Patents by Inventor YounKyoung LEE

YounKyoung 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: 11024845
    Abstract: Disclosed are an electrode active material containing moisture in an amount less than 2,000 ppm per 1 g of lithium metal oxide or moisture in an amount less than 7,000 ppm per 1 cm3 of the lithium metal oxide, and an electrode containing moisture in an amount less than 2,000 ppm per 1 cm3 of an electrode mix.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: June 1, 2021
    Assignee: LG Chem, Ltd.
    Inventors: YounKyoung Lee, SeongMin Lee, Jihyun Kim, SooHyun Lim, Jae Hyun Lee, Jong Ho Jeon
  • Patent number: 10424781
    Abstract: Disclosed is a cathode active material comprising a combination of lithium manganese composite oxide with a spinel structure represented by the following Formula 1 and a specific oxide represented by the following Formula 2, the cathode active material having a broad potential region at 3.0 to 4.8V upon initial charge: LixMyMn2-yO4-zAZ ??(1) wherein 0.9?x?1.2, 0<y<2, and 0?z<0.2; M is at least one element selected from the group consisting of Al, Mg, Ni, Co, Fe, Cr, V, Ti, Cu, B, Ca, Zn, Zr, Nb, Mo, Sr, Sb, W, Ti and Bi; and A is at least one monovalent or bivalent anion, y?Li2M?O3.(1-y?)LiM?O2-z?A?z???(2) 0<y?<1 and 0?z?<0.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: September 24, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Daehong Kim, MinHee Lee, YounKyoung Lee
  • Publication number: 20170331103
    Abstract: Disclosed is a cathode active material comprising a combination of lithium manganese composite oxide with a spinel structure represented by the following Formula 1 and a specific oxide represented by the following Formula 2, the cathode active material having a broad potential region at 3.0 to 4.8V upon initial charge: LixMyMn2-yO4-zAZ ??(1) wherein 0.9?×?1.2, 0<y<2, and 0?z<0.2; M is at least one element selected from the group consisting of Al, Mg, Ni, Co, Fe, Cr, V, Ti, Cu, B, Ca, Zn, Zr, Nb, Mo, Sr, Sb, W, Ti and Bi; and A is at least one monovalent or bivalent anion, y?Li2M?O3.(1-y?)LiM?O2-z?A?z???(2) 0<y?<1 and 0?z?<0.
    Type: Application
    Filed: July 28, 2017
    Publication date: November 16, 2017
    Applicant: LG CHEM, LTD.
    Inventors: DAEHONG KIM, MinHee LEE, YounKyoung LEE
  • Patent number: 9356312
    Abstract: Disclosed is a method for producing a secondary battery in which an electrode assembly comprising a cathode, an anode and a separator interposed between the cathode and the anode is accommodated in a battery case, the method comprising inserting the electrode assembly into the battery case, injecting an electrolyte into the battery case accommodating the electrode assembly to obtain a secondary battery, storing the secondary battery at a SOC of 1 to 20 for 3 hours to 10 days, removing gas present in the secondary battery, and sealing the battery case, wherein the anode comprises lithium titanium oxide (LTO) represented by the following Formula 1 as an anode active material: LiaTibO4?cAc??(1) wherein a, b and c are determined according to an oxidation number of M? within ranges of 0.5?a?3, 1?b?2.5, and 0?c<0.2; and A is at least one monovalent or bivalent anion. Disclosed is also a secondary battery produced by the method.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: May 31, 2016
    Assignee: LG Chem, Ltd.
    Inventors: YounKyoung Lee, Jihyun Kim, SeongMin Lee
  • Patent number: 9246189
    Abstract: Disclosed is a secondary battery including a cathode, an anode, and an electrolyte including a lithium salt and a non-aqueous organic solvent, wherein the electrolyte includes an electrolyte additive to be decomposed at 4.5 V or higher to less than 5.5 V vs. reduction voltage of Li+.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: January 26, 2016
    Assignee: LG CHEM, LTD.
    Inventors: YounKyoung Lee, Tae Jin Park, Daehong Kim
  • Publication number: 20150004144
    Abstract: The technology described herein is directed to methods and compositions relating to the differentiation and activity of brown adipocytes, and the therapeutic uses thereof.
    Type: Application
    Filed: November 28, 2012
    Publication date: January 1, 2015
    Applicant: THE GENERAL HOSPITAL CORPORATION
    Inventors: Chad Cowan, Robert Schinzel, Tim Ahfeldt, YounKyoung Lee
  • Publication number: 20130323599
    Abstract: Disclosed is a cathode active material (and a secondary battery having the same) comprising a combination of lithium manganese composite oxide with a spinel structure of Formula 1 and an oxide of Formula 2, the material having a broad potential region at 3.0 to 4.8V upon initial charge: LixMyMn2-yO4-zAz ??(1) wherein 0.9?x?1.2, 0 <y<2, and 0?z<0.2; M is at least one element of Al, Mg, Ni, Co, Fe, Cr, V, Ti, Cu, B, Ca, Zn, Zr, Nb, Mo, Sr, Sb, W, Ti or Bi; and A is at least one monovalent or bivalent anion, y?Li2M?O3.(1?y?)LiM?O2-z?A?z???(2) 0<y?<1 and 0?z?<0.2; M? is at least one element of Mn, Sn or Zr having an oxidation number of +4; M? is at least one element of Period I or II transition metals and A? is at least one monovalent or bivalent anion.
    Type: Application
    Filed: April 17, 2013
    Publication date: December 5, 2013
    Inventors: DAEHONG KIM, MinHee LEE, YounKyoung LEE
  • Publication number: 20130302668
    Abstract: Disclosed are an electrolyte for a secondary battery which includes a non-aqueous solvent and a lithium salt and a secondary battery including the same. The electrolyte includes 1 to 13 wt % of a silane-based compound based on a total weight of the electrolyte and thus improves safety of a secondary battery including the electrolyte.
    Type: Application
    Filed: April 18, 2013
    Publication date: November 14, 2013
    Inventors: SooHyun LIM, YounKyoung LEE