Patents by Inventor Seok-soo Lee

Seok-soo Lee 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).

  • Patent number: 8685572
    Abstract: An organic electrolyte including a lithium salt; an organic solvent; and a flavone-based or flavanon-based compound, and a lithium battery including the organic electrolyte.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: April 1, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Dong-joon Lee, Young-gyoon Ryu, Seok-soo Lee, Dong-min Im
  • Patent number: 8632917
    Abstract: An organic electrolyte solution includes a lithium salt; an organic solvent including a high permittivity solvent and a low boiling solvent; and a vinyl-based compound represented by Formula 1 below, wherein m and n are each independently integers of 1 to 10; X1, X2, and X3 each independently represent O, S, or NR9; and R1, R2, R3, R4, R5, R6, R7, R8, and R9 are represented in the detailed description. The organic electrolyte solution of the present invention and a lithium battery using the same suppress degradation of an electrolyte, providing improved cycle properties and life span thereof.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: January 21, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seok-soo Lee, Young-gyonn Ryu, Seung-sik Hwang, Dong-joon Lee, Boris A. Trofimov
  • Patent number: 8568920
    Abstract: An organic electrolytic solution including a lithium salt, an organic solvent, and a linear or cyclic polymerizable monomer that is negatively charged due to localization of electrons on the monomer, and a lithium battery employing the same. Since the organic electrolytic solution prevents decomposition of an electrolyte and elution from or precipitation of metal ions, the lithium battery employing the organic electrolytic solution has excellent lifetime characteristics and cycle characteristics.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: October 29, 2013
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Dong-joon Lee, Young-gyoon Ryu, Dong-min Im, Seok-soo Lee
  • Patent number: 8512896
    Abstract: An organic electrolytic solution and a lithium battery employing the same are provided. The organic electrolytic solution includes a lithium salt, an organic solvent containing a first solvent having a high dielectric constant and a second solvent having a low boiling point, and a surfactant including a hydrophobic portion having an aromatic group. The organic electrolytic solution effectively prevents the electrolytic solution from contacting the anode, thereby suppressing side reactions on the anode surface and improving discharge capacity, charge/discharge efficiency, lifespan, and battery reliability.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: August 20, 2013
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-gyoon Ryu, Jae-young Choi, Eun-sung Lee, Seok-soo Lee, Do-yun Kim, Sang-hoon Song
  • Patent number: 8435674
    Abstract: A lithium battery includes a cathode; an anode; and an organic electrolyte solution. The cathode includes cathode active materials that discharge oxygen during charging and discharging. The organic electrolyte solution includes: lithium salt; an organic solvent, and at least one selected from the group consisting of compounds represented by Formula 1 and Formula 2 below: P(R1)a(OR2)b??Formula 1 O?P(R1)a(OR2)b.??Formula 2 R1 is each independently a substituted or unsubstituted C1-C20 alkyl group or a substituted or unsubstituted C6-C30 aryl group. R2 is each independently a substituted or unsubstituted C1-C20 alkyl group or a substituted or unsubstituted C6-C30 aryl group. a and b are each independently in a range of about 0 to about 3 and a+b=3.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: May 7, 2013
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Dong-joon Lee, Dong-min Im, Young-gyoon Ryu, Seok-soo Lee
  • Patent number: 8372548
    Abstract: An organic electrolytic solution including: a lithium salt; an organic solvent; and a compound represented by Formula 1 below, and a lithium battery including the organic electrolytic solution. In Formula 1: R1, R2, and R3 may be each independently a hydrogen atom, a C1 to C10 alkyl group, a C6 to C10 cycloalkyl group, a C6 to C10 aryl group, a C2 to C10 alkenyl group, or a C2 to C10 alkynyl group; X is C (R2) or nitrogen; and n is an integer ranging from 1 to 5.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: February 12, 2013
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seok-soo Lee, Young-gyoon Ryu, Dong-joon Lee
  • Publication number: 20120171563
    Abstract: An electrolyte for a lithium secondary battery, which includes a lithium salt, a nonaqueous organic solvent and at least one additive selected from the group consisting of vitamin G (vitamin B2, riboflavin), vitamin B3 (niacinamide), vitamin B4 (adenine), vitamin B5 (pantothenic acid), vitamin H (vitamin B7, biotin), vitamin M (vitamin B9, folic acid), vitamin BX (4-aminobenzoic acid), vitamin D2 (ergocalciferol), vitamin D3 (cholecalciferol), vitamin K1 (phylloquinone), ascorbyl palmitate, and sodium ascorbate.
    Type: Application
    Filed: December 28, 2011
    Publication date: July 5, 2012
    Applicant: Samsung Electronics Co. Ltd.
    Inventors: Yoon-sok Kang, Seok-soo Lee, Won-chang Choi, Jin-hwan Park, Mi-jeong Song
  • Publication number: 20120171577
    Abstract: An electrolytic solution including: a magnesium salt; a non-aqueous organic solvent; and an anion receptor, wherein the anion receptor comprises at least one compound selected from the group consisting of compounds represented by Formulae 1 and 2 below: where A, m, p1, P2, P3, q1, RA, Ra, R1 through R6, and Ry are the same as described in the detailed description section.
    Type: Application
    Filed: June 10, 2011
    Publication date: July 5, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Young-gyoon Ryu, Sang-ho Park, Myung-dong Cho, Young-min Choi, Seok-soo Lee
  • Publication number: 20120164543
    Abstract: An organic electrolyte solution includes a lithium salt; an organic solvent including a high permittivity solvent and a low boiling solvent; and a vinyl-based compound represented by Formula 1 below, wherein m and n are each independently integers of 1 to 10; X1, X2, and X3 each independently represent O, S, or NR9; and R1, R2, R3, R4, R5, R6, R7, R8, and R9 are represented in the detailed description. The organic electrolyte solution of the present invention and a lithium battery using the same suppress degradation of an electrolyte, providing improved cycle properties and life span thereof.
    Type: Application
    Filed: February 29, 2012
    Publication date: June 28, 2012
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Seok-soo Lee, Young-gyonn Ryu, Seung-sik Hwang, Dong-joon Lee, Boris A. Trofimov
  • Publication number: 20120121990
    Abstract: An electrolyte for a lithium secondary battery, the electrolyte comprising: a lithium salt, a non-aqueous organic solvent, and an additive represented by Formula 1 below: wherein R1, R2, R3, and R4 are the same as defined in the detailed description.
    Type: Application
    Filed: June 29, 2011
    Publication date: May 17, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yoon-sok KANG, Seok-soo Lee, Young-gyoon Ryu, Jin-hwan Park, Mi-jeong Song
  • Publication number: 20120100439
    Abstract: An electrolyte solution for a secondary lithium battery, the electrolyte solution including: a lithium salt, a non-aqueous organic solvent, and a phenanthroline-based compound having a polar substituent. The electrolyte solution enables production of a secondary lithium battery having good high-temperature lifetime characteristics and good high-temperature preservation characteristics.
    Type: Application
    Filed: May 27, 2011
    Publication date: April 26, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yoon-sok Kang, Seok-soo Lee, Jae-gu Yoon, Jin-hwan Park, Mi-jeong Song
  • Publication number: 20120100424
    Abstract: Cathode active materials, and cathodes and magnesium batteries including the cathode active materials. The cathode active materials, and cathodes and magnesium batteries include a metal sulfide-based nanosheet.
    Type: Application
    Filed: May 31, 2011
    Publication date: April 26, 2012
    Applicants: Samsung Electro-Mechanics Co., Ltd, Samsung Electronics Co., Ltd.
    Inventors: Seok-soo LEE, Young-gyoon Ryu, Jung-wook Seo, Young-min Choi
  • Patent number: 8163426
    Abstract: An additive for an electrolyte of a lithium secondary battery, the additive including a polysiloxane-based compound represented by Formula 1 below: In formula 1 R1, R2, R3, A1, A2, l, m, n, o and p are as described in the detailed description of the present invention.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: April 24, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seung-sik Hwang, Young-gyoon Ryu, Seok-soo Lee, Dong-joon Lee
  • Patent number: 8148007
    Abstract: An organic electrolyte solution includes a lithium salt; an organic solvent including a high permittivity solvent and a low boiling solvent; and a vinyl-based compound represented by Formula 1 below, wherein m and n are each independently integers of 1 to 10; X1, X2, and X3 each independently represent O, S, or NR9; and R1, R2, R3, R4, R5, R6, R7, R8, and R9 are represented in the detailed description. The organic electrolyte solution of the present invention and a lithium battery using the same suppress degradation of an electrolyte, providing improved cycle properties and life span thereof.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: April 3, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seok-soo Lee, Young-gyonn Ryu, Seung-sik Hwang, Dong-joon Lee, Boris A. Trofimov
  • Patent number: 8119038
    Abstract: An organic electrolytic solution includes a lithium salt; an organic solvent containing a high dielectric constant solvent and/or a low boiling point solvent; and a glycidyl ether compound represented by Formula 1: where, n, R1, R2, R3, R4, R5, R6 and A are described in the detailed description. In conventional organic electrolytic solutions, irreversible capacity is increased due to decomposition of a polar solvent. A lithium battery employing the organic electrolytic solution has excellent charge/discharge characteristics by inhibiting cracks of a negative electrode active material which occur during charging and discharging of the battery. Therefore, the lithium battery can have high stability, reliability and charge/discharge efficiency.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: February 21, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seok-soo Lee, Young-gyoon Ryu, Dong-joon Lee
  • Patent number: 8101297
    Abstract: An organic electrolytic solution including a lithium salt; an organic solvent including a high dielectric solvent and a low boiling point solvent; and an additive compound containing an electron withdrawing group and hydrocarbon-based substituents. A lithium battery using the organic electrolytic solution can have improved cycle characteristics and cycle life through preventing decomposition of the electrolyte.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: January 24, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seok-soo Lee, Dong-joon Lee, Young-gyoon Ryu
  • Patent number: 8048573
    Abstract: Organic electrolytic solutions and lithium batteries using the organic electrolytic solutions are provided. One organic electrolytic solution includes a lithium salt, a mixed organic solvent consisting of a high-dielectric constant solvent and a low-boiling point solvent, and a compound represented by Formula 1 or 2 as an additive. The organic electrolytic solution and the lithium battery using the organic electrolytic solution may inhibit the reductive cleavage reaction of a polar solvent, thereby increasing capacity retention of the battery, and improving charge-discharge efficiency and battery lifetime.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: November 1, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seok-soo Lee, Young-gyoon Ryu, Han-su Kim
  • Patent number: 8034489
    Abstract: Organic electrolyte solutions and lithium batteries using the same are provided. The organic electrolyte solutions use a silane compound that prevents crack formation caused by volumetric changes in the anode active material during battery charging/discharging. This improves charge/discharge characteristics, thereby also improving stability, reliability, and charge/discharge efficiency of the battery.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: October 11, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-gyoon Ryu, Sang-kook Mah, Jae-young Choi, Seok-soo Lee
  • Patent number: 8034491
    Abstract: An organic electrolytic solution is provided. The electrolytic solution comprises a lithium salt, an organic solvent comprising a first solvent having a high dielectric constant and a second solvent having a low boiling point, and a surfactant having a hydrophilic segment with two ends, each end being connected to a hydrophobic segment. The organic electrolytic solution effectively prevents the electrolytic solution from contacting the anode of the lithium battery to thereby suppress a side reaction on the surface of the anode. This enhances charge/discharge efficiency, lifespan and reliability of the battery.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: October 11, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-gyoon Ryu, Eun-sung Lee, Jae-young Choi, Seok-soo Lee, Su-jin Kim
  • Patent number: 8026006
    Abstract: An organic electrolyte solution and a lithium battery using the same are provided. The organic electrolyte solution uses a monomer compound which can be electrografted, and which prevents crack formation caused by volumetric changes in the anode active material during battery charging/discharging. This improves charge/discharge characteristics, thereby improving the stability, reliability, and charge/discharge efficiency of the battery.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: September 27, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-gyoon Ryu, Sang-kook Mah, Jae-young Choi, Seok-soo Lee