Patents by Inventor Kyeu-Yoon Sheem

Kyeu-Yoon Sheem 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).

  • Publication number: 20110274979
    Abstract: A negative active material for a rechargeable lithium battery, a method of manufacturing the same, and a rechargeable lithium battery including the negative active material. The negative active material includes carbon particles having interplanar spacing (d002) ranging from about 0.34 nm to about 0.50 nm at a 002 plane, measured by X-ray diffraction using CuK?, and nitrogen on the surface of the carbon particles.
    Type: Application
    Filed: November 17, 2010
    Publication date: November 10, 2011
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Kyeu-Yoon SHEEM, Bok-Hyun KA, Da-Woon HAN
  • Publication number: 20110206998
    Abstract: A rechargeable lithium battery includes a positive electrode including a positive active material and an activated carbon, a negative electrode including a negative active material, and a lithium salt and a non-aqueous organic solvent, wherein the non-aqueous organic solvent includes about 30 volume % to about 90 volume % of propylene carbonate.
    Type: Application
    Filed: February 18, 2011
    Publication date: August 25, 2011
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Eui-Hwan SONG, Kyeu-Yoon SHEEM
  • Publication number: 20110189544
    Abstract: A negative active material for a rechargeable lithium battery that includes a core including a compound represented by the following Chemical Formula 1, and a carbon layer disposed on the core and including low crystalline carbon. LixTiyOz ??[Chemical Formula 1] where 0.1?x?4, 1?y?5, and 2?z?12.
    Type: Application
    Filed: August 10, 2010
    Publication date: August 4, 2011
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Jun-Sik KIM, Tae-Keun KIM, Kyeu-Yoon SHEEM, Eui-Hwan SONG, Jeong-Soon SHIN, Sung-Soo KIM
  • Publication number: 20110104568
    Abstract: A negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, the negative electrode including a current collector; and an active material layer formed on the current collector. The active material layer includes a solid solution of a metallic component, and an active material that is capable of forming a lithium-included compound, the metallic component selected from Cu, Ti, a Cu—X alloy, a Ti—X alloy, and a combination thereof. In the alloys, X is selected from an alkaline metal, an alkaline-earth metal, a Group 13 element excluding Ti, a Group 14 element, a transition element excluding Cu, a rare earth element, and a combination thereof.
    Type: Application
    Filed: October 8, 2010
    Publication date: May 5, 2011
    Inventors: Min-Seok Sung, Goo-Jin Jeong, Sang-Min Lee, Kyeu-Yoon Sheem, Yong-Mook Kang, Sung-Soo Kim
  • Publication number: 20110091770
    Abstract: A rechargeable battery that can have high energy density and high power density. The rechargeable battery includes: bipolar electrodes including a current collector, a sealing layer that is formed at the edge of the current collector, a first electrode active material layer that is inserted into a space in that is formed within the sealing layer, and a second electrode active material layer that is formed at the opposite side of the first electrode active material layer; and a separator that is disposed between the bipolar electrodes, wherein the sealing layer is bonded with the sealing layer of neighboring bipolar electrodes.
    Type: Application
    Filed: October 13, 2010
    Publication date: April 21, 2011
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Man-Seok HAN, Eui-Hwan SONG, Sumihito ISHIDA, Satoshi NARUKAWA, Jin-Kyu HONG, Jun-Sik KIM, Kyeu-Yoon SHEEM, Tae-Keun KIM, Mee-Young LEE
  • Publication number: 20110008670
    Abstract: A battery module for a rechargeable battery. The battery module has low contact resistance and includes: a plurality of electrode assemblies incorporating a positive electrode, a negative electrode and a separator disposed between the positive electrode and the negative electrode; a housing installed with the electrode assembly; and at least one conductive barrier inserted in the housing thereby dividing the space inside the housing, and electrically connecting the plurality of electrode assemblies.
    Type: Application
    Filed: May 28, 2010
    Publication date: January 13, 2011
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Man-Seok Han, Eui-Hwan Song, Sumihito Ishida, Satoshi Narukawa, Jin-Kyu Hong, Jun-Sik Kim, Kyeu-Yoon Sheem, Tae-keun Kim, Mee-Young Lee
  • Publication number: 20100178560
    Abstract: A negative active material for a rechargeable lithium battery, a method of preparing the negative active material, and a rechargeable lithium battery including the negative active material. The negative active material for a rechargeable lithium battery includes lithium titanium oxide (Li4Ti5O12) having a tap density of about 1.2 g/cc to 2.2 g/cc. The lithium titanium oxide is prepared by a mechano-chemical treatment and a heat treatment at a low temperature of about 650° C. to 775° C. According to the present invention, lithium titanium oxide having high crystallinity and tap density can be prepared through a simple and low-cost solid-phase method, e.g., a mechano-chemical treatment, and thus an electrode with excellent electrochemical reactivity and high energy density per volume can be fabricated.
    Type: Application
    Filed: August 24, 2009
    Publication date: July 15, 2010
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jun-Sik Kim, Eui-Hwan Song, Kyeu-Yoon Sheem, Yong-Chul Park, Jin-Kyu Hong, Man-Seok Han, Tae-Keun Kim
  • Publication number: 20100143774
    Abstract: A rechargeable battery includes an electrode assembly that includes a positive electrode, a negative electrode, a first bipolar electrode between the negative electrode and the positive electrode, and a second bipolar electrode between an outer surface of the electrode assembly and the positive electrode or between a center of the electrode assembly and the negative electrode, wherein the positive electrode, the negative electrode, and the first and second bipolar electrodes are stacked and wound together, and a lead electrically coupled with the electrode assembly. The electrode assembly may include separators between the positive electrode, the negative electrode, and the first and second bipolar electrodes.
    Type: Application
    Filed: December 8, 2009
    Publication date: June 10, 2010
    Inventors: Man-Seok Han, Eui-Hwan Song, Jin-Kyu Hong, Jun-Sik Kim, Yong-Chul Park, Kyeu-Yoon Sheem, Nam-Soon Choi, Tae-Keun Kim, Atsuo Omaru, Satoshi Narukawa
  • Publication number: 20090142665
    Abstract: An active material for a rechargeable lithium battery is provided with a non-carbon-based material on which nanofiber-shaped carbon having an oxygen-included functional group is grown. The negative active material for a rechargeable lithium battery has good conductivity and cycle life characteristics.
    Type: Application
    Filed: November 3, 2008
    Publication date: June 4, 2009
    Inventors: Kyeu-Yoon Sheem, Sang-Min Lee, Min-Seok Sung, Wan-Uk Choi, Young-Hee Lee