Patents by Inventor Sang Suk JUNG
Sang Suk JUNG 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).
-
Publication number: 20200106060Abstract: A secondary battery may include: an electrode assembly in which a positive electrode, a negative electrode, and a separator are wound or stacked; an insulator on at least one of an upper portion and a lower portion of the electrode assembly; and a battery case configured to accommodate the electrode assembly, the insulator, and an electrolyte and sealed by a cap assembly, wherein the insulator includes: a peripheral portion having a disk ring shape and made of a rigid material; and a central portion extending inward from an inner circumferential surface of the peripheral portion and including a textile fabric having high-temperature resistance.Type: ApplicationFiled: October 17, 2018Publication date: April 2, 2020Applicant: LG CHEM, LTD.Inventors: Hang Soo SHIN, Do Gyun KIM, Sang Suk JUNG, Byoung Gu LEE, Chan Bae KIM
-
Publication number: 20200091482Abstract: The disclosed secondary battery is capable of preventing a short-circuit pressure at which the safety vent is ruptured from being reduced due to deformation of the safety vent during assembly of the battery. The secondary battery of the present invention includes a can member accommodating an electrode assembly and a top cap assembly covering an opening of the can member. A safety vent is provided in the top cap assembly to discharge a gas when an inner pressure of the can member increases, wherein the safety vent includes a main body and a bending unit, in which an outer edge of the main body is bent, and wherein a buffering space is defined between the bending unit and the main body.Type: ApplicationFiled: November 7, 2018Publication date: March 19, 2020Applicant: LG Chem, Ltd.Inventors: Geon Woo Min, Hang Soo Shin, Do Gyun Kim, Sang Suk Jung, Chan Bae Kim
-
Patent number: 10559785Abstract: The present invention relates to a sealing apparatus sealing a sealing part of a battery case at which an electrode lead coupled to an electrode assembly is disposed. The sealing apparatus comprises: a thermal fusion member applying heat and a pressure to the sealing part of the battery case, at which the electrode lead is disposed, to seal the sealing part; and a temperature rising prevention member supported on a front end of the electrode lead to cool the sealing part through the electrode lead, thereby preventing the sealing part from increasing in temperature.Type: GrantFiled: September 29, 2016Date of Patent: February 11, 2020Assignee: LG Chem, Ltd.Inventors: Cho Long Kim, Yong Su Choi, Sang Hun Kim, Sang Suk Jung, Won Pill Hwang, Yong Kim
-
Patent number: 10532423Abstract: Provided is a battery pack. The battery pack includes a plurality of battery cells, each of which is provided with an electrode tab, an electrode lead including first and second lead parts respectively connected to the electrode tabs of the adjacent battery cells and a connection part connecting the first and second lead parts to each other, and a bus bar to which the first and second lead parts are coupled and connecting the plurality of battery cells to each other in series or parallel.Type: GrantFiled: November 1, 2016Date of Patent: January 14, 2020Assignee: LG CHEM, LTD.Inventors: Yong Kim, Yong Su Choi, Sang Hun Kim, Sang Suk Jung, Won Pill Hwang, Cho Long Kim
-
Publication number: 20190267593Abstract: To solve the above-described objects, a method for manufacturing a secondary battery according to an embodiment of the present invention comprises: manufacturing an electrode assembly in which electrodes and a separator are alternately stacked; inserting the electrode assembly into a battery case through an opening; covering the opening of the battery case; injecting an electrolyte into the battery case through an injection hole formed in the battery case; closing the injection hole; performing a pre-formation process; and applying external force to a switch of a gas discharge device formed on one surface of the battery case, thereby linearly moving a gasket of the gas discharge device and opening a gas discharge hole, such that a first gas generated in the battery case is discharged to an outside of the battery case during the performing of the pre-formation process.Type: ApplicationFiled: July 12, 2018Publication date: August 29, 2019Applicant: LG Chem, Ltd.Inventors: Jin Uk Do, Je Jun Lee, Sang Suk Jung, Min Ki Jo
-
Publication number: 20190229322Abstract: Disclosed are a method for manufacturing a secondary battery and an auxiliary case configured for use during manufacturing of the secondary battery. A gas generated in the secondary battery may be discharged to prevent an electrode assembly and the secondary battery from increasing in thickness, and an electrolyte may be efficiently injected into the secondary battery. A method for manufacturing a secondary battery includes: an accommodation step of accommodating an electrode assembly into a battery case; a connection step of connecting an auxiliary case to the battery case, the auxiliary case having an inner space therein; an injection step of injecting an electrolyte into the battery case and the auxiliary case; an electrolyte supply step of moving some of the electrolyte from the auxiliary case into the battery case; and a gas supply step of moving a gas from the battery case into the auxiliary case.Type: ApplicationFiled: May 23, 2018Publication date: July 25, 2019Applicant: LG Chem, Ltd.Inventors: Jin Uk Do, Je Jun Lee, Sang Suk Jung, Min Ki Jo
-
Patent number: 10319956Abstract: The present invention relates to a pouch case for a secondary battery and a pouch-type secondary battery comprising the same. More particularly, it relates to a pouch case for a secondary battery comprising an inner resin layer, a metal layer and an outer resin layer, wherein the inner resin layer comprises a porous non-woven fabric support having a plurality of pores and a polymer sealant filled in the pores of the non-woven fabric support; and a secondary battery comprising the same.Type: GrantFiled: November 19, 2015Date of Patent: June 11, 2019Assignee: LG CHEM, LTD.Inventors: Hyung Kyun Yu, Sang Hun Kim, Won Pill Hwang, Soo Ji Hwang, Sang Suk Jung
-
Patent number: 10230129Abstract: A secondary battery includes a pouch case provided with an accommodation part accommodating an electrode assembly and a gas pocket part collecting a gas generated in the accommodation part by the electrode assembly, and a clamp device coupled between the accommodation part and the gas pocket part to seal a gap between the accommodation part and the gas pocket part.Type: GrantFiled: October 20, 2016Date of Patent: March 12, 2019Assignee: LG CHEM, LTD.Inventors: Hyung Seok Han, Sang Suk Jung, Hyung Kyun Yu, Ki Hoon Paeng, Ji Hoon Lee, Soo Ji Hwang, Min Hyeong Kang
-
Patent number: 10199674Abstract: A secondary battery includes a pouch case provided with an accommodation part accommodating an electrode assembly and a gas pocket part collecting a gas generated in the accommodation part by the electrode assembly, and a clamp device coupled between the accommodation part and the gas pocket part to seal a gap between the accommodation part and the gas pocket part.Type: GrantFiled: October 20, 2016Date of Patent: February 5, 2019Assignee: LG CHEM, LTD.Inventors: Hyung Seok Han, Sang Suk Jung, Hyung Kyun Yu, Ki Hoon Paeng, Ji Hoon Lee, Soo Ji Hwang, Min Hyeong Kang
-
Publication number: 20180309096Abstract: Provided are a secondary battery that is capable of preventing a can member from corroding and a method for manufacturing the same. The secondary battery includes a can member defining an outer appearance of the secondary battery, a top cap assembly an opening of the can member, a gasket insulating the can member and the top cap assembly from each other, and a fracture part disposed on an inner circumference of the opening. The fracture part is blocked from the outside by the gasket.Type: ApplicationFiled: April 10, 2018Publication date: October 25, 2018Applicant: LG CHEM, LTD.Inventors: Do Gyun KIM, Je Jun LEE, Kwang Su HWANGBO, Sang Suk JUNG, Hang Soo SHIN, Gil Young LEE
-
Publication number: 20180287105Abstract: Disclosed is a secondary battery. According to the present invention, a charging/discharging pin is prevented from being separated from a top cap while the secondary is charged and discharged to improve safety during the charging/discharging of the secondary battery. According to an aspect of the present invention, the secondary battery includes a can accommodating an electrode assembly, a top cap provided on an upper portion of the can, and a groove defined in a surface of the top cap and having a shape that is recessed downward. When the top cap is viewed from an upper side, the groove has a closed curve shape.Type: ApplicationFiled: April 2, 2018Publication date: October 4, 2018Applicant: LG CHEM, LTD.Inventors: Gil Young LEE, Do Gyun KIM, Sang Suk JUNG
-
Publication number: 20180269434Abstract: The present disclosure relates to a pouch case for a secondary battery, and a secondary battery comprising the same, and in particular, to a pouch case for a secondary battery fabricated by laminating an inner resin layer, a middle resin layer and an outer resin layer, wherein the inner resin layer comprises a polyolefin-based resin and a thermosetting moisture absorber, and a secondary battery comprising the same.Type: ApplicationFiled: March 30, 2016Publication date: September 20, 2018Applicant: LG CHEM, LTD.Inventors: Hyung Kyun YU, Sang Hun KIM, Won Pill HWANG, Soo Ji HWANG, Sang Suk JUNG
-
Publication number: 20180190951Abstract: The present invention relates to a sealing apparatus sealing a sealing part of a battery case at which an electrode lead coupled to an electrode assembly is disposed. The sealing apparatus comprises: a thermal fusion member applying heat and a pressure to the sealing part of the battery case, at which the electrode lead is disposed, to seal the sealing part; and a temperature rising prevention member supported on a front end of the electrode lead to cool the sealing part through the electrode lead, thereby preventing the sealing part from increasing in temperature.Type: ApplicationFiled: September 29, 2016Publication date: July 5, 2018Applicant: LG CHEM, LTD.Inventors: Cho Long KIM, Yong Su CHOI, Sang Hun KIM, Sang Suk JUNG, Won Pill HWANG, Yong KIM
-
Publication number: 20180114964Abstract: The present invention relates to a battery cell. The battery cell comprises: an electrode assembly provided with an electrode tab; a case which accommodates the electrode assembly and of which at least a portion of an edge is sealed to provide a sealing surface; an electrode lead coupled to the electrode tab and led out of the case; a lead film disposed on each of top and bottom surfaces of the lead electrode disposed on the sealing surface of the case and coupled together with the sealing surface; and a main gas discharge tube disposed in the case and having one end buried in the lead film.Type: ApplicationFiled: June 14, 2016Publication date: April 26, 2018Applicant: LG CHEM, LTD.Inventors: Cho Long KIM, Yong Su CHOI, Sang Hun KIM, Sang Suk JUNG, Won Pill HWANG, Yong KIM
-
Publication number: 20180090780Abstract: The present invention relates to an apparatus for sealing a secondary battery. The apparatus comprises: a sealing member thermally fusing and sealing a sealing surface of a pouch in which an electrode assembly is accommodated; and a cooling member cooling the sealing surface.Type: ApplicationFiled: August 26, 2016Publication date: March 29, 2018Applicant: LG CHEM, LTD.Inventors: Sang Hun KIM, Yong Su CHOI, Sang Suk JUNG, Won Pill HWANG, Cho Long KIM, Yong KIM
-
Publication number: 20180062122Abstract: The present invention relates to a cap assembly for a secondary battery mounted on an opening of a can. The cap assembly comprises: 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 a gasket surrounding edges of the top cap, the safety element, and the safety vent and mounted on the opening of the can, wherein an impact absorption part absorbing an impact from the gasket is disposed between an inner wall of the gasket and an outer circumferential surface of the safety vent.Type: ApplicationFiled: June 27, 2016Publication date: March 1, 2018Applicant: LG Chem, Ltd.Inventors: Byoung Kook Lee, Hang Soo Shin, Do Gyun Kim, Je Jun Lee, Jun Tak Kim, Byoung Gu Lee, Sang Suk Jung
-
Publication number: 20170352844Abstract: The present invention relates to a pouch case for a secondary battery and a pouch-type secondary battery comprising the same. More particularly, it relates to a pouch case for a secondary battery comprising an inner resin layer, a metal layer and an outer resin layer, wherein the inner resin layer comprises a porous non-woven fabric support having a plurality of pores and a polymer sealant filled in the pores of the non-woven fabric support; and a secondary battery comprising the same.Type: ApplicationFiled: November 19, 2015Publication date: December 7, 2017Applicant: LG CHEM, LTD.Inventors: Hyung Kyun YU, Sang Hun KIM, Won Pill HWANG, Soo Ji HWANG, Sang Suk JUNG
-
Publication number: 20170288181Abstract: Provided are a lithium secondary battery, which includes an electrode assembly, a battery case accommodating the electrode assembly, a surface layer comprising an engineering plastic located on the outer side of the battery case, and lead terminals connected with the electrode assembly and drawn out of the battery case, and a method of fabricating the same.Type: ApplicationFiled: March 28, 2017Publication date: October 5, 2017Applicant: LG Chem, Ltd.Inventors: Won Pill Hwang, Yong Su Choi, Sang Hun Kim, Sang Suk Jung, Cho Long Kim, Yong Kim
-
Publication number: 20170170445Abstract: Provided is a battery pack. The battery pack includes a plurality of battery cells, each of which is provided with an electrode tab, an electrode lead including first and second lead parts respectively connected to the electrode tabs of the adjacent battery cells and a connection part connecting the first and second lead parts to each other, and a bus bar to which the first and second lead parts are coupled and connecting the plurality of battery cells to each other in series or parallel.Type: ApplicationFiled: November 1, 2016Publication date: June 15, 2017Applicant: LG CHEM, LTD.Inventors: Yong KIM, Yong Su CHOI, Sang Hun KIM, Sang Suk JUNG, Won Pill HWANG, Cho Long KIM
-
Publication number: 20170133707Abstract: Provided is a secondary battery. The secondary battery includes a pouch case provided with an accommodation part accommodating an electrode assembly and a gas pocket part collecting a gas generated in the accommodation part by the electrode assembly; and a clamp device coupled between the accommodation part and the gas pocket part to seal a gap between the accommodation part and the gas pocket part.Type: ApplicationFiled: October 20, 2016Publication date: May 11, 2017Applicant: LG CHEM, LTD.Inventors: Hyung Seok HAN, Sang Suk JUNG, Hyung Kyun YU, Ki Hoon PAENG, Ji Hoon LEE, Soo Ji HWANG, Min Hyeong KANG