Patents Assigned to SK Innovation Co., Ltd.
  • Method for producing carbon nanotubes
    Patent number: 9862611
    Abstract: Disclosed is a method for producing a carbon nanotube, including supplying a carbon nanotube and a catalyst to a reactor in a predetermined order or simultaneously and fluidizing them to form a fluidized bed, wherein a difference in minimum fluidization velocities (?V) according to Formula 1 below is 5 cm/s or less: [Formula 1] Difference in minimum fluidization velocities (?V, cm/s)=|Vcat?Vcntproduct| wherein Vcat is a minimum fluidization velocity of catalyst, and VCNTproduct is a minimum fluidization velocity of carbon nanotubes supplied to a reactor in the step of forming a fluidized bed.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: January 9, 2018
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Ji-Min Kim, Min-Ji Sung, Yong-Tak Kwon, Sang-Uk Kim, Ok-Youn Kim, Sung-Real Son, Jung-Yul Son
  • Micro-porous hybrid film having electro-chemical stability and method for preparing the same
    Patent number: 9853273
    Abstract: Provided are a micro-porous hybrid film and a method for preparing the same, and more particularly, a micro-porous hybrid film capable of improving reliability of a battery by simultaneously improving thermal stability at a high temperature and water properties, and a method for preparing the same. In addition, the present invention relates to a micro-porous hybrid film suitable for a separator of a high capacity/high output lithium secondary battery capable of increasing production stability, long term stability, and performance of the battery by improving adhesive force between a micro-porous film and a coating layer and permeability and minimizing a water content by the coating layer.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: December 26, 2017
    Assignee: SK Innovation Co., Ltd.
    Inventors: Yong Kyoung Kim, Dong Jin Joo, Young Jun Woo, Jae Woong Kim, Kyu Young Cho, Jung Moon Sung, Dong Man Cho
  • Oleaginous microorganism disruption process using supersonic disperser and method for producing bio-oil using same
    Patent number: 9850509
    Abstract: Provided are an oleaginous microorganism disruption process using a supersonic disperser and a method for producing bio-oil using the same. The method for producing bio-oil according to the present invention induces a cell disruption of oleaginous microorganisms without a separate drying process, thereby providing a method for continuously producing bio-oil in an economical and simple manner. In addition, the method of the present invention induces a cell disruption of oleaginous microorganisms without a heating process, thereby producing bio-oil without a change in physical properties due to the heat.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: December 26, 2017
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Chang Kuk Kim, Yeon Hwa La, Joong Min Park, Hong Seung Yeon, Cher Hee Park
  • Natural-superlattice-structured thermoelectric material
    Patent number: 9847469
    Abstract: Provided is a thermoelectric material satisfying (MX)1+a(TX2)n and having a superlattice structure, wherein M is at least one element selected from the group consisting of Group 13, Group 14, and Group 15, T is at least one element selected from Group 5, X is a chalcogenide element, a is a real number satisfying 0<a<1, and n is a natural number of 1 to 3.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: December 19, 2017
    Assignees: SK INNOVATION CO., LTD., UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Hyeung Jin Lee, Yong Rae Cho, Jong-Soo Rhyee, Yoo Jang Song, Jin Hee Kim
  • Method of producing estolide having high structural stability
    Patent number: 9845280
    Abstract: Disclosed is a method of producing an estolide having high structural stability, including: a) preparing a fatty acid mixture from biomass-derived oil; b) separating the fatty acid mixture into a C16 fatty acid and a C18 fatty acid; c) converting the C18 fatty acid into a C18 or C17 linear internal olefin; and d) subjecting the C18 or C17 linear internal olefin and the C16 fatty acid to an estolide reaction, thus obtaining an estolide.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: December 19, 2017
    Assignees: SK INNOVATION CO., LTD., SK LUBRICANTS CO., LTD.
    Inventors: Hee Jung Jeon, Jong su Lee, Yong Woo Kim
  • Apparatus and method for estimating internal resistance of battery
    Patent number: 9846195
    Abstract: Provided are an apparatus and a method for estimating internal resistance of a battery pack. The apparatus includes: a voltage sensing unit that measures a voltage value of the battery pack; a current sensing unit that measures a current value of the battery pack; a temperature sensing unit that measures a temperature value of the battery pack; and a microprocessor unit (MCU) that calculates the internal resistance of the battery pack using values transferred from the voltage sensing unit, the current sensing unit, and the temperature sensing unit.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: December 19, 2017
    Assignee: SK Innovation Co., Ltd.
    Inventors: Sungeun Lee, Shanshan Jin, Siyoung Jang, Hyungjoon Kim
  • Electrolyte for lithium secondary battery and lithium secondary battery containing the same
    Patent number: 9847553
    Abstract: Provided are an electrolyte for a lithium secondary battery, and a lithium secondary battery containing the same, wherein the electrolyte for a secondary battery has significantly excellent high-temperature stability, low-temperature discharge capacity, and life cycle characteristics.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: December 19, 2017
    Assignee: SK Innovation Co., Ltd.
    Inventors: Jin Sung Kim, Cheol Woo Kim, Seung Yon Oh, Kwang Kuk Lee, Seong Il Lee
  • Battery module
    Patent number: 9843032
    Abstract: Provided is a battery module in which at least one battery cell including an electrode tab including an anode tab and a cathode tab is stacked, including: a sensing assembly installed in a space between the anode tab and the cathode tab at a side of the battery module at which the electrode tab is positioned; and a terminal installed at the side of the battery module at which the electrode tab is positioned and connected to each of the electrode tabs of the battery cells positioned at the outermost portions, wherein the terminal is bonded and connected to a surface positioned at an inner side of the battery module in both sides of the anode tab and the cathode tab.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: December 12, 2017
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Young Ki Kim, Won Jun Lee, Seung Bum Kim
  • Ethylene-alpha olefin-diene resin blend composition and method for preparing the same
    Patent number: 9834668
    Abstract: The present invention relates to an EPDM resin blend composition, which includes a first EPDM resin matrix and a second EPDM resin, wherein a ratio (Mw1/Mw2) of a weight average molecular weight of the first EPDM resin matrix to a weight average molecular weight of the second EPDM resin ranges from 0.75 to 1.33, and the second EPDM resin has a narrower molecular weight distribution (Mw/Mn) than the first EPDM resin matrix, and to a method for preparing the same.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: December 5, 2017
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Ju-Eun Jung, Sung-Kwan Kim, Yong-Rak Moon, So-Young Park
  • Positive electrode active material for lithium secondary battery and method for preparing the same
    Patent number: 9825294
    Abstract: Provided is a method for preparing a positive electrode active material for a lithium secondary battery, the method comprising: mixing and reacting a nickel source, a cobalt source, and an aluminum source, ammonia water, sucrose, and a pH adjusting agent to prepare a mixed solution; drying and oxidizing the mixed solution to prepare a positive electrode active material precursor; and adding a lithium source to the positive electrode active material precursor and firing them to prepare a positive electrode active material for a lithium secondary battery.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: November 21, 2017
    Assignee: SK Innovation Co., Ltd.
    Inventors: Sung Woo Oh, Hee Young Sun, Yu Rim Do, Hyung Bok Lee
  • Ethylene tetramerization catalyst systems and method for preparing 1-octene using the same
    Patent number: 9802874
    Abstract: Disclosed herein is a method of preparing 1-octene at high activity and high selectivity while stably maintaining reaction activity by tetramerizing ethylene using a chromium-based catalyst system comprising a transition metal or a transition metal precursor, a cocatalyst, and a P—C—C—P backbone structure ligand represented by (R1)(R2)P—(R5)CHCH(R6)—P(R3)(R4).
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: October 31, 2017
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Taek Kyu Han, Myung Ahn Ok, Sung Seok Chae, Sang Ook Kang, Jae Ho Jung
  • Microporous polyolefin composite film having excellent heat resistance and thermal stability and method for manufacturing the same
    Patent number: 9799869
    Abstract: The following disclosure relates to a microporous polyolefin composite film having excellent heat resistance and thermal stability, and a method for manufacturing the same. More particularly, the present invention relates to a microporous polyolefin composite film capable of improving stability and reliability of a battery by heat sealing an edge of a microporous film provided with a coating layer that includes a polymer binder and inorganic particles, and a method for manufacturing the same.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: October 24, 2017
    Assignee: SK Innovation Co., Ltd.
    Inventors: Yong Kyoung Kim, Jae Woong Kim, Young Jun Woo, Jang-Weon Rhee, Dong Jin Joo
  • Method for fabricating a nano structure
    Patent number: 9793123
    Abstract: Provided are a nano structure, a fabrication method thereof, and an application device thereof. The method for fabricating a nano structure includes: forming a substrate; forming a plurality of linkers over the substrate; forming a plurality of metal ions over the linkers; and forming one or more metallic nanoparticles over the linkers.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: October 17, 2017
    Assignee: SK INNOVATION CO., LTD.
    Inventor: Jun-Hyung Kim
  • Electrode assembly of secondary battery
    Patent number: 9786889
    Abstract: Provided is an electrode assembly of a secondary battery, including: a first electrode unit and a second electrode unit; a separation membrane interposed between the first electrode unit and the second electrode unit; and a first coating unit having an insulating member which is made of a metal oxide material and is coated along front and rear edge portions of the first electrode unit.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: October 10, 2017
    Assignee: SK INNOVATION CO., LTD.
    Inventor: Min Seong Kim
  • Method of preparing an activated EU-2 zeolite
    Patent number: 9782760
    Abstract: Disclosed herein is a method of making activated EU-2 zeolite, including: pores having a diameter of 30 to 40 ? while maintaining the crystal structure of the EU-2 zeolite; and pores having a diameter of 40 to 200 ?, wherein the volume of the pores having a diameter of 30 to 40 ? is 0.01 to 0.06 cc/g, and the volume of the pores having a diameter of 40 to 200 ? is 0.07 to 0.4 cc/g.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: October 10, 2017
    Assignees: SK INNOVATION CO., LTD., SK LUBRICANTS CO., LTD.
    Inventors: Yoon Kyung Lee, Seung Woo Lee, Jae Suk Choi, Tae Jin Kim, Do Woan Kim, Seon Ju Lim
  • Complex and preparation method of poly(alkylene carbonate) using the same
    Patent number: 9777031
    Abstract: The present invention is directed to a novel complex synthesized from a Salen-type ligand. The novel complex contains a quaternary ammonium salt. The present invention is also directed to a preparation method of a copolymer of carbon dioxide and epoxide using the complex synthesized from a Salen-type ligand as a catalyst.
    Type: Grant
    Filed: July 4, 2014
    Date of Patent: October 3, 2017
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Jong Chan Kim, Han Sol Lee, Hyo Seung Park, Je Ho Lee, Jeong Hyun Noh, Jong Ho Lim, Jeon Koo Lee
  • Polyalkylene carbonate resin composition having an interpenetrating crosslinked structure
    Patent number: 9777153
    Abstract: A polyalkylene carbonate resin composition with interpenetrating network structure includes an aliphatic polycarbonate obtained through a reaction of carbon dioxide with at least one epoxide compound selected from the group consisting of (C2-C10)alkylene oxide substituted or unsubstituted with halogen or alkoxy, (C4-C20)cycloalkylene oxide substituted or unsubstituted with halogen or alkoxy, and (C8-C20)styrene oxide substituted or unsubstituted with halogen, alkoxy, alkyl or aryl, at least one compound selected from a polyol compound, an epoxy compound and an acryl compound, and a curing agent for polymerization or networking.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: October 3, 2017
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Seung Gweon Hong, Jae Young Park, Hye Lim Kim, Ji Yeon Choi, Kwang Jin Chung, Myung Ahn Ok
  • Current collector for battery and secondary battery comprising the same
    Patent number: 9780380
    Abstract: Provided is a current collector including a laminate in which a conductive substrate and an insulator are laminated, wherein the insulator is a porous insulator formed with an open pore channel penetrating through the insulator. The current collector may be used as a current collector for an electrode of a secondary battery and stably maintain capacity of the secondary battery at the time of repeating charge and discharge cycles.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: October 3, 2017
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Je Hyun Chae, Jeong Soo Kim, Won Sang Koh, Seung Ok Lee, Young Shol Kim
  • System and method for controlling frequency
    Patent number: 9780565
    Abstract: Provided are a system and a method for controlling a frequency. The system for controlling the frequency includes: at least one power supplying unit generating power; at least one systematic unit consuming the power generated from the power supplying unit; at least one standby power unit storing the power generated from the power supplying unit and including at least one storage device; and at least one grid unit connecting the power supplying unit, the systematic unit, and the standby power unit to one another and controlling a frequency of the systematic unit.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: October 3, 2017
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Jin Young Choi, Eun Sung Park
  • Energy storing apparatus
    Patent number: 9774018
    Abstract: Provided is an energy storage apparatus capable of freely adjusting an energy storage capacity by including a integrated battery platform including a battery, a power relay assembly, and a battery management system; and a battery tray including a battery and coupled to the battery platform to connect the batteries in series with each other.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: September 26, 2017
    Assignee: SK Innovation Co., Ltd.
    Inventors: Hyunseok Kim, Taewoo Kim, Woojin Lee, Jaihyun Choi, Jeehoon Jeon