Patents Assigned to SK INNOVATIONS CO., LTD.
  • Pouch case, pouch type secondary battery and manufacturing method thereof
    Patent number: 11171376
    Abstract: Provided are a pouch case for a pouch type secondary battery in which one corner is in close contact with a cooling plate and a pouch type secondary battery including the same. In the pouch case, by controlling a shape relation among a forming portion formed to have a non-zero depth determined in advance at a center to accommodate one side of an electrode assembly, a receiving portion in surface contact with a side surface of the electrode assembly at the time of sealing the pouch case, and a sealing portion for sealing opposing ends of the forming portion and the electrode assembly, a size of a sealing protrusion formed after the electrode assembly is packaged through mechanical properties of a metal laminate sheet and a simplified die and punch may be minimized.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: November 9, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Hee Gyoung Kang, Tae Il Kim
  • Ethylene-(meth)acrylic acid copolymer and water-dispersive composition including the same
    Patent number: 11168163
    Abstract: An ethylene-(meth)acrylic acid copolymer has a polydispersity index (PDI) in a range from 3.5 to 8.0, and has a melt flow index (MFI) measured at 190° C. and 2.16 kg in a range from 350 g/10 min to 1800 g/10 min A water-dispersive composition includes the ethylene (meth)acrylic acid copolymer, a neutralizing agent and an aqueous medium.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: November 9, 2021
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd., SKGC Americas Inc.
    Inventors: Yong Zheng, Doh Yeon Park, Mark Jasek, Suk Joon Kim, Hai Jin Shin, Ju Eun Jung, Byoung Cheon Jo, Christopher Balhoff, Du Youn Ka
  • Composition for forming hard coating layer, method of preparing hard coating film and hard coating film prepared by using the same
    Patent number: 11168212
    Abstract: Provided is a composition for forming a hard coating layer, which includes an epoxy siloxane resin, a crosslinking agent including a compound having an alicyclic epoxy group, a thermal initiator including a compound represented by Chemical Formula 2, and a photoinitiator to decrease curls and increase hardness of the hard coating film.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: November 9, 2021
    Assignees: SK Innovation Co., Ltd., SK ie technology Co., Ltd.
    Inventors: Jong Nam Ahn, Byoung Sun Ko, Tae Sug Jang, Jin Su Park, Ho Chul Yoon
  • Secondary battery and method for manufacturing the same
    Patent number: 11152659
    Abstract: Disclosed are a secondary battery and a method for manufacturing the same. According to an embodiment of the present invention, there is provided a secondary battery, including: an exterior material which includes a pouch film and a sealing portion formed at an outer side of the pouch film; and an electrode assembly which includes a plurality of electrode bodies laminated with a separator interposed therebetween and are packaged by the exterior material, wherein a pair of forming portions are formed within the pouch film to house the electrode assembly, and a predetermined interval is formed between the pair of forming portions.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: October 19, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventor: Hee-Gyoung Kang
  • Lithium secondary battery
    Patent number: 11145888
    Abstract: A lithium secondary battery includes a cathode, an anode and a non-aqueous electrolyte. The anode includes an anode active material which contains a mixture of an artificial graphite and a natural graphite. A sphericity of the natural graphite is 0.96 or more. The lithium secondary battery including the anode has improved life-span and power properties.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: October 12, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Dock Young Yoon, Jee Hee Lee, Sang Jin Kim
  • Method for recycling carbon dioxide
    Patent number: 11142461
    Abstract: The method for recycling carbon dioxide according to the present invention includes: injecting a reaction gas containing carbon dioxide and a carbon raw material into a rotary heating furnace; reacting the reaction gas and the carbon raw material with each other in the rotary heating furnace to generate a hydrocarbon precursor containing carbon monoxide; and converting the hydrocarbon precursor into a hydrocarbon compound, thereby exhibiting excellent conversion rate of carbon dioxide.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: October 12, 2021
    Assignee: SK Innovation Co., Ltd.
    Inventor: Min Su Koo
  • COMPOSITION FOR ETCHING, METHOD FOR ETCHING INSULATOR AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE, AND NOVEL COMPOUNDS
    Publication number: 20210309914
    Abstract: An etching composition contains phosphoric acid, phosphoric anhydride, a compound represented by the following Formula 1, and a silane compound comprising at least one silicon (Si) atom, excluding the compound represented by Formula 1: wherein, in Formula 1, A is an n-valent radical, where n is an integer of 1 to 6, L is a direct bond or hydrocarbylene, Y is selected from NR1, O, PR2 and S, where R1 to R2 are independently hydrogen, halogen, a substituted unsubstituted hydrocarbyl group, or non-hydrocarbyl group, X and Z are independently selected from N, O, P and S, and Ra to Rc are independently an unshared electron pair, hydrogen, or a substituted or unsubstituted hydrocarbyl group.
    Type: Application
    Filed: June 14, 2021
    Publication date: October 7, 2021
    Applicants: SK Innovation Co., Ltd., SK-Materials Co., Ltd.
    Inventors: Cheol Woo KIM, Min Kyung SEON, Yu Na SHIM, Jae Hoon KWAK, Young Bom KIM, Jong Ho LEE, Jin Kyung JO
  • Hard coating film and preparation method thereof
    Patent number: 11137524
    Abstract: Provided is a hard coating film including a polyamideimide substrate layer and a hard coating layer, each of which has a predetermined refractive index, with a difference in the refractive index between those layers being 0.05. The substrate layer has a tensile modulus of 3 to 7 GPa, at a thickness of 80 ?m, as measured according to ASTM D111. The present invention relates to a hard coating film having improved mechanical and optical properties.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: October 5, 2021
    Assignees: SK Innovation Co., Ltd., SK ie technology Co., Ltd.
    Inventors: Jong Nam Ahn, Keon Hyeok Ko, Byoung Sun Ko, Sang Yoon Park, Jin Su Park, Ho Chul Yoon, Tae Sug Jang
  • Separator for secondary cell having excellent heat resistance and shutdown properties
    Patent number: 11139542
    Abstract: A separator for a secondary cell includes a porous polymer substrate having a first surface, a second surface opposing the first surface, and a plurality of pores connecting the first surface to the second surface; and heat-resistant coating layers formed on at least one of the first surface and the second surface of the porous polymer substrate and on internal surfaces of the pores using an atomic layer deposition process (ALD). Pores having a non-coated region are present in the internal surfaces of the pores.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: October 5, 2021
    Assignees: SK Innovation Co., Ltd., SK IE TECHNOLOGY CO., LTD.
    Inventors: Hye Jin Kim, Won Sub Kwack, Min Sang Park
  • Fouling prevention method and method for olefin oligomerization
    Patent number: 11130112
    Abstract: The present invention provides a fouling prevention method and a method for olefin oligomerization, wherein in the method for olefin oligomerization, a predetermined anti-fouling agent is added, thereby minimizing the production of sticking byproducts generated during the reaction and fundamentally preventing the fouling of the byproducts, generated during the reaction, on an inner wall of a reactor.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: September 28, 2021
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Hyoseung Park, Chansaem Park, So Hee Sim, Inhyoup Song, Ilgu Jung, Myungjin Kim
  • High voltage battery cell
    Patent number: 11127985
    Abstract: The present invention provides a high voltage battery cell, and specifically a high voltage battery cell including a jelly roll in which three different types of jelly roll units are stacked freely and connected in series. According to embodiments of the present invention, there is provided a high voltage battery cell which is capable of implementing various cell structures while having a high voltage, and is relatively resistant to an external impact than other typical secondary cells.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: September 21, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventor: Hee Gyoung Kang
  • Lubricant composition and method of preparing copolymer using the same
    Patent number: 11118129
    Abstract: A lubricant composition includes a base oil, a phenothiazine-based polymerization inhibitor, and a polymerization inhibitory accelerator including a hindered phenol-based compound and a hydroquinone-based compound. A self-polymerization in a polymerizing process is suppressed by an interaction between the polymerization inhibitor and the polymerization inhibitory accelerator. A method of preparing a copolymer using the lubricant composition is also provided.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: September 14, 2021
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Ho Seong Lee, Sun Joo Kim, Jin Haek Yang
  • Catalyst for synthesizing carbon nanotube and method of synthesizing carbon nanotube
    Patent number: 11117120
    Abstract: A catalyst for synthesizing a carbon nanotube includes a support containing a metal, and an active metal impregnated on the support. The active metal includes cobalt and manganese. A surface molar ratio of the active metal relative to the metal of the support is 40% or less of a bulk molar ratio of the active metal relative to the metal of the support. A carbon nanotube having high purity and low resistance is obtained from the catalyst.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: September 14, 2021
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Hye Ryun Seo, Yong Tak Kwon
  • Battery pack and method for detecting whether or not busbar is opened using the battery pack
    Patent number: 11121411
    Abstract: Provided is a battery pack including a busbar connection state protection circuit that detects an opening of a busbar when the busbar that connects between unit batteries is opened by damage and prevents a problem in that a reverse voltage generated when the busbar is damaged damages a battery management board. Provided is also a method for detecting whether or not a busbar is opened using the battery pack, capable of easily detecting whether or not the busbar is opened using the battery pack.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: September 14, 2021
    Assignee: SK Innovation Co., Ltd.
    Inventor: Kyu Min Hwang
  • Lithium secondary battery
    Patent number: 11114717
    Abstract: The present invention provides a lithium secondary battery which includes an electrode assembly to which an electrode tap is attached, an electrode tap receptor configured to house a portion of the electrode assembly such that a portion of the electrode tap protrudes to an outside, and a case configured to surround the electrode assembly and seal the electrode assembly together with the electrode tap receptor, wherein the electrode tap receptor includes a gas barrier layer.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: September 7, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventor: Hee-Gyoung Kang
  • Battery module
    Patent number: 11101508
    Abstract: A battery module includes: a plurality of battery cells; a first plate supporting lower surfaces of the battery cells and dissipating heat generated in the battery cells; and a second plate being in contact with upper sides of the battery cells and dissipating heat generated in the battery cells, wherein the second plate includes accommodation grooves to receive sealing portions of the battery cells, and a heat transfer material is disposed in the accommodation grooves.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: August 24, 2021
    Assignee: SK Innovation Co., Ltd.
    Inventors: Gyu Jin Chung, Ju Yong Park, Sun Mo An
  • Secondary battery and method for manufacturing the same
    Patent number: 11094983
    Abstract: Disclosed are a secondary battery and a method for manufacturing the same. According to an embodiment of the present invention, there is provided a secondary battery, including: an exterior material which includes a pouch film and a sealing portion formed at an outer side of the pouch film; and an electrode assembly which includes a plurality of electrode bodies laminated with a separator interposed therebetween and are packaged by the exterior material, wherein a pair of forming portions are formed within the pouch film to house the electrode assembly, and a predetermined interval is formed between the pair of forming portions.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: August 17, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventor: Hee-Gyoung Kang
  • Ionic liquid containing divalent cation and monovalent anion and lubricant composition comprising same
    Patent number: 11091718
    Abstract: Disclosed are an ionic liquid, having wear resistance maintained at low temperatures and containing a divalent cation including at least one of bis(ammonium) and bis(phosphonium) and a monovalent anion including at least one of sulfonate and phosphate, and a lubricant composition including the ionic liquid.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: August 17, 2021
    Assignees: SK INNOVATION CO., LTD., SK LUBRICANTS CO., LTD.
    Inventors: Sang Hye Shin, Ha Na Song, Yu Na Shim, Sun Ae Hwang
  • Battery module
    Patent number: 11088410
    Abstract: Embodiments of the present disclosure relate to a battery module. According to an embodiment of the present disclosure, there is provided a battery module including a plurality of battery cells each including at least one electrode tab, and a bus bar in contact with the electrode tabs to electrically connect the plurality of battery cells, wherein the bus bar includes a plate in which a plurality of holes are formed, and the electrode tabs are inserted into at least a portion of the plurality of holes to electrically connect the plurality of battery cells.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: August 10, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Seung Hoon Ju, Kwan Yong Kim, Sol San Son
  • Composition for etching, method for etching insulator and method for manufacturing semiconductor device, and novel compounds
    Patent number: 11066601
    Abstract: An etching composition contains phosphoric acid, phosphoric anhydride, a compound represented by the following Formula 1, and a silane compound comprising at least one silicon (Si) atom, excluding the compound represented by Formula 1: wherein, in Formula 1, A is an n-valent radical, where n is an integer of 1 to 6, L is a direct bond or hydrocarbylene, Y is selected from NR1, O, PR2 and S, where R1 to R2 are independently hydrogen, halogen, a substituted or unsubstituted hydrocarbyl group, or non-hydrocarbyl group, X and Z are independently selected from N, O, P and S, and Ra to Rc are independently an unshared electron pair, hydrogen, or a substituted or unsubstituted hydrocarbyl group.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: July 20, 2021
    Assignees: SK Innovation Co., Ltd., SK-Materials Co., Ltd.
    Inventors: Cheol Woo Kim, Min Kyung Seon, Yu Na Shim, Jae Hoon Kwak, Young Bom Kim, Jong Ho Lee, Jin Kyung Jo