Patents Assigned to SK INNOVATIONS CO., LTD.
  • Pouch case and secondary battery using the same
    Patent number: 11251479
    Abstract: Provided are a pouch case and a secondary battery using the same. The pouch case includes a first receiving part and a second receiving part which are concavely formed; a sealing part formed along an outer portion of the pouch case so as to surround the first receiving part and the second receiving part; and a partitioning part formed between the first receiving part and the second receiving part and protruding from a bottom surface of each receiving part to partition the first receiving part and the second receiving part. As one side surface of the secondary battery in which an electrode assembly is received and packaged in the pouch case is formed in a plane form, a flat side surface is in close contact with a cooling plate, thereby maximizing cooling efficiency of the secondary battery.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: February 15, 2022
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Tae Il Kim, Sung Yeop Kim, Won Seok Jeong
  • Secondary battery module
    Patent number: 11245141
    Abstract: A secondary battery module includes a plurality of pouch type secondary batteries stacked in parallel, and a cooling plate configured to cool the plurality of stacked pouch type secondary batteries, wherein each of the pouch type secondary batteries includes a sealing portion and a close contact portion formed by an exterior material in an outer periphery thereof, the sealing portion is formed at three of four sides of the pouch type secondary battery and the close contact portion is formed at the other side of the pouch type secondary battery, an extending portion protruding in a direction perpendicular to the close contact portion is formed at a portion of the sealing portion adjacent to the close contact portion, and the cooling plate is brought into contact with the close contact portions of the plurality of stacked pouch type secondary batteries and cools the close contact portions.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: February 8, 2022
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Seung Hoon Ju, Kwan Yong Kim, Dong Ju Kim, Sung Yeop Kim, Jin Go Kim, Tae Il Kim, Seung Noh Lee
  • Silicon compound
    Patent number: 11236116
    Abstract: The present disclosure relates to a silicon compound represented by Formula 1 below: wherein R1 to R6 are each independently selected from a hydrogen, a hydrocarbyl group and a non-hydrocarbyl group, L is a direct bond or hydrocarbylene, X is oxygen (O) or sulfur (S), Y and Z are each independently selected from NR7, O, and S, where R7 is a hydrogen, a hydrocarbyl group, or a non-hydrocarbyl group, and Y and Z are not simultaneously NR7, and A is an n-valent radical, where n is an integer of 1 to 6.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: February 1, 2022
    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
  • Oligomerization catalyst and method for preparing ethylene oligomer using same
    Patent number: 11235315
    Abstract: The present invention relates to an oligomerization catalyst including a transition metal or transition metal precursor, a halogen-substituted organic ligand, and a heteroatom ligand, and to a method for selectively preparing 1-hexene or 1-octene from ethylene using the catalyst.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: February 1, 2022
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Sang Ick Lee, Eun Jung Baek, Sun Young Kim, Hyo Seung Park, Min Seon Jung
  • SECONDARY BATTERY POUCH
    Publication number: 20220029231
    Abstract: Embodiments provide a secondary battery pouch including a sealing portion formed at an outside of the secondary battery pouch constituting a battery cell and configured to seal an inner space of the secondary battery pouch. The sealing portion includes: a first fusion portion having a smallest thickness in the sealing portion; and a second fusion portion having a largest thickness in the sealing portion. The first fusion portion and the second fusion portion are continuously formed at least one time alternately in a direction from an innermost side of the sealing portion in contact with the inner space of the secondary battery pouch to an outer side of the sealing portion.
    Type: Application
    Filed: July 22, 2021
    Publication date: January 27, 2022
    Applicant: SK INNOVATION CO., LTD.
    Inventors: Chang Mook HWANG, Sin Young MOON, Yoon Ji JO
  • POUCH CASE FOR SECONDARY BATTERY, SECONDARY BATTERY HAVING SAME, SECONDARY BATTERY MODULE, AND METHOD OF MANUFACTURING SECONDARY BATTERY
    Publication number: 20220021054
    Abstract: A pouch case according to an embodiment of the present disclosure includes: a forming portion having a predetermined depth, and allowing each of a first end surface and a second end surface of the electrode assembly to be received therein; a notch portion extending from each of opposite ends of the forming portion so as to have a depth gradually decreasing from a depth defined by the thickness of the electrode assembly received in the forming portion; and a storing portion covering a remaining portion other than a portion of the electrode assembly received in the forming portion. According to the embodiment of the present disclosure, by effectively controlling a protruding structure of the pouch case sealed on the first and second end surfaces of the electrode assembly received therein, it is possible to improve contact reliability between the stacked.
    Type: Application
    Filed: June 28, 2021
    Publication date: January 20, 2022
    Applicant: SK INNOVATION CO., LTD.
    Inventors: Hee Gyoung KANG, Tae Il KIM
  • Ligand, oligomerization catalyst comprising same, and method for producing ethylene oligomer by using oligomerization catalyst
    Patent number: 11224870
    Abstract: The present invention relates to a ligand, an ethylene oligomerization catalyst including the ligand, and a method for selectively producing 1-hexene or 1-octene from ethylene by using the catalyst. The ligand according to the present invention is a bis(diphenylphosphino)ethene with a phosphorus atom substituted with a fluoro-substituted phenyl, and when the ligand is used for ethylene oligomerization, the high temperature activity of the catalyst can be increased.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: January 18, 2022
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Hoseong Lee, Yongnam Joe
  • Method of producing lubricating base oil from feedstock comprising diesel fraction, and lubricating base oil produced thereby
    Patent number: 11225616
    Abstract: Disclosed is a method of producing a lubricating base oil, including providing a feedstock including a diesel fraction, subjecting the feedstock to catalytic dewaxing, and recovering a lubricating base oil from a product of the catalytic dewaxing. A lubricating base oil produced thereby and a lubricant product including the lubricating base oil are also provided.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: January 18, 2022
    Assignees: SK INNOVATION CO., LTD, SK LUBRICANTS CO., LTD.
    Inventors: Seung Eon Lee, Hak Mook Kim, Jin Hee Ok
  • Method of desalting crude oil with improved iron (Fe) reduction performance
    Patent number: 11225615
    Abstract: Provided is a method of desalting crude oil capable of effectively removing metal impurities in the crude oil and a rag layer which is formed in a crude oil desalting process.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: January 18, 2022
    Assignees: SK Innovation Co., Ltd., SK Energy Co., Ltd.
    Inventors: Yun Hee Lee, Joo Won Park
  • Lithium secondary battery
    Patent number: 11228023
    Abstract: A lithium secondary battery includes a cathode formed from a cathode active material including a first cathode active material particle and a second cathode active material particle, an anode and a separation layer interposed between the cathode and the anode. The first cathode active material particle includes a lithium metal oxide in which at least one metal forms a concentration gradient. The second cathode active material particle includes primary particles having different shapes or crystalline structures from each other.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: January 18, 2022
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Min Gu Kang, Soo Ho Kim, Young Hoon Do, Yong Hyun Cho
  • MINERAL BASE OIL HAVING IMPROVED LOW TEMPERATURE PROPERTY, METHOD FOR MANUFACTURING SAME, AND LUBRICATION OIL PRODUCT COMPRISING SAME
    Publication number: 20210403823
    Abstract: Proposed is a mineral lubricating base oil having improved low-temperature performance, in which the lubricating base oil has kinematic viscosity of 9.0 cSt or less (at 40° C.), kinematic viscosity of 2.5 cSt or less (at 100° C.), and a pour point of ?50° C. or less.
    Type: Application
    Filed: September 24, 2019
    Publication date: December 30, 2021
    Applicants: SK INNOVATION CO., LTD., SK LUBRICANTS CO., LTD.
    Inventors: Seung Eon LEE, Hak Mook KIM, Jin Hee OK, Kyung Seok NOH, Jun Soo PARK, Yong Rae CHO
  • Lithium secondary battery
    Patent number: 11211605
    Abstract: A lithium secondary battery includes a cathode formed from a cathode active material including a cathode active material particle having a specific concentration ratio, an anode; and a separation layer interposed between the cathode and the anode. The lithium secondary battery has improved formation discharge amount, formation discharge efficiency and power output.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: December 28, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Kyung Bin Yoo, Kook Hyun Han, Duck Chul Hwang
  • Sensing substrate and battery module including the same
    Patent number: 11201362
    Abstract: According to the present invention, a dummy terminal is provided on a sensing substrate and sensing substrate may be thus commonly used on both side surfaces of a battery module, and as a result, since only one type of sensing substrate provided with the dummy terminal needs to be manufactured instead of manufacturing two types of sensing substrates having different arrangements of the substrate terminals, mass productivity of the sensing substrate and the battery module including the same may be significantly improved.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: December 14, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Yong Uk Kim, Dae Won Kwon
  • METHOD AND APPARATUS FOR ESTIMATING LITHOFACIES BY LEARNING WELL LOGS
    Publication number: 20210381362
    Abstract: Disclosed are a method and apparatus for estimating lithofacies by learning well logs. The method includes a model formation step of forming lithofacies estimation model to output lithofacies corresponding to measured depth when the well logs are input based on train data sets including train data having values of multiple factors included in the well logs, the values being arranged corresponding to measured depth, and label data having lithofacies corresponding to measured depth as answers, and lithofacies estimation step of inputting unseen data having values of multiple factors included in well logs acquired from a well at which lithofacies are to be estimated, the values being arranged corresponding to measured depth, to the lithofacies estimation model to estimate lithofacies corresponding to measured depth.
    Type: Application
    Filed: April 1, 2021
    Publication date: December 9, 2021
    Applicant: SK INNOVATION CO., LTD.
    Inventors: Seungjoon CHA, Hee Jeong JANG, Youngki CHOI, Kyoung Jin LEE, Man Cheol KIM
  • METHOD AND APPARATUS FOR ESTIMATING S-WAVE VELOCITIES BY LEARNING WELL LOGS
    Publication number: 20210382191
    Abstract: Disclosed are a method and apparatus for estimating S-wave velocities by learning well logs, whereby the method includes a model formation step of forming an S-wave estimation model to output S-wave velocities corresponding to measured depth when the well logs are input based on train data sets including train data having values of multiple factors included in the well logs, the values being arranged corresponding to measured depth, and label data having S-wave velocities corresponding to measured depth as answers, and an S-wave velocity estimation step of inputting unseen data having values of multiple factors included in well logs acquired from a well at which S-wave velocities are to be estimated, the values being arranged corresponding to measured depth, to the S-wave estimation model to estimate S-wave velocities corresponding to measured depth.
    Type: Application
    Filed: February 1, 2021
    Publication date: December 9, 2021
    Applicant: SK INNOVATION CO., LTD.
    Inventors: Seungjoon CHA, Youngki CHOI, Hee Jeong JANG, Kyoung Jin LEE, Hyunjong CHO
  • Battery overcharging prevention device and battery overcharging prevention method using same
    Patent number: 11196273
    Abstract: A battery overcharge preventing device according to an embodiment of the present invention includes: a voltage distribution unit connected to both ends of at least one battery cell in a battery module including multiple battery cells, the voltage distribution unit being configured to distribute a voltage of the at least one battery cell according to a preset ratio; a voltage sensing unit operating so as to allow a control current to flow when the voltage distributed by the voltage distribution unit is greater than a preset reference voltage; and a second relay configured to block, by operation of the voltage sensing unit, operation of a first relay that establishes an electrical connection between the battery module and a charging module.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: December 7, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Soo Jeong Jeong, Yun Nyoung Lee
  • Battery cell assembly for secondary battery
    Patent number: 11196105
    Abstract: Disclosed are a battery cell assembly for a secondary battery, the battery cell assembly for a secondary battery including at least one battery cell; a first frame disposed on one side of the at least one battery cell; and a second frame which is disposed on the other side of the at least one battery cell so as to face the first frame and which is coupled to the first frame so as to protect the edge of the at least one battery cell together with the first frame. The present invention uses a frame type cell support which retains and supports at least one battery cell without separation, thereby providing a battery cell assembly for a secondary battery, namely a sub-battery module receiving body, having improved structural stability and assembly convenience, and a secondary battery including the same.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: December 7, 2021
    Assignee: SK Innovation Co., Ltd.
    Inventors: Tae Gu Lee, O Sung Kwon, Gyu Jin Chung, Young Ki Kim
  • Etching composition, method for etching insulating film of semiconductor devices using the same and method for preparing semiconductor devices
    Patent number: 11186772
    Abstract: An etching composition includes phosphoric acid, a silane compound comprising at least one silicon (Si) atom, and an ammonium salt represented by Formula 1 below: wherein: L1 to L3 are independently substituted or unsubstituted hydrocarbylene, R1 to R4 are independently hydrogen, a substituted or unsubstituted hydrocarbyl group, and Xn? is an n-valent anion, where n is an integer of 1 to 3.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: November 30, 2021
    Assignees: SK Innovation Co., Ltd., SK-Materials Co., Ltd.
    Inventors: Cheol Woo Kim, Kwang Kuk Lee, Jae Hoon Kwak, Young Bom Kim, Jung Ha Shin, Jong Ho Lee, Jin Kyung Jo
  • Composite separator for secondary battery
    Patent number: 11183736
    Abstract: Provided are a composite separator and an electrochemical device using the same. More specifically, provided is a composite separator including a coating layer for improving an adhesive property between an electrode and a separator.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: November 23, 2021
    Assignees: SK INNOVATION CO., LTD., SK IE TECHNOLOGY CO., LTD.
    Inventors: Kyu Young Cho, Won Sub Kwack, Yun Bong Kim, Hye Jin Kim, Su Ji Lee
  • Electrolyte for lithium secondary battery and lithium secondary battery including the same
    Patent number: 11177507
    Abstract: Provided is an electrolyte for a secondary battery including a lithium salt, a nonaqueous organic solvent, and a cyclic phosphate compound represented by the following Chemical Formula 2: wherein R1 to R6 and R? and R? are independently of one another hydrogen or C1-C7 alkyl; L2 is —(CR7R8)n—; R7 and R8 are independently of each other hydrogen or C1-C7 alkyl; and n is an integer of 1 to 3. Also provided is a lithium secondary battery including the electrolyte.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: November 16, 2021
    Assignee: SK Innovation Co., Ltd.
    Inventors: Sung Yon Oh, In Haeng Cho, Dong Gun Lee, Jin Haek Yang