Patents by Inventor Dong-Myung Kim

Dong-Myung Kim 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).

  • BALANCED STEPPED ELECTRODE ASSEMBLY, AND BATTERY CELL AND DEVICE COMPRISING THE SAME
    Publication number: 20140255743
    Abstract: There are provided an electrode assembly, and a battery cell, a battery pack, and a device. The electrode assembly includes a combination of two or more types of electrode units having different areas, wherein the electrode units are stacked such that steps are formed, and electrode units are formed such that a positive electrode and a negative electrode face one another at an interface between the electrode units.
    Type: Application
    Filed: May 22, 2014
    Publication date: September 11, 2014
    Applicant: LG Chem, Ltd.
    Inventors: Sung-Jin Kwon, Soon-Ho Ahn, Dong-Myung Kim, Ki-Woong Kim, Young-Hoon Kim, Sung-Han Yoon, Seung-Min Ryu
  • ELECTRODE HAVING ROUND CORNER
    Publication number: 20140255755
    Abstract: Disclosed herein is an electrode assembly including two or more unit cells, each of which includes a cathode, an anode, and a separator disposed between the cathode and the anode, electrode tabs protruding from the respective electrodes, wherein the unit cells are stacked in a height direction on the basis of a plane, at least two of the unit cells having different planer sizes, and one or more corners of each of the unit cells, which do not tangent to one side of each of the unit cells at which the electrode tabs are formed, are round.
    Type: Application
    Filed: March 18, 2013
    Publication date: September 11, 2014
    Applicant: LG Chem, Ltd.
    Inventors: Sungjin Kwon, Ki Woong Kim, Dong-Myung Kim
  • Electrode with organic/inorganic composite and electrochemical device comprising the same
    Patent number: 8822073
    Abstract: Disclosed is an electrode comprising an organic/inorganic composite introduced onto either surface or both surfaces thereof, the organic/inorganic composite comprising inorganic particle or aggregates thereof having a unique spectrum or color pattern according to a predetermined rule, and a polymer capable of interconnecting and fixing the inorganic particles. Also, disclosed are an electrochemical device comprising the above electrode, and a method for identifying the origin or kind of an electrode itself or an electrochemical device comprising the same by using the above electrode.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: September 2, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Sang-Young Lee, Dae-Jong Seo, Dong-Myung Kim, Seok-Koo Kim, Hyun-Min Jang
  • ELECTRODE ASSEMBLY INCLUDING ELECTRODE UNITS HAVING THE SAME WIDTH AND DIFFERENT LENGTHS, AND BATTERY CELL AND DEVICE INCLUDING THE ELECTRODE ASSEMBLY
    Publication number: 20140234682
    Abstract: There are provided an electrode assembly, a battery cell including the electrode assembly, and a device including the electrode assembly. The electrode assembly includes a combination of two or more electrode units having the same width and different lengths, wherein the electrode units are stacked so that a stepped portion is formed between the electrode units, and electrodes having different polarities face each other at an interface between the electrode units.
    Type: Application
    Filed: April 25, 2014
    Publication date: August 21, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Sung-Jin Kwon, Ki-Woong Kim, Soon-Ho Ahn, Dong-Myung Kim, Young-Hoon Kim, Sung-Han Yoon, Seung-Min Ryu
  • ELECTRODE ASSEMBLY HAVING EXCELLENT DEGREE OF FREEDOM IN SHAPE THEREOF IN THICKNESS DIRECTION, SECONDARY CELL BATTERY, BATTERY PACK, AND DEVICE INCLUDING ELECTRODE ASSEMBLY
    Publication number: 20140227579
    Abstract: There is provided an electrode assembly having increased degrees of structural freedom in the thickness direction thereof. The electrode assembly includes negative and positive electrodes alternately stacked with separators interposed therebetween, wherein the electrode assembly is formed by stacking N electrode stacks where N is a natural number equal to or greater than 2, each of the electrode stacks comprises electrodes having the same area and stacked with separators interposed therebetween, and neighboring electrode stacks of the electrode stacks have different electrode areas, wherein a first electrode stack of the electrode stacks is formed by stacking unit cells respectively including an odd number of electrodes, and the other electrode stacks stacked on the first electrode are formed by stacking unit cells respectively including an even number of electrodes.
    Type: Application
    Filed: April 18, 2014
    Publication date: August 14, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Sung-Jin Kwon, Ki-Woong Kim, Soon-Ho Ahn, Dong-Myung Kim, Young-Hoon Kim, Sung-Han Yoon, Seung-Min Ryu
  • SECONDARY BATTERY OF EXCELLENT PRODUCTIVITY AND SAFETY
    Publication number: 20140220394
    Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on the top of the jelly-roll includes a perforated inlet enabling gas discharge and penetration of electrode terminals, and a plurality of fine pores that allow permeation of an electrolyte solution, but do not allow permeation of foreign materials having a size of 100 ?m or higher.
    Type: Application
    Filed: June 7, 2012
    Publication date: August 7, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Do Gyun Kim, Dong-Myung Kim, Sang Bong Nam, Dong Sub Lee, Jun Ho Moon, Sang Sok Jung
  • BATTERY HAVING ENHANCED ELECTRICAL INSULATION CAPABILITY
    Publication number: 20140220401
    Abstract: Disclosed is a battery including a cathode in which cathode active-material coating layers provided on both surfaces of a cathode collector are longitudinally deviated from each other, and an anode having at least one anode active-material coating layer provided on an anode collector, the cathode and anode being wound to face each other with a separator interposed therebetween. At least one of a winding beginning portion and winding ending portion of the cathode is provided with a cathode uncoated part for installation of a cathode lead. An insulator tape is attached to the boundary of the cathode active-material coating layer at a position where the anode active-material coating layer faces a non-coating part of the cathode not containing the cathode active-material coating layer, achieving enhanced electrical insulation capability and consequential safety of the battery.
    Type: Application
    Filed: April 11, 2014
    Publication date: August 7, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Jin Soo LEE, Kil Young LEE, Dong Myung KIM
  • SECONDARY BATTERY INCLUDING INTEGRATED ANODE AND CATHODE LEADS AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20140199581
    Abstract: Provided is a secondary battery including integrated anode and cathode leads and a method of manufacturing the same. An anode lead and a cathode lead of a secondary battery aligned to be parallel with respect to each other are encompassed by a single lead film. Thus, sealing may be easily implemented, lead film components may be managed as one component, and vibrations of an electrode lead may be prevented.
    Type: Application
    Filed: February 21, 2014
    Publication date: July 17, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Sang-Baek RYU, Dong-Myung KIM, Ki-Woong KIM, Hyang-Mok LEE
  • SECONDARY BATTERY COMPRISING INSULATOR
    Publication number: 20140186670
    Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on top of the jelly-roll includes a perforated inlet enabling gas discharge and penetration of electrode terminals, a plurality of fine pores having a size that allows permeation of an electrolyte solution, but does not allow permeation of foreign materials, and a plurality of strip or bead shaped protrusions disposed in transverse and/or longitudinal directions on one or both surfaces of the insulator.
    Type: Application
    Filed: June 4, 2012
    Publication date: July 3, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Do Gyun Kim, Dong-Myung Kim, Sang Bong Nam, Dong Sub Lee, Jun Ho Moon, Sang Sok Jung
  • ELECTRODE ASSEMBLY OF STAIR-LIKE STRUCTURE
    Publication number: 20140186685
    Abstract: Disclosed herein is an electrode assembly mounted in a battery case of a secondary battery. The electrode assembly is configured to have a structure in which a cathode and an anode are stacked in a state in which a separator plate is disposed between the cathode and the anode. The electrode assembly includes an even number of unit cells, each of the unit cells having a structure in which the uppermost electrode plate and the lowermost electrode plate have the same polarity. The electrode assembly has a stair-like structure.
    Type: Application
    Filed: March 15, 2013
    Publication date: July 3, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Sungjin KWON, Ki Woong KIM, Soonho AHN, Dong-Myung KIM, Young Hoon KIM, Sunghan YOON, Seungmin RYU
  • SECONDARY BATTERY WITH EXCELLENT PRODUCTIVITY AND SAFETY
    Publication number: 20140178725
    Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case and a plate-shaped insulator is mounted on top of the jelly-roll, wherein the insulator has a porous structure in which a plurality of fine pores communicate in a longitudinal direction, or in traverse and longitudinal directions.
    Type: Application
    Filed: February 11, 2014
    Publication date: June 26, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Do Gyun KIM, Dong-Myung KIM, Dong Sub LEE, Sang Bong NAM, Sang Sok JUNG
  • SECONDARY BATTERY WITH EXCELLENT PRODUCTIVITY AND SAFETY
    Publication number: 20140162102
    Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on the top of the jelly-roll includes a molded article made of a polymer resin or a polymer composite and a plurality of fine pores is perforated through the molded article.
    Type: Application
    Filed: February 11, 2014
    Publication date: June 12, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Do Gyun KIM, Dong-Myung KIM, Dong Sub LEE, Sang Bong NAM, Sang Sok JUNG
  • Battery for portable terminal
    Patent number: D709440
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: July 22, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Jin Kwon, Ki-Woong Kim, Dong-Myung Kim
  • Battery for portable terminal
    Patent number: D709441
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: July 22, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Jin Kwon, Ki-Woong Kim, Dong-Myung Kim
  • Battery for portable terminal
    Patent number: D709442
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: July 22, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Jin Kwon, Ki-Woong Kim, Dong-Myung Kim
  • Battery for portable terminal
    Patent number: D709443
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: July 22, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Jin Kwon, Ki-Woong Kim, Dong-Myung Kim
  • Battery for portable terminal
    Patent number: D709822
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: July 29, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Jin Kwon, Ki-Woong Kim, Dong-Myung Kim
  • Battery for portable terminal
    Patent number: D712345
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: September 2, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Jin Kwon, Ki-Woong Kim, Dong-Myung Kim
  • Battery for portable terminal
    Patent number: D712346
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: September 2, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Jin Kwon, Ki-Woong Kim, Dong-Myung Kim
  • Battery for portable terminal
    Patent number: D712825
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: September 9, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Jin Kwon, Ki-Woong Kim, Dong-Myung Kim