Abstract: Provided are a separator and an electrochemical device using the same, in particular, a separator having significantly low heat shrinkage even at a high temperature and also significantly improved adhesive strength by including inorganic particles having specific fluorescence properties in the separator, and an electrochemical device using the same.
Type:
Grant
Filed:
March 14, 2023
Date of Patent:
December 10, 2024
Assignees:
SK INNOVATION CO., LTD., SK IE TECHNOLOGY CO., LTD.
Inventors:
Jae Suk Choi, Seon Ju Lim, Sang Yoon Ji, Hye Jin Park, Seung Woo Lee, Chang Q Lee, Young Eun Cheon
Abstract: In the present disclosure, a dehydrogenation catalyst in which cobalt in the form of single atom is supported on an inorganic oxide (specifically, silica) support in which an alkali metal in the form of single atom is fixed by alkali metal pretreatment and a method for producing the same, and a method for producing olefins by dehydrogenating corresponding paraffins, specifically light paraffins in the presence of the dehydrogenation catalyst are described.
Type:
Grant
Filed:
October 30, 2019
Date of Patent:
December 10, 2024
Assignees:
SK Innovation Co., Ltd., SK Geo Centric Co., Ltd.
Inventors:
Ho Won Lee, Je Mi Lim, Hee Soo Kim, Ju Hwan Im, Dae Hyun Choo, Ka Young Kim, Jae Suk Choi
Abstract: Disclosed are a recombinant acid-resistant yeast having lactic acid-producing ability and suppressed glycerol production and a method of preparing lactic acid using the same. More particularly, disclosed are a recombinant acid-resistant yeast into which a gene involved in lactic acid production is introduced and in which a gene involved in glycerol production is deleted or attenuated, and a method of preparing lactic acid using the same. When producing lactic acid using the recombinant acid-resistant yeast, the production of lactic acid is maintained while the production of glycerol is reduced, so crosslinking by glycerol can be suppressed in the oligomerization reaction for conversion to lactide, and thus the conversion yield of lactic acid to lactide can be increased.
Type:
Grant
Filed:
March 31, 2021
Date of Patent:
December 3, 2024
Assignee:
SK Innovation Co., Ltd.
Inventors:
Jae Yeon Park, Ki Sung Lee, Tae Young Lee
Abstract: Embodiments of the present disclosure relate to a method for producing refined hydrocarbons from waste plastics, the method including: a pretreatment process of pretreating waste plastics; a pyrolysis process of producing pyrolysis gas by introducing the waste plastics pretreated in the pretreatment process into a pyrolysis reactor; a lightening process of producing pyrolysis oil by introducing the pyrolysis gas into a hot filter; and a distillation process of distilling the pyrolysis oil to obtain refined hydrocarbons, wherein a liquid condensed in the hot filter is re-introduced into the pyrolysis reactor, and a system for producing refined hydrocarbons from waste plastics.
Type:
Grant
Filed:
January 15, 2024
Date of Patent:
November 26, 2024
Assignees:
SK INNOVATION CO., LTD., SK GEO CENTRIC CO., LTD.
Inventors:
Sang Hwan Jo, Soo Kil Kang, Yong Woon Kim, Min Gyoo Park, Min Woo Shin, Jin Seong Jang
Abstract: Provided is an adhesive composition including an ethylene-acrylic acid copolymer and a post-consumer recycled resin (PCR), wherein the ethylene-acrylic acid copolymer has a melt index (190° C., 2.16 kg, ASTM D1238) of 1 to 30 g/10 min, and the PCR has a melt index (190° C., 2.16 kg, ASTM D1238) of 1 to 10 g/10 min, and a preparation method thereof, which can have excellent processability, low gel content, and excellent adhesive strength by easily distinguishing a certain level of PCR resin by a capillary rheometer and mixing the PCR resin with an ethylene-acrylic acid copolymer.
Type:
Grant
Filed:
July 19, 2023
Date of Patent:
November 26, 2024
Assignees:
SK Innovation Co., Ltd., SK Geo Centric Co., Ltd.
Inventors:
Bu Yeon Hwang, Sang Ha Son, Dong Hyun Woo, Ji Hyeon Choi
Abstract: An etching composition includes phosphoric acid, a silane compound comprising at least one silicon (Si) atom, and an organic phosphate represented by Formula 1 below: wherein R1 to R3 are independently hydrogen, or a substituted or unsubstituted hydrocarbyl group, and at least one of R1 to R3 is a substituted or unsubstituted hydrocarbyl group.
Type:
Grant
Filed:
August 14, 2020
Date of Patent:
November 19, 2024
Assignees:
SK Innovation Co., Ltd., SK INC.
Inventors:
Cheol Woo Kim, Kwang Kuk Lee, Jae Hoon Kwak, Young Bom Kim, Jung Ha Shin, Jong Ho Lee, Jin Kyung Jo
Abstract: Embodiments of the present disclosure relate to a method and system for producing refined hydrocarbons from waste plastic pyrolysis oil. The methods and system for producing refined hydrocarbons from waste plastic pyrolysis oil according to the embodiments of the present disclosure may minimize formation of an ammonium salt (NH4Cl) and may prevent an adhesion phenomenon of impurity particles in a reactor in a refining process of waste plastic pyrolysis oil containing impurities including chlorine and nitrogen. In addition, the methods and system for producing refined hydrocarbons from waste plastic pyrolysis oil according to the embodiments of the present disclosure may have excellent refining efficiency and may implement a long-term operation of a process because deactivation of a catalyst used in the process is prevented, and may produce lightened refined hydrocarbons having a low content of impurities from waste plastic pyrolysis oil.
Type:
Grant
Filed:
February 15, 2024
Date of Patent:
November 12, 2024
Assignees:
SK INNOVATION CO., LTD., SK GEO CENTRIC CO., LTD.
Inventors:
Yong Woon Kim, Seo Yeong Kang, Soo Kil Kang, Min Gyoo Park, Young Moo Park, Min Woo Shin, Jae Hwan Lee, Jin Seong Jang, Sang Hwan Jo
Abstract: Various embodiments of the present disclosure relate to methods and system for producing refined hydrocarbons from waste plastic pyrolysis oil. The methods and system for producing refined hydrocarbons from waste plastic pyrolysis oil according to the embodiments of the present disclosure may minimize formation of an ammonium salt (NH4Cl) and may prevent an adhesion phenomenon of impurity particles in a reactor in a refining process of waste plastic pyrolysis oil containing impurities including chlorine and nitrogen. In addition, the methods and system for producing refined hydrocarbons according to embodiments of the present disclosure may have excellent refining efficiency and may implement a long-term operation of a process because deactivation of a catalyst used in the process is prevented, and may produce refined hydrocarbons having a low content of impurities and a low content of olefins, and solid coke, from waste plastic pyrolysis oil.
Type:
Grant
Filed:
February 7, 2024
Date of Patent:
November 12, 2024
Assignees:
SK INNOVATION CO., LTD., SK GEO CENTRIC CO., LTD.
Inventors:
Yong Woon Kim, Seo Yeong Kang, Soo Kil Kang, Min Gyoo Park, Young Moo Park, Min Woo Shin, Jae Hwan Lee, Jin Seong Jang, Sang Hwan Jo
Abstract: Provided are a method of preparing a modified propylene-based polymer using a radical initiator in a solution state, and a modified propylene-based polymer prepared by the method. Since the modified propylene-based polymer prepared by the method according to some embodiments has less xylene soluble content and includes a long chain branch (LCB) uniformly, it may have improved processability and/or productivity.
Type:
Application
Filed:
September 25, 2023
Publication date:
October 31, 2024
Applicants:
SK Innovation Co., Ltd., SK Geo Centric Co., Ltd.
Inventors:
Sung Jae Na, Myung Jun Park, Hyo Seung Park, Jun Won Baek
Abstract: A polymer composition for manufacturing a small to medium-sized container and which includes a high-density polyethylene (HDPE) recovered from a secondary battery separator. A polymer composition having excellent processability may be prepared by recycling a secondary battery separator. The polymer composition may be molded to manufacture an environmentally friendly small to medium-sized container, such as a small to medium-sized container, having excellent flexural strength, elongation, impact strength, and environmental stress crack resistance.
Type:
Grant
Filed:
May 31, 2023
Date of Patent:
October 29, 2024
Assignees:
SK Innovation Co., Ltd., SK Geo Centric Co., Ltd.
Inventors:
Hye Jin Lee, Jong Sang Park, Dae Sig Hong, Sang Mook Kang
Abstract: Provided is a lithium composite anode including a metal film, and lithium ion conductors and electron conductors dispersed on one surface of the metal film, wherein portions of the lithium ion conductors and electron conductors are impregnated into the metal film from the one surface of the metal film.
Type:
Grant
Filed:
July 23, 2018
Date of Patent:
October 29, 2024
Assignee:
SK INNOVATION CO., LTD.
Inventors:
Ju Young Kim, Young-Gi Lee, Kwang Man Kim, Dong Ok Shin
Abstract: A separator, a method of manufacturing the separator, and an electrochemical device including the separator with the separator including: a porous substrate; and an inorganic particle layer provided on at least one surface of the porous substrate, wherein the inorganic particle layer includes inorganic particles and a hydrolytic condensate of a silane compound.
Type:
Grant
Filed:
June 8, 2023
Date of Patent:
October 22, 2024
Assignees:
SK INNOVATION CO., LTD., SK IE TECHNOLOGY CO., LTD.
Inventors:
Chang Hee Lee, Won Sub Kwack, Tae Wook Kwon, Heung Taek Bae
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:
June 14, 2021
Date of Patent:
October 15, 2024
Assignees:
SK Innovation Co., Ltd., SK Inc.
Inventors:
Cheol Woo Kim, Min Kyung Seon, Yu Na Shim, Jae Hoon Kwak, Young Bom Kim, Jong Ho Lee, Jin Kyung Jo
Abstract: Provided is a separator for a lithium secondary battery including a porous substrate and a coating layer including a binder and inorganic particles formed on one surface or both surfaces of the porous substrate. The binder is a binder including: (a) a (meth)acrylamide-based monomer polymerization unit, (b) a (meth)acryl-based monomer polymerization unit containing a hydroxyl group, and (c) a polyfunctional (meth)acrylamide-based monomer polymerization unit. The separator according to the present invention provides a separator for a lithium secondary battery having improved adhesive strength between the inorganic particles and the separator, showing a decreased interfacial resistance characteristic, and showing an improved air permeability.
Type:
Grant
Filed:
September 1, 2021
Date of Patent:
October 8, 2024
Assignees:
SK Innovation Co., Ltd., SK ie technology Co., Ltd.
Abstract: Provided are a separator, a method of manufacturing the separator, and an electrochemical device including the separator. According to an embodiment of the present disclosure, a separator including a porous substrate and an inorganic particle layer provided on at least one surface of the porous substrate, the inorganic particle layer including inorganic particles, a hydrolytic condensate binder of a polar silane compound, and an aqueous polymer binder, wherein an amount of change in peel strength, ?P is 1.1 or more may be provided.
Type:
Grant
Filed:
June 8, 2023
Date of Patent:
October 8, 2024
Assignees:
SK INNOVATION CO., LTD., SK IE TECHNOLOGY CO., LTD.
Inventors:
Heung Taek Bae, Chang Hee Lee, Won Sub Kwack, Tae Wook Kwon
Abstract: Cathode active materials for lithium secondary batteries and lithium secondary batteries including the cathode active materials are disclosed. In some implementations, a cathode active material for a lithium secondary battery includes a lithium metal phosphate particle having a crystallite size in a range from 150 nm to 450 nm in a direction of a crystallographic plane (020) as measured by an X-ray diffraction (XRD) analysis. In some implementations, a lithium secondary battery includes a cathode including a cathode active material layer that includes a cathode active material for a lithium secondary battery, and an anode facing the cathode. In some implementations, an electrode crystallite size ratio defined by Equation 4 is in a range from 0.5 to 0.9.
Type:
Grant
Filed:
November 3, 2023
Date of Patent:
October 8, 2024
Assignees:
SK INNOVATION CO., LTD., SK ON CO., LTD.
Inventors:
Ji Yae Do, Min Suk Kang, Min Cheol Beak, Kwang Ho Lee, Wan Uk Choi
Abstract: The present invention relates to a polyimide-based film which does not substantially cause a mura or rainbow phenomenon and has excellent visibility, a window cover film including the same, and a display panel including the same.
Type:
Grant
Filed:
April 19, 2021
Date of Patent:
October 1, 2024
Assignees:
SK Innovation Co., Ltd., SK ie technology Co., Ltd.
Inventors:
Sun Kug Kim, Hye Ri Kim, Jin Su Park, Hyun Joo Song, Seung Min Jeon
Abstract: A cathode active material for a lithium secondary battery including a lithium-transition metal composite oxide particle is provided. A crystal grain size of the lithium-transition metal composite oxide particle measured by an XRD analysis is 250 nm or more, and an XRD peak intensity ratio of the lithium-transition metal composite oxide particle is 9.8% or less. A lithium secondary battery including the lithium-transition metal composite oxide particle and having improved life-span and rate capability is provided.
Type:
Grant
Filed:
June 3, 2021
Date of Patent:
September 10, 2024
Assignee:
SK INNOVATION CO., LTD.
Inventors:
Sang Han Lee, Min Gu Kang, Jeong Bae Yoon, Yong Hyun Cho
Abstract: The present disclosure relates to a method and system for producing refined hydrocarbons from waste plastic pyrolysis oil. The method and system for producing refined hydrocarbons from waste plastic pyrolysis oil according to the embodiments of the present disclosure may minimize formation of an ammonium salt (NH4Cl) and may prevent an adhesion phenomenon of impurity particles in a reactor in a refining process of waste plastic pyrolysis oil containing impurities including chlorine and nitrogen. In addition, the method and system for producing refined hydrocarbons according to the embodiments of the present disclosure may have excellent refining efficiency and may implement a long-term operation of a process because deactivation of a catalyst used in the process is prevented, and may produce refined hydrocarbons having a low content of impurities and a low content of olefins from waste plastic pyrolysis oil.
Type:
Grant
Filed:
January 31, 2024
Date of Patent:
September 10, 2024
Assignees:
SK INNOVATION CO., LTD., SK GEO CENTRIC CO., LTD.
Inventors:
Yong Woon Kim, Seo Yeong Kang, Soo Kil Kang, Min Gyoo Park, Young Moo Park, Min Woo Shin, Jae Hwan Lee, Jin Seong Jang, Sang Hwan Jo
Abstract: The present invention relates to: acid-resistant yeast to which lactic acid productivity is imparted, and in which the conversion of pyruvate into acetaldehyde is inhibited and, consequently, the ethanol production pathway is inhibited; and a method for producing lactic acid by using same.
Type:
Grant
Filed:
September 23, 2019
Date of Patent:
September 10, 2024
Assignee:
SK Innovation Co., Ltd.
Inventors:
Jae Yeon Park, Tae Young Lee, Ki Sung Lee