KIM, Young-Su KIM
  • SEPARATOR AND RECHARGEABLE LITHIUM BATTERY
    Publication number: 20130252066
    Abstract: In one aspect, a separator that includes a porous substrate; and a coating layer including an inorganic compound-organic/inorganic binder, and a binder polymer, and a rechargeable lithium battery including the separator is provided.
    Type: Application
    Filed: August 31, 2012
    Publication date: September 26, 2013
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jung-Ock Yeou, Ihn Kim, Sam-Jin Park, Kwi-Seok Choi
  • NEGATIVE ACTIVE MATERIAL COMPOSITION, METHOD OF PREPARING NEGATIVE ELECTRODE PLATE BY USING NEGATIVE ACTIVE MATERIAL COMPOSITION, AND LITHIUM SECONDARY BATTERY MANUFACTURED BY USING THE NEGATIVE ACTIVE MATERIAL COMPOSITION
    Publication number: 20120177989
    Abstract: A negative active material composition includes a negative active material, a binder, and a solvent, in which the solvent includes an aqueous solvent and an organic solvent. A method of preparing a negative electrode plate uses the negative active material composition. A lithium battery is manufactured using the negative active material composition, and has good lifetime characteristics due to the formation of pores in the electrode plate.
    Type: Application
    Filed: May 16, 2011
    Publication date: July 12, 2012
    Inventors: Dong-Ho Son, Ki-Jun Kim, Ihn Kim, Young-Su Kim, Sam-Jin Park, Na-Ri Seo, Myoung-Sun Kim
  • Electrode Assembly and Rechargeable Battery Using Same
    Publication number: 20110305944
    Abstract: An electrode assembly according to an exemplary embodiment of the present invention comprises: a first electrode which includes a first electrode current collector and a first electrode active material layer formed on the first electrode current collector; a second electrode which includes a second electrode current collector and a second electrode active material layer formed on the second electrode current collector; and a separator disposed between the first electrode and the second electrode. A supporting portion is formed of a groove or a protrusion at an edge of the first electrode current collector, and a combination portion is combined with the supporting portion on the first electrode active material layer.
    Type: Application
    Filed: November 23, 2010
    Publication date: December 15, 2011
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Na-Ri Seo, Ki-Jun Kim, Ihn Kim, Sam-Jin Park, Seung-Hun Han, Hye-Sun Jeong