Patents Assigned to SK INNOVATIONS CO., LTD.
  • Electrochemical biosensor using dual electrode pair
    Patent number: 11060125
    Abstract: An electrochemical biosensor using a sensing system includes a working electrode including an active surface modified through a linker; and an auxiliary electrode. The sensor has a high current value compared with an existing sensor and retains excellent stability and sensitivity, and thus can be expected to be easily used for sensing various kinds of biomaterials.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: July 13, 2021
    Assignees: SK INNOVATION CO., LTD., UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Heung Joo Shin, Yeong Jin Lim, Yun-Jeong Lee, Sharma Deepti
  • Method of producing carbon nanotubes in fluidized bed reactor
    Patent number: 11053123
    Abstract: Provided is a method of producing carbon nanotubes by supplying a catalyst and a carbon source to a fluidized bed reactor. The fluidized bed reactor has an expanded zone. A flow velocity (linear velocity) of a raw material supplied to the fluidized bed reactor is equal to or higher than a terminal velocity of an internal material in the fluidized bed reactor.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: July 6, 2021
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Sung Real Son, Ji Min Kim, Min Ji Sung, Sang Uk Kim, Jung Yul Son
  • Pouch case, and secondary battery and secondary battery pack using the same
    Patent number: 11056734
    Abstract: Provided is a pouch case including first and second accommodation portions formed to accommodate the electrode assembly, a sealing portion formed along an outer part of the pouch case to surround the first and second accommodation portions, and a connecting portion formed with the same depth as that of the first and second accommodation portion and configured to connect the first and second accommodation portions at a predetermined interval, wherein a protrusion protrudes in a direction toward the sealing portion at opposite ends of the connecting portion. Accordingly, in the pouch case, and a secondary battery and a secondary battery pack using the same, a perfect cooling structure is acquired by uniformly forming one side surface of the secondary battery, and thus, an effect of holding one side surface of the secondary battery to be close to a cooling plate to maximize cooling efficiency is achieved.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: July 6, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Tae Il Kim, Won Seok Jeong, Sung Yeop Kim
  • Random copolymer, laminate, and method for forming pattern
    Patent number: 11054747
    Abstract: Provided are a random copolymer for forming a neutral layer promoting directed self-assembly pattern formation, a laminate for forming a pattern including the same, and a method for forming a high-quality pattern using the same.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: July 6, 2021
    Assignee: SK Innovation Co., Ltd.
    Inventors: Nam Kyu Lee, Sun Young Kim, Kwang Kuk Lee, Jin Su Ham
  • Etching composition, method for etching insulating layer of semiconductor devices and method for preparing semiconductor devices
    Patent number: 11028321
    Abstract: An etching composition is provided. The etching composition includes phosphoric acid, phosphoric anhydride, a silane compound represented by Formula 1 below and water: wherein R1 to R6 are independently hydrogen, halogen, a substituted or unsubstituted C1-C20 hydrocarbyl group, a C1-C20 alkoxy group, a carboxy group, a carbonyl group, a nitro group, a tri(C1-C20-alkyl)silyl group, a phosphoryl group, or a cyano group. L is a direct bond or C1 to C3 hydrocarbylene, and A is an n-valent radical, while n is an integer of 1 to 4.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: June 8, 2021
    Assignees: SK Innovation Co., Ltd., SK-Materials Co., Ltd.
    Inventors: Cheol Woo Kim, Yu Na Shim, Kwang Kuk Lee, Jae Hoon Kwak, Young Bom Kim, Jong Ho Lee, Jin Kyung Jo
  • Cathode active material for lithium secondary battery and lithium secondary battery including the same
    Patent number: 11031590
    Abstract: A cathode active material for a lithium secondary battery includes a lithium-aluminum-titanium oxide formed on a surface of a lithium metal oxide particle having a specific formula. The cathode active material may have an improved structural stability even in a high temperature condition.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: June 8, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Mi Jung Noh, Jik Soo Kim, Sang Bok Kim, Ji Hoon Choi, Kook Hyun Han
  • Battery module for secondary battery
    Patent number: 11024871
    Abstract: Provided is a battery module for a secondary battery. The battery module includes a busbar for a connection of electrode tabs. According to exemplary embodiments of the present disclosure, in a battery module for a secondary battery, a thickness of a welded portion may be reduced while maintaining a total cross-sectional area of a busbar when electrode tabs of each of secondary batteries are connected in series or in parallel by a laser welding. Thus, the battery module may have an enhanced welding quality, and also may have an effect of being applicable to a high-capacity battery or a battery that is used for a long period of time.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: June 1, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Ji Hoon Lim, Kwan Yong Kim, Tae Gu Lee, Jae Il Hwang
  • Ultra large-width and consecutive coating device and method for manufacturing membrane using the same
    Patent number: 11020710
    Abstract: Provided is an ultra large-width coating device applied to a consecutive process. More particularly, the present invention relates to a coating device capable of maximizing productivity by consecutively manufacturing a large-width film without reducing physical properties of the manufactured film by overcoming a problem in that a coating width is limited during a coating process using the existing contact type coating roller, and a method for manufacturing an ultra large-width membrane using the same.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: June 1, 2021
    Assignees: SK INNOVATION CO., LTD., SK IE TECHNOLOGY CO., LTD.
    Inventors: Dong Jin Joo, Kyu Young Cho, Yun Bong Kim, Su Ji Lee, Won Sub Kwack, Hye Jin Kim
  • Lithium composite phosphate-based compound and preparation method therefor
    Patent number: 11021367
    Abstract: Provided is a porous lithium composite phosphate-based compound containing lithium and having open pores formed in primary particles. As the open pores are formed in the primary particles themselves, a contact area between an electrolyte and the lithium composite phosphate-based compound is maximized, and low conductivity is compensated for, such that a diffusion rate of lithium ions is remarkably increased, and when the lithium composite phosphate-based compound is used as an active material of a secondary battery, the secondary battery may be charged and discharged at a high speed. Additionally, there are advantages in that an electrode density may be significantly increased in addition to the increase in the diffusion rate of the lithium ions, and charge and discharge cycle characteristics may be significantly stable.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: June 1, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Min Gu Kang, Seong Ho Lee, Jung In Yeon, Kook Hyun Han, Jung Hwan Kim
  • Heteroatom ligand, oligomerization catalyst containing same, and method for preparing oligomer
    Patent number: 11020729
    Abstract: The present invention relates to a heteroatom ligand, an oligomerization catalyst containing the same, and a method for preparing an oligomer by using the same. Specifically, the present invention relates to a heteroatom ligand having a silsesquioxane derivative, an oligomerization catalyst containing the same, and a method for preparing an oligomer by using the same.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: June 1, 2021
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Ho Seong Lee, Jin Haek Yang, Myoung Lae Kim, Yong Nam Joe
  • Method of olefin oligomerization
    Patent number: 11021418
    Abstract: The present invention relates to a method for olefin oligomerization, and can provide a method for olefin oligomerization. The method includes the steps of: introducing an oligomerization transition metal catalyst, olefin monomers, and a solvent into a reactor and performing an olefin oligomerization reaction to produce an oligomer; introducing a catalyst deactivator to a reaction product of the oligomerization reaction to deactivate the catalyst, with the catalyst deactivator including at least one functional group containing at least one selected from the group including oxygen, phosphor, nitrogen, and sulfur and having a number average molecular weight of 400 or more; separating the oligomer through distillation in a distiller; and separating the catalyst deactivator through the bottom end of the distiller.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: June 1, 2021
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Sungreal Son, Hyoseung Park, Inhyoup Song, So Hee Sim, Chansaem Park, Woosung Jung
  • Method of preparing lithium metal oxide and method of manufacturing lithium secondary battery
    Patent number: 11005098
    Abstract: In a method of preparing a lithium metal oxide, a preliminary lithium metal oxide is prepared. The preliminary lithium metal oxide is washed using a washing solution to remove lithium salt impurities. The washing solution includes water and an organic ligand multimer compound. The lithium metal oxide having improved structural uniformity and stability is obtained using the washing solution.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: May 11, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Jik Soo Kim, Mi Jung Noh, Kook Hyun Han
  • Lithium secondary battery
    Patent number: 10998599
    Abstract: A lithium secondary battery includes a plurality of electrode cells, each of which includes a first electrode, a second electrode having a different polarity from that of the first electrode and a separation layer interposed between the first electrode and the second electrode, and at least one ion permeation barrier between neighboring ones of the electrode cells. The ion permeation barrier has an air permeability less than that of the separation layer.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: May 4, 2021
    Assignee: SK Innovation Co., Ltd.
    Inventors: Yong Hyun Cho, Jae Woong Kim, Min Gu Kang, Young Hoon Do, Whee Sung Kim
  • Composite separation membrane for lithium secondary battery and manufacturing method therefor
    Patent number: 10985356
    Abstract: The present invention relates to a composite separation membrane for a lithium secondary battery, having an excellent effect of improving the life time and safety of a battery and a lithium secondary battery including the membrane. The composite separation membrane includes a porous base layer; a heat-resistant layer formed on one side or both sides of the porous base layer; and a fusion layer formed on an outermost layer. The heat-resistant layer includes inorganic particles connected and fixed by binder polymers, and the fusion layer includes crystalline polymers in the form of particles having a melting temperature of 100° C. or higher.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: April 20, 2021
    Assignees: SK Innovation Co., Ltd., SK IE Technology Co., Ltd.
    Inventors: Dong Jin Joo, Su Ji Lee, Kyu Young Cho, Yun Bong Kim, Jae Woong Kim
  • Hierarchical EU-2 type zeolite having both micropores and mesopores, and preparation method therefor
    Patent number: 10974231
    Abstract: The present invention provides a method for preparing hierarchical zeolite and hierarchical zeolite prepared thereby. The method includes the steps of: carrying out a reaction of a mixture containing water, a silica precursor, an alumina precursor, a pH adjustment material, at least one structure-inducing material, and at least one surfactant; and carrying out drying and heat treatment. The structure-inducing material and the surfactant have different carbon atoms while the surfactant has more carbon atoms than the structure-inducing material.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: April 13, 2021
    Assignee: SK Innovation Co., Ltd.
    Inventors: Young-Eun Cheon, Seon-Ju Lim, Tae-Jin Kim, Chang-Q Lee
  • N-heptane production method
    Patent number: 10975003
    Abstract: Provided is an n-heptane production method including: a step of distilling a feed containing C6?, C7, and C8+ hydrocarbon components, removing the C8+ and C6? hydrocarbon components, and separating the C7 hydrocarbon component; a step of adding the separated C7 hydrocarbon component to a hydrogenation apparatus and hydrogenating the separated C7 hydrocarbon component; a step of adding the hydrogenated C7 hydrocarbon component to a simulated moving bed (SMB) apparatus and separating the hydrogenated C7 hydrocarbon component into an extract containing n-heptane and a raffinate containing other components; and a step of distilling the extract and separating the n-heptane in an extract column, wherein a purity of the produced n-heptane is 98 wt % or higher.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: April 13, 2021
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Kyung Jin Jeon, Soo Kil Kang
  • Multi-cell tab cutting apparatus and method therefor
    Patent number: 10971750
    Abstract: Disclosed herein are a multi-cell tab cutting apparatus for a plurality of cells, which have a plurality of tabs formed at one side, and a method therefor. The multi-cell tab cutting apparatus includes a base frame, a cell tab fixer connected to the base frame and configured to fix and support the plurality of tabs, and a cutter positioned at the base frame and configured to cut the plurality of tabs through driving.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: April 6, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Seung Hoon Ju, Kwan Yong Kim, Ji Hoon Lim, Eun Jeong Choi, Gyu Jin Chung
  • Battery module
    Patent number: 10964981
    Abstract: The present invention provides a battery module comprising: a plurality of battery cells of which the horizontal length of a front surface is formed to be longer than the vertical length and which are vertically stacked; a cooling fin which has a first cooling part contacting an upper and lower surface of adjacent battery cells, and a second cooling part extending from both side surfaces of the first cooling part and contacting both side surfaces of the battery cells which are in contact with the first cooling part; and a side cooling fin which has an ground part contacting a side surface of the second cooling part of the cooling fin, and contacting a heat sink located in a lower part.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: March 30, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Young-Sun Choi, Tae-Gu Lee, Seung-Hoon Ju
  • Electrode plate aligned state inspection system and method
    Patent number: 10957944
    Abstract: Provided are an electrode aligned state inspection system and method of imaging a stacking process of an electrode plate, inspecting a position of the electrode plate, and determining whether or not a product is defective. When a misalignment occurs during the stacking process of a cathode plate, an anode plate, and a separator, an operator immediately recognizes the occurrence of the misalignment, and therefore, it is possible to improve a quality reliability of the electrode assembly. In addition, since it is determined whether or not the product is defective during a production process of the electrode assembly, an amount of waste may be reduced. The video data obtained by the imaging of the production process of the electrode assembly is automatically stored, and therefore, the data may be used as data that may be checked later when the quality is checked and the defective product is produced.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: March 23, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Dae Soo Han, Hong Jae Koh, Sang Ho Park, Sang Kyu Han
  • Method of preparing lithium metal oxide and method of manufacturing lithium secondary battery
    Patent number: 10957899
    Abstract: In a method of preparing a lithium metal oxide, a preliminary lithium metal oxide is prepared. The preliminary lithium metal oxide is washed using an organic washing solution to remove lithium salt impurities. The organic washing solution includes an organic solvent and a multivalent carboxylic acid compound. A minimum distance between oxygen atoms included in different carboxylic acid groups neighboring each other in the multivalent carboxylic acid compound is 220 pm or more.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: March 23, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Mi Jung Noh, Jik Soo Kim, Kook Hyun Han