Patents by Inventor Je Young Kim

Je Young 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).

  • Composite for anode active material and method of preparing the same
    Patent number: 10290860
    Abstract: Provided are a composite for an anode active material and a method of preparing the same. More particularly, the present invention provides a composite for an anode active material including a (semi) metal oxide and an amorphous carbon layer on a surface of the (semi) metal oxide, wherein the amorphous carbon layer comprises a conductive agent, and a method of preparing the composite.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: May 14, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Yoon Ah Kang, Yong Ju Lee, Rae Hwan Jo, Je Young Kim
  • Battery module having movable pressurization member
    Patent number: 10276842
    Abstract: Disclosed herein is a battery module including a module case, a battery cell stack mounted in the module case, and a movable pressurization member for pressurizing the battery cell stack.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: April 30, 2019
    Assignee: LG Chem, Ltd.
    Inventors: In Sung Uhm, Je Young Kim, Seunghyun Chung
  • Anode active material for lithium secondary battery and lithium secondary battery comprising the same
    Patent number: 10276864
    Abstract: The anode active material of the present invention comprises silicon-based particles obtained from at least one of silicon, a silicon oxide and a silicon alloy, and the silicon-based particles have a faceted shape, thereby providing high capacity and good life characteristics without causing any deterioration which has been generated in the use of conventional silicon-based particles, and eventually providing a lithium secondary battery having such characteristics.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: April 30, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Yong-Ju Lee, Yoon-Ah Kang, Je-Young Kim, Seung-Youn Choi, Mi-Rim Lee, Hye-Ran Jung, Jung-Woo Yoo
  • Negative electrode for secondary battery comprising CMC-Li salt and lithium secondary battery comprising the same
    Patent number: 10256462
    Abstract: Disclosed is a negative electrode for secondary batteries including a negative electrode mix applied to a current collector, the negative electrode mix including a negative electrode active material, a thickening agent and an aqueous binder, wherein the thickening agent is a carboxymethyl cellulose lithium salt (CMC—Li salt) having a substitution degree of a hydroxyl group (—OH) by a carboxymethyl lithium group (—CH2COOLi) of 0.7 to 1.5 and the thickening agent is present in an amount of higher than 0.6% by weight and not higher than 1.4% by weight, with respect to the total weight of the negative electrode mix.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: April 9, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Kwang Ho Jeong, Yecheol Rho, Jung Woo Yoo, Je Young Kim
  • Battery cell having improved cooling performance
    Patent number: 10249919
    Abstract: Disclosed herein is a battery cell configured to have a structure in which an electrode stack, which is configured to have a structure in which positive electrodes and negative electrodes are stacked in the height direction on the basis of the ground in the state in which separators are disposed respectively between the positive electrodes and the negative electrodes, is mounted in a battery case in a sealed state, the battery case is formed in a pipe shape having a hollow part, and the electrode stack is formed in a shape corresponding to the shape of the battery case.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: April 2, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Sei Woon Oh, Eun Ju Lee, Jung Ah Shim, Seok Koo Kim, Je Young Kim
  • Method for manufacturing electrode
    Patent number: 10243199
    Abstract: The present disclosure is intended to reduce the resistance of a high-loading electrode, to improve the impregnation ability of an electrolyte and thus to improve the rate characteristics of a battery.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: March 26, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Young-Jae Kim, Je-Young Kim
  • Positive electrode active material and lithium secondary battery including the same
    Patent number: 10217997
    Abstract: Disclosed herein are a positive electrode active material including at least one selected from among compounds represented by Formula 1 below and a lithium secondary battery including the same that is capable of improving lifetime characteristics and rate characteristics while exhibiting excellent safety: Li[LixMyM?(1-x-y)]O2-zAz (1), where M is at least one element selected from a group consisting of Ru, Mo, Nb, Te, Re, Ir, Pt, Cr, S, W, Os, and Po, M? is at least one element selected from a group consisting of Ni, Ti, Co, Al, Mn, Fe, Mg, B, Cr, Zr, Zn, and second row transition metals, A is a negative monovalent or divalent anion, and 0<x<0.3, 0.2?y?0.5, 0?z<0.5, and 0.2<x+y<0.8.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: February 26, 2019
    Assignees: LG Chem, Ltd., Research Affairs of SNU & SNU R&DB Foundation
    Inventors: Hoe Jin Hah, Kyoung Ho Kim, Il Hong Kim, Je Young Kim, Kisuk Kang, Jihyun Hong
  • Cross-linked compound particle and secondary battery including the same
    Patent number: 10217983
    Abstract: Disclosed are a cross-linked compound particle and a secondary battery including the same. More particularly, a compound particle which includes a monomer and a polymerization initiator, as a core and a film including a material disappeared at predetermined temperature as a shell is provided.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: February 26, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Seok Koo Kim, Eun Ju Lee, Bokkyu Choi, Sei Woon Oh, Je Young Kim
  • Positive electrode mix for secondary batteries including irreversible additive
    Patent number: 10218002
    Abstract: Disclosed is a positive electrode mix for secondary batteries including an irreversible additive. More particularly, provided is a positive electrode mix for secondary batteries including an irreversible additive that decreases irreversible efficiency of a positive electrode active material and a positive electrode.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: February 26, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Bokkyu Choi, Seok Koo Kim, Eun Ju Lee, Sei Woon Oh, Je Young Kim
  • Battery including gas discharging member and electrolyte injection member
    Patent number: 10211447
    Abstract: Disclosed herein is a battery including a cell having an electrode laminate and a liquid electrolyte mounted in an internal space of a battery case, a gas discharging member communicating with the internal space of the battery case for discharging gas generated in the cell out of the cell, and a liquid electrolyte injection member communicating with the internal space of the battery case for injecting a liquid electrolyte into internal space of the battery case.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: February 19, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Sei Woon Oh, Seok Koo Kim, Eun Ju Lee, Bokkyu Choi, Je Young Kim
  • Hollow packaging for cable-type secondary battery, and cable-type secondary battery comprising same
    Patent number: 10211432
    Abstract: The present invention relates to a hollow packaging for a cable-type secondary battery and a cable-type secondary battery comprising same, and more specifically, to a hollow packaging for a cable-type secondary battery and a cable-type secondary battery comprising same, wherein the hollow packaging for a cable-type secondary battery comprises a packaging sheet including a sheet-type thin metal layer provided with a corrugated pattern on the surface, a first polymer resin layer formed on one surface of the thin metal layer, and a mechanical support layer formed on the other surface of the thin metal layer, wherein the packaging sheet forms a hollow space by bending so that the first polymer resin layer faces inward.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: February 19, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Hye-Ran Jung, Je-Young Kim, Seok-Koo Kim
  • Secondary battery to which electrolyte can be additionally supplied
    Patent number: 10205137
    Abstract: Disclosed is a secondary battery to which an electrolyte can be additionally supplied. More particularly, provided is a secondary battery including an electrode assembly that includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode, and a porous elastic body that can contain an electrolyte, which are installed in a battery case.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: February 12, 2019
    Assignee: LG Chem, Ltd.
    Inventors: In Sung Uhm, Ji Yoon Kwon, Jung Woo Yoo, Je Young Kim, Hoe Jin Hah, Kyoung Ho Kim, Il Hong Kim
  • CONDUCTIVE MATERIAL DISPERSED LIQUID AND SECONDARY BATTERY MANUFACTURED USING THE SAME
    Publication number: 20190044150
    Abstract: The present invention provides a conductive material dispersed liquid including a conductive material which includes bundle-type carbon nanotubes; a dispersant which includes a hydrogenated nitrile-based rubber; and a dispersion medium, where a complex modulus (|G*| @ 1 Hz) is in a range of 20 to 500 Pa when measured by a rheometer at a frequency of 1 Hz, and a secondary battery manufactured using the same. The conductive material dispersed liquid has a controlled complex modulus to exhibit excellent dispersibility and powder resistance characteristics, and as a result, can greatly improve the output characteristics of batteries.
    Type: Application
    Filed: March 24, 2017
    Publication date: February 7, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Ye Lin KIM, Ki Yeon JO, Jung Keun YOO, Je Young KIM, Sang Hoon CHOY, Jong Heon SEOL
  • ANODE SLURRY FOR SECONDARY BATTERY FOR IMPROVING DISPERSIBILITY AND REDUCING RESISTANCE, AND ANODE COMPRISING SAME
    Publication number: 20180358622
    Abstract: The present invention provides an anode slurry for a secondary battery and an anode comprising the same, in which the dispersibility of an anode active material is improved by increasing the adsorption amount of CMC with respect to the anode active material by adjusting the degree of substitution or physical properties such as molecular weight, and a CMC blend amount is reduced so as to increase the slurry solid content and reduce the resistance of a battery.
    Type: Application
    Filed: October 19, 2016
    Publication date: December 13, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Jung Woo YOO, Hyung Suk CHO, Ye Cheol RHO, Kyung Hwa WOO, Kwang Ho JEONG, Je Young KIM
  • Anode active material and method of preparing the same
    Patent number: 10153484
    Abstract: Provided are a porous silicon-based anode active material including a core part including silicon (Si) and MxSiy, and a shell part including Si and a plurality of pores on the core part, wherein, in the MxSiy, M is at least one element selected from the group consisting of Group 2A, 3A, and 4A elements and transition metals, 1?x?4, and 1?y?4, and a method of preparing the porous silicon-based anode active material. According to an embodiment of the present invention, capacity characteristics and lifetime characteristic of a lithium secondary battery may be improved by minimizing the volume expansion of an anode active material during charge and discharge.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: December 11, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Yong Ju Lee, Jun Sik Ham, Sung Man Lee, Rae Hwan Jo, Eun Kyung Kim, Je Young Kim, Hong Kyu Park, Jung Woo Yoo, Mi Rim Lee
  • Electrode including alternately arranged electrode mixture parts and irreversible parts and secondary battery including the same
    Patent number: 10147935
    Abstract: Disclosed herein are an electrode configured such that electrode mixture parts, each of which includes an electrode active material, and irreversible parts, each of which includes an irreversible additive, are alternately coated on one surface or both surfaces of a current collector to form an electrode pattern and a secondary battery including the same.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: December 4, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Seok Koo Kim, In Chul Kim, Je Young Kim, Hyun Min Kim, Jung Ah Shim, Sei Woon Oh, Eun Ju Lee, Ji Eun Lee
  • Battery cell of vertically stacked structure
    Patent number: 10135089
    Abstract: A battery cell is configured to have a structure in which an electrode stack is configured to have a structure in which positive electrodes and negative electrodes are stacked in a height direction. Separators are disposed respectively between the positive electrodes and the negative electrodes, and when mounted in a battery case in a sealed state. The electrode stack is configured to have a structure in which a length in a height direction, which is a stacked direction of the electrode stack, on the basis of the ground is greater than that in a width direction perpendicular to the height direction, and the battery case is formed in the shape of a pipe corresponding to an outside of the electrode stack.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: November 20, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Sei Woon Oh, Eun Ju Lee, Je Young Kim
  • Positive electrode active material and lithium secondary battery including the same
    Patent number: 10128502
    Abstract: Disclosed herein are a positive electrode active material including at least one selected from among compounds represented by Formula 1 below and a lithium secondary battery including the same that is capable of improving lifetime characteristics and rate characteristics while exhibiting excellent safety: xLi2MyMn(1-y)O3-zAz*(1?x)LiM?O2-z?A?z? (1), where M is at least one element selected from a group consisting of Ru, Mo, Nb, Te, Re, Ir, Pt, Cr, S, W, Os, and Po, M? is at least one element selected from a group consisting of Ni, Ti, Co, Al, Mn, Fe, Mg, B, Cr, Zr, Zn, and second row transition metals, A and A? are each independently a negative monovalent or divalent anion, and 0<x<1, 0.3<y<1, 0?z<0.5, and 0?z?<0.5.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: November 13, 2018
    Assignees: LG Chem, Ltd., Research Affairs of SNU & SNU R&DB Foundation
    Inventors: Hoe Jin Hah, Sun Sik Shin, Kyoung Ho Kim, Il Hong Kim, Je Young Kim, Kisuk Kang, Jihyun Hong
  • CABLE-TYPE SECONDARY BATTERY
    Publication number: 20180323418
    Abstract: The present disclosure relates to a cable type secondary battery which includes: a cable type electrode assembly including an inner electrode, a separator layer formed to surround the outer surface of the inner electrode and preventing a short-circuit between electrodes, and an outer electrode formed to surround the separator layer; a taping layer formed by spirally winding a sheet type tape so that it surrounds the outer surface of the cable type electrode assembly; and a packaging formed to surround the outer surface of the taping layer. According to the present disclosure, it is possible to prevent separation of the separator layer or the outer electrode, and thus to reinforce the bending characteristics of the cable type secondary battery.
    Type: Application
    Filed: February 6, 2017
    Publication date: November 8, 2018
    Applicant: LG Chem, Ltd.
    Inventors: In-Sung Uhm, Je-Young Kim, Suk-In Noh, Young-Ji Yuk, Dong-Chan Lee
  • CABLE-TYPE SECONDARY BATTERY
    Publication number: 20180309153
    Abstract: The present disclosure relates to a cable-type secondary battery having improved performance and capable of alleviating stress caused by external force. The present disclosure provides provided a sheet-type electrode assembly which includes: an electrode array including an inner electrode, a first separator, a double-sided electrode, a second separator and an outer electrode stacked successively; and a support layer formed integrally on at least one surface of the electrode array by compression, and a cable-type secondary battery including the same.
    Type: Application
    Filed: September 9, 2016
    Publication date: October 25, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Suk-In Noh, Dong-Chan Lee, In-Sung Uhm, Je-Young Kim, Jong-Hwa Choi