Patents by Inventor Han Gab SONG
Han Gab SONG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240014504Abstract: A cap assembly has one side open and is configured to be coupled to an upper portion of a secondary battery can. The cap assembly includes a top cap to be coupled to the upper portion of the secondary battery can; a safety vent under the top cap and configured to be coupled to a distal end of the top cap; and a current interrupt device under the safety vent and having at least a portion that is in contact with the safety vent. The current interrupt device includes a material having a lower hardness than a hardness of the safety vent.Type: ApplicationFiled: October 21, 2022Publication date: January 11, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: Taejin KIM, Jisung PARK, Ujin YOON, Yunok KIM, Han Gab SONG
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Publication number: 20230032166Abstract: A system for manufacturing an electrode for a secondary battery is disclosed herein. In an embodiment, the system for manufacturing the electrode for the secondary battery comprises a supply roller for supplying a collector having a long sheet shape; an electrode active material coating device for applying an electrode active material to a surface of the collector supplied by the supply roller to manufacture an unfinished electrode; a rolling roller for rolling a surface of the unfinished electrode and adjusting a thickness of the electrode active material to manufacture a finished electrode; and an electrode quality inspection device for inspecting quality of the electrode through a surface roughness value of the rolling roller, a surface roughness value of the surface of the electrode, and a rolling load value of the rolling roller.Type: ApplicationFiled: October 6, 2022Publication date: February 2, 2023Applicant: LG Energy Solution, Ltd.Inventors: Nam Won Kim, Pil Kyu Park, Han Gab Song, Duck Joong Yun, Dae Hyun Kim, An Soo Jeong
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Patent number: 11539044Abstract: The present disclosure relates to a secondary battery electrode, a manufacturing method for the same, and an electrode assembly, and more particularly, to a secondary battery electrode, a manufacturing method for the same, and an electrode assembly having improved stability. In accordance with an exemplary embodiment, a secondary battery electrode includes a current collector that extends in one direction, a first active material layer provided on one surface of the current collector and including a first inclined portion and a first protruding portion, and a second active material layer provided on the other surface of the current collector and including a second inclined portion and a second protruding portion. In particular, a position of the second protruding portion is controlled on the second active material layer to be disposed at a position that is not directly opposite to the first inclined portion with respect to the current collector.Type: GrantFiled: August 20, 2018Date of Patent: December 27, 2022Assignee: LG ENERGY SOLUTION, LTD.Inventors: Nam Won Kim, Pil Kyu Park, Han Gab Song, Duck Joong Yun, Dea Hyun Kim, An Soo Jeong
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Patent number: 11495783Abstract: A system for manufacturing an electrode for a secondary battery is disclosed herein. In an embodiment, the system for manufacturing the electrode for the secondary battery comprises a supply roller for supplying a collector having a long sheet shape; an electrode active material coating device for applying an electrode active material to a surface of the collector supplied by the supply roller to manufacture an unfinished electrode; a rolling roller for rolling a surface of the unfinished electrode and adjusting a thickness of the electrode active material to manufacture a finished electrode; and an electrode quality inspection device for inspecting quality of the electrode through a surface roughness value of the rolling roller, a surface roughness value of the surface of the electrode, and a rolling load value of the rolling roller.Type: GrantFiled: June 27, 2018Date of Patent: November 8, 2022Inventors: Nam Won Kim, Pil Kyu Park, Han Gab Song, Duck Joong Yun, Dae Hyun Kim, An Soo Jeong
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Patent number: 11417906Abstract: A cylindrical lithium secondary battery according to the present invention can reduce gas explosion by preventing gas concentration from being concentrated only on the upper top cap vent by increasing the gas spouting passage through which the inner gas of the can is spouted by forming a rupture portion of a material different from that of the can member on a part of the cylindrical can member, and when the inside or outside of the battery is exposed to a high temperature, by making, a shape-based alloy member, which causes cracking of the can member by deformation, included a part of the can member, the gas is discharged through the can vent by the cracking of the can member to prevent explosion before the tap cap safety vent operates by the internal air pressure, and ignition that may be caused by heating by internal or external heat may be prevented.Type: GrantFiled: February 6, 2018Date of Patent: August 16, 2022Inventors: Han Gab Song, An Soo Jeong, Min Gyu Kim, Pil Kyu Park, So Ra Lee
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Patent number: 11196112Abstract: The present disclosure provides an insulation member having excellent mechanical properties having enough shock-absorbing effect in external shock and volume change in a battery and provides a cylindrical secondary battery including the insulation member. The insulation member according to the present disclosure has excellent mechanical properties in high temperature, is composed of polypropylene having narrow molecular weight, and has a fine pattern on the surface.Type: GrantFiled: January 25, 2018Date of Patent: December 7, 2021Inventors: Han Gab Song, Kyung Min Kim, Min Gyu Kim, Pil Kyu Park
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Patent number: 11127984Abstract: A lithium secondary battery is provided which includes a cylindrical jelly roll in which an electrode assembly having a stacked structure including a positive electrode is wound cylindrically, wherein a semi-cylindrical first winding core and second winding core are spaced apart from each other by a predetermined interval, the positive electrode includes a non-coated portion sheet having a positive electrode tab fused thereto and a coated portion sheet, and the non-coated portion sheet and the coated portion sheet are attached by a tape to provide the positive electrode, one end of the positive electrode is positioned at the core portion of the cylindrical jelly roll, and a portion of the positive electrode having the tape is positioned around a circumference of the winding core member such that it avoids a portion where the first winding core is spaced apart from the second winding core by the predetermined interval.Type: GrantFiled: June 26, 2018Date of Patent: September 21, 2021Assignee: LG CHEM, LTD.Inventors: Jong-Hoon Park, Joo-Hwan Sung, Han-Gab Song, Pil-Kyu Park, Sung-Min Park
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Patent number: 11072007Abstract: The present invention relates to a system for manufacturing an electrode for a secondary battery. The system for manufacturing the electrode for the secondary battery comprises a supply roller supplying a collector having a long sheet shape; an electrode active material coating device applying an electrode active material to a surface of the collector supplied by the supply roller to manufacture an unfinished electrode; a rolling roller rolling a surface of the unfinished electrode and adjusting a thickness of the electrode active material to manufacture a finished electrode; and an electrode quality inspection device inspecting quality of the electrode through a surface roughness value of the rolling roller and a surface roughness value of the electrode.Type: GrantFiled: July 3, 2018Date of Patent: July 27, 2021Inventors: An Soo Jeong, Pil Kyu Park, Han Gab Song, Duck Joong Yun, Dae Hyun Kim, Nam Won Kim
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Patent number: 11060961Abstract: Apparatus and methods of evaluating brittleness by measuring force applied to an electrode specimen by simulating a wound state of a jelly-roll type electrode assembly are disclosed herein. In an embodiment, a brittleness evaluation apparatus includes a jig unit, a driving unit, and a measurement analyzing unit. The jig unit includes two jigs, a groove formed between the jigs, a pressing plate, and guides. The jigs facing each other and have top surfaces formed in a horizontal plane and configured to receive a specimen arranged on the top surfaces along a length direction extending between and along the top surfaces. The pressing plate is arranged perpendicular to the length direction and configured to cause the specimen to bend by descending into the groove. The guides are located on each of the top surfaces of the jigs and configured to prevent distortion of the specimen during descent of the pressing plate.Type: GrantFiled: September 7, 2018Date of Patent: July 13, 2021Inventors: An-Soo Jeong, Nam-Won Kim, Young-Tae Kim, Pil-Kyu Park, Han-Gab Song, Min-Gyu Kim
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Patent number: 11043669Abstract: The present invention relates to a secondary battery. The secondary battery comprises an electrode assembly in which an electrode and a separator are alternately stacked and wound, wherein the electrode comprises a collector, a first coating layer in which an electrode active material is applied to a surface of the collector, and a second coating layer in which the electrode active material is applied to the outside of the first coating layer, wherein an end of the second coating layer has a length less than an end of first coating layer in a winding direction of the electrode, and a stepped portion occurs between the end of the first coating layer and the end of the second coating layer in a direction outward from a winding center.Type: GrantFiled: June 1, 2018Date of Patent: June 22, 2021Inventors: Nam Won Kim, Pil Kyu Park, Han Gab Song, An Soo Jeong
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Patent number: 10996150Abstract: A jig assembly for measuring the tensile strength of an electrode at a bend having a similar radius to a core, an apparatus for measuring bending tensile strength including the jig assembly, and a method for measuring bending tensile strength that measures the tensile strength of an electrode at a bend having a similar radius to a core using the apparatus for measuring bending tensile strength are provided. The jig assembly of the present disclosure includes a fixing unit configured to fix a first end part of a sample, and a plate shaped bending jig configured to provide a one point bend to a lengthwise direction cross section of the sample and to guide a second end part of the sample toward a tensile testing load unit. According to the present disclosure, it is possible to measure the tensile strength of the electrode under a similar condition to a winding process before the electrode is used in real winding applications.Type: GrantFiled: June 27, 2018Date of Patent: May 4, 2021Assignee: LG CHEM, LTD.Inventors: An-Soo Jeong, Young-Tae Kim, Nam-Won Kim, Min-Gyu Kim, Pil-Kyu Park, Han-Gab Song
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Publication number: 20210126249Abstract: The present disclosure relates to a secondary battery electrode, a manufacturing method for the same, and an electrode assembly, and more particularly, to a secondary battery electrode, a manufacturing method for the same, and an electrode assembly having improved stability. In accordance with an exemplary embodiment, a secondary battery electrode includes a current collector that extends in one direction, a first active material layer provided on one surface of the current collector and including a first inclined portion and a first protruding portion, and a second active material layer provided on the other surface of the current collector and including a second inclined portion and a second protruding portion. In particular, a position of the second protruding portion is controlled on the second active material layer to be disposed at a position that is not directly opposite to the first inclined portion with respect to the current collector.Type: ApplicationFiled: August 20, 2018Publication date: April 29, 2021Applicant: LG CHEM, LTD.Inventors: Nam Won KIM, Pil Kyu PARK, Han Gab SONG, Duck Joong YUN, Dea Hyun KIM, An Soo JEONG
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Patent number: 10818959Abstract: The present invention relates to a cap assembly formed of a composite of cap assembly ceramic for the cylindrical battery and mounted on a top end portion of the cylindrical secondary battery in which an electrode assembly is placed in a cylindrical can, which includes a safety vent having a predetermined notch configured to be ruptured by high pressure gas generated in the battery, a current interrupt device coupled to a lower end of the safety vent and blocking a current when an internal pressure of the battery rises, and a gasket for the current interrupt device surrounding an outer circumferential surface of the current interrupt device, wherein the gasket for the current interrupt device comprises a polymer resin having a melting point of 250° C. or more and a heat deflection temperature (HDT) of 200° C. or more, and a cylindrical secondary battery including the same.Type: GrantFiled: July 21, 2016Date of Patent: October 27, 2020Assignee: LG Chem, Ltd.Inventors: Pil Kyu Park, Joo Hwan Sung, Jung Koo Kang, Je Jun Lee, Han Gab Song, Yeo Min Yoon
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Publication number: 20200225134Abstract: Apparatus and methods of evaluating brittleness by measuring force applied to an electrode specimen by simulating a wound state of a jelly-roll type electrode assembly are disclosed herein. In an embodiment, a brittleness evaluation apparatus includes a jig unit, a driving unit, and a measurement analyzing unit. The jig unit includes two jigs, a groove formed between the jigs, a pressing plate, and guides. The jigs facing each other and have top surfaces formed in a horizontal plane and configured to receive a specimen arranged on the top surfaces along a length direction extending between and along the top surfaces. The pressing plate is arranged perpendicular to the length direction and configured to cause the specimen to bend by descending into the groove. The guides are located on each of the top surfaces of the jigs and configured to prevent distortion of the specimen during descent of the pressing plate.Type: ApplicationFiled: September 7, 2018Publication date: July 16, 2020Applicant: LG Chem, Ltd.Inventors: An-Soo Jeong, Nam-Won Kim, Young-Tae Kim, Pil-Kyu Park, Han-Gab Song, Min-Gyu Kim
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Publication number: 20200058962Abstract: The present invention relates to a secondary battery. The secondary battery comprises an electrode assembly in which an electrode and a separator are alternately stacked and wound, wherein the electrode comprises a collector, a first coating layer in which an electrode active material is applied to a surface of the collector, and a second coating layer in which the electrode active material is applied to the outside of the first coating layer, wherein an end of the second coating layer has a length less than an end of first coating layer in a winding direction of the electrode, and a stepped portion occurs between the end of the first coating layer and the end of the second coating layer in a direction outward from a winding center.Type: ApplicationFiled: June 1, 2018Publication date: February 20, 2020Applicant: LG Chem, Ltd.Inventors: Nam Won Kim, Pil Kyu Park, Han Gab Song, An Soo Jeong
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Patent number: 10454081Abstract: A battery pack according to the present invention comprises a battery cell and a battery case accommodating the battery cell, wherein the battery case comprises an inner case accommodating the battery cell, an outer case disposed outside the inner case, and a cooling member between the inner and outer cases to indirectly cool the battery cell by using cool air generated by cooling the inner and outer cases.Type: GrantFiled: September 12, 2016Date of Patent: October 22, 2019Assignee: LG Chem, Ltd.Inventor: Han Gab Song
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Publication number: 20190319256Abstract: A system for manufacturing an electrode for a secondary battery is disclosed herein. In an embodiment, the system for manufacturing the electrode for the secondary battery comprises a supply roller for supplying a collector having a long sheet shape; an electrode active material coating device for applying an electrode active material to a surface of the collector supplied by the supply roller to manufacture an unfinished electrode; a rolling roller for rolling a surface of the unfinished electrode and adjusting a thickness of the electrode active material to manufacture a finished electrode; and an electrode quality inspection device for inspecting quality of the electrode through a surface roughness value of the rolling roller, a surface roughness value of the surface of the electrode, and a rolling load value of the rolling roller.Type: ApplicationFiled: June 27, 2018Publication date: October 17, 2019Applicant: LG Chem, Ltd.Inventors: Nam Won Kim, Pil Kyu Park, Han Gab Song, Duck Joong Yun, Dae Hyun Kim, An Soo Jeong
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Publication number: 20190265135Abstract: A jig assembly for measuring the tensile strength of an electrode at a bend having a similar radius to a core, an apparatus for measuring bending tensile strength including the jig assembly, and a method for measuring bending tensile strength that measures the tensile strength of an electrode at a bend having a similar radius to a core using the apparatus for measuring bending tensile strength are provided. The jig assembly of the present disclosure includes a fixing unit configured to fix a first end part of a sample, and a plate shaped bending jig configured to provide a one point bend to a lengthwise direction cross section of the sample and to guide a second end part of the sample toward a tensile testing load unit. According to the present disclosure, it is possible to measure the tensile strength of the electrode under a similar condition to a winding process before the electrode is used in real winding applications.Type: ApplicationFiled: June 27, 2018Publication date: August 29, 2019Applicant: LG CHEM, LTD.Inventors: An-Soo JEONG, Young-Tae KIM, Nam-Won KIM, Min-Gyu KIM, Pil-Kyu PARK, Han-Gab SONG
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Publication number: 20190260089Abstract: A lithium secondary battery is provided which includes a cylindrical jelly roll in which an electrode assembly having a stacked structure including a positive electrode is wound cylindrically, wherein a semi-cylindrical first winding core and second winding core are spaced apart from each other by a predetermined interval, the positive electrode includes a non-coated portion sheet having a positive electrode tab fused thereto and a coated portion sheet, and the non-coated portion sheet and the coated portion sheet are attached by a tape to provide the positive electrode, one end of the positive electrode is positioned at the core portion of the cylindrical jelly roll, and a portion of the positive electrode having the tape is positioned around a circumference of the winding core member such that it avoids a portion where the first winding core is spaced apart from the second winding core by the predetermined interval.Type: ApplicationFiled: June 26, 2018Publication date: August 22, 2019Applicant: LG CHEM, LTD.Inventors: Jong-Hoon PARK, Joo-Hwan SUNG, Han-Gab SONG, Pil-Kyu PARK, Sung-Min PARK
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Patent number: 10388980Abstract: The present invention provides a cap assembly mounted on an opening of a can, the cap assembly comprising: a top cap; a safety element disposed on a lower portion of the top cap; a safety vent disposed on a lower portion of the safety element and having a cut part; a down cap disposed on a lower portion of the safety vent; a gasket surrounding edges of the top cap, the safety element, the safety vent, and the down cap and mounted on the opening of the can; and a lifting guide part disposed between the safety vent and the down cap to lift the safety vent while being expanded by a high-temperature gas transferred from the inside of the can and thereby to cut the cut part so that the high-temperature gas is released to the outside.Type: GrantFiled: August 22, 2016Date of Patent: August 20, 2019Assignee: LG CHEM, LTD.Inventor: Han Gab Song