Patents by Inventor Sang Bong Nam
Sang Bong Nam 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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Patent number: 9947957Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulating member is mounted on the top of the jelly-roll and the insulating member includes a perforated inlet enabling gas discharge and penetration of electrode terminals and a plurality of pores with a diameter of 100 ?m or less provided over the entire surface of the insulating member.Type: GrantFiled: May 31, 2013Date of Patent: April 17, 2018Assignee: LG Chem, Ltd.Inventors: Do Gyun Kim, Dong-Myung Kim, Dong Sub Lee, Sang Bong Nam, Sang Sok Jung
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Patent number: 9601746Abstract: A method for injecting an electrolyte includes heating a case in which an electrode assembly is accommodated, and injecting an electrolyte into the case after the heating of the case. Here, the heating of the case may include heating the case through high-frequency induction heating using a coil. Also, the coil may have a spiral shape to surround the outside of the case along a longitudinal direction of the case.Type: GrantFiled: July 4, 2014Date of Patent: March 21, 2017Assignee: LG CHEM, LTD.Inventors: Dong Sub Lee, Sin Young Park, Hang Seob Yoon, Hyun Suk Kim, Jeoung Soo Kim, Sang Bong Nam, Jun Ho Moon, Hyang Mok Lee
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Patent number: 9590214Abstract: The present invention relates to a secondary battery structure. The secondary battery structure includes: a can; an electrode assembly accommodated in the can, the electrode assembly including a cathode tab and an anode tab; a cap plate sealing an opened upper end of the can; and an upper insulator disposed between the can and the cap plate, the upper insulator having a cathode tab hole for the cathode tab, an anode tab hole for the anode tab, and an injection/impregnation hole for injecting and impregnating, wherein each of the cathode tab hole, the anode tab hole, and the injection/impregnation hole extends in a length or width direction of the upper insulator and is symmetrical with respect to at least one of a line (a) that equally divides the upper insulator in a width direction and a line (b) that equally divides the upper insulator in a length direction.Type: GrantFiled: June 2, 2014Date of Patent: March 7, 2017Assignee: LG CHEM, LTD.Inventors: Sang Jin Woo, Hang Seob Yoon, Tae Won Kang, Jeoung Soo Kim, Sin Young Park, Sang Bong Nam, Hyang Mok Lee
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Patent number: 9299967Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on top of the jelly-roll includes a perforated inlet enabling gas discharge and penetration of electrode terminals, a plurality of fine pores having a size that allows permeation of an electrolyte solution, but does not allow permeation of foreign materials, and a plurality of strip or bead shaped protrusions disposed in transverse and/or longitudinal directions on one or both surfaces of the insulator.Type: GrantFiled: June 4, 2012Date of Patent: March 29, 2016Assignee: LG Chem, Ltd.Inventors: Do Gyun Kim, Dong-Myung Kim, Sang Bong Nam, Dong Sub Lee, Jun Ho Moon, Sang Sok Jung
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Patent number: 9276286Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on the top of the jelly-roll includes a molded article made of a polymer resin or a polymer composite and a plurality of fine pores is perforated through the molded article.Type: GrantFiled: February 11, 2014Date of Patent: March 1, 2016Assignee: LG CHEM, LTD.Inventors: Do Gyun Kim, Dong-Myung Kim, Dong Sub Lee, Sang Bong Nam, Sang Sok Jung
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Patent number: 9263725Abstract: Provided are a secondary battery case and a method for manufacturing a secondary battery. The secondary battery case includes a can accommodating an electrode assembly and a top cap sealing an upper opening of the can. The top cap includes a top plate sealing the upper opening of the can, a filling hole passing through the top plate to fill an electrolyte into the can, and a protrusion protruding from the top plate on an upper portion of the filling hole. The protrusion is press-fitted into the filling hole to seal the filling hole. According to the present invention, the protrusion may protrude from the top plate. Thus, the protrusion may be press-fitted into the filling hole and thus broken to seal the filling hole. Therefore, the member for sealing the filling hole may be integrated with the top plate to reduce manufacturing costs and simplify a manufacturing process.Type: GrantFiled: May 21, 2014Date of Patent: February 16, 2016Assignee: LG CHEM, LTD.Inventors: Sin Young Park, Jeoung Soo Kim, Dong Sub Lee, Sang Bong Nam, Hang Seob Yoon, Hyang Mok Lee, Dong Hee Seo, Hyun Kyung Ko, Sang Jin Woo
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Publication number: 20160036034Abstract: A method for injecting an electrolyte includes heating a case in which an electrode assembly is accommodated, and injecting an electrolyte into the case after the heating of the case. Here, the heating of the case may include heating the case through high-frequency induction heating using a coil. Also, the coil may have a spiral shape to surround the outside of the case along a longitudinal direction of the case.Type: ApplicationFiled: July 4, 2014Publication date: February 4, 2016Applicant: LG CHEM, LTD.Inventors: Dong Sub LEE, Sin Young PARK, Hang Seob YOON, Hyun Suk KIM, Jeoung Soo KIM, Sang Bong NAM, Jun Ho MOON, Hyang Mok LEE
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Patent number: 9252454Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on the top of the jelly-roll includes a woven fabric or a knit fabric made of fibers.Type: GrantFiled: February 4, 2014Date of Patent: February 2, 2016Assignee: LG CHEM, LTD.Inventors: Do Gyun Kim, Dong-Myung Kim, Dong Sub Lee, Sang Bong Nam, Sang Sok Jung
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Patent number: 9236630Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case and a plate-shaped insulator is mounted on top of the jelly-roll, wherein the insulator has a porous structure in which a plurality of fine pores communicate in a longitudinal direction, or in traverse and longitudinal directions.Type: GrantFiled: February 11, 2014Date of Patent: January 12, 2016Assignee: LG CHEM, LTD.Inventors: Do Gyun Kim, Dong-Myung Kim, Dong Sub Lee, Sang Bong Nam, Sang Sok Jung
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Publication number: 20150089799Abstract: Provided are a secondary battery case and a method for manufacturing a secondary battery. The secondary battery case includes a can accommodating an electrode assembly and a top cap sealing an upper opening of the can. The top cap includes a top plate sealing the upper opening of the can, a filling hole passing through the top plate to fill an electrolyte into the can, and a protrusion protruding from the top plate on an upper portion of the filling hole. The protrusion is press-fitted into the filling hole to seal the filling hole. According to the present invention, the protrusion may protrude from the top plate. Thus, the protrusion may be press-fitted into the filling hole and thus broken to seal the filling hole. Therefore, the member for sealing the filling hole may be integrated with the top plate to reduce manufacturing costs and simplify a manufacturing process.Type: ApplicationFiled: May 21, 2014Publication date: April 2, 2015Applicant: LG CHEM, LTD.Inventors: Sin Young PARK, Jeoung Soo KIM, Dong Sub LEE, Sang Bong NAM, Hang Seob YOON, Hyang Mok LEE, Dong Hee SEO, Hyun Kyung KO, Sang Jin WOO
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Publication number: 20150093630Abstract: Provided are extruding a raw material into a prismatic hollow material having both open ends (Step (a)), drawing the hollow material a plurality of times so as to have a desired thickness (Step (b)), manufacturing a main body by cutting the drawn hollow material to a predetermined length (Step (c)), forming a sealing cover having a shape corresponding to an open end of the main body (Step (d)), and adhering the sealing cover to the open end of the main body (Step (e)).Type: ApplicationFiled: July 16, 2014Publication date: April 2, 2015Inventors: Hyung Seok HAN, Sang Bong NAM, Hyang Mok LEE, Wook Hee JANG, Sang Sok JUNG
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Publication number: 20140272548Abstract: The present invention relates to a secondary battery structure. The secondary battery structure includes: a can an electrode assembly accommodated in the can, the electrode assembly including a cathode tab and an anode tab; a cap plate sealing an opened upper end of the can; and an upper insulator disposed between the can and the cap plate, the upper insulator having a cathode tab hole for the cathode tab, an anode tab hole for the anode tab, and an injection/impregnation hole for injecting and impregnating, wherein each of the cathode tab hole, the anode tab hole, and the injection/impregnation hole extends in a length or width direction of the upper insulator and is symmetrical with respect to at least one of a line (a) that equally divides the upper insulator in a width direction and a line (b) that equally divides the upper insulator in a length direction.Type: ApplicationFiled: June 2, 2014Publication date: September 18, 2014Applicant: LG CHEM, LTD.Inventors: Sang Jin WOO, Hang Seob YOON, Tae Won KANG, Jeoung Soo KIM, Sin Young PARK, Sang Bong NAM, Hyang Mok LEE
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Publication number: 20140220394Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on the top of the jelly-roll includes a perforated inlet enabling gas discharge and penetration of electrode terminals, and a plurality of fine pores that allow permeation of an electrolyte solution, but do not allow permeation of foreign materials having a size of 100 ?m or higher.Type: ApplicationFiled: June 7, 2012Publication date: August 7, 2014Applicant: LG CHEM, LTD.Inventors: Do Gyun Kim, Dong-Myung Kim, Sang Bong Nam, Dong Sub Lee, Jun Ho Moon, Sang Sok Jung
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Publication number: 20140186670Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on top of the jelly-roll includes a perforated inlet enabling gas discharge and penetration of electrode terminals, a plurality of fine pores having a size that allows permeation of an electrolyte solution, but does not allow permeation of foreign materials, and a plurality of strip or bead shaped protrusions disposed in transverse and/or longitudinal directions on one or both surfaces of the insulator.Type: ApplicationFiled: June 4, 2012Publication date: July 3, 2014Applicant: LG CHEM, LTD.Inventors: Do Gyun Kim, Dong-Myung Kim, Sang Bong Nam, Dong Sub Lee, Jun Ho Moon, Sang Sok Jung
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Publication number: 20140178725Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case and a plate-shaped insulator is mounted on top of the jelly-roll, wherein the insulator has a porous structure in which a plurality of fine pores communicate in a longitudinal direction, or in traverse and longitudinal directions.Type: ApplicationFiled: February 11, 2014Publication date: June 26, 2014Applicant: LG CHEM, LTD.Inventors: Do Gyun KIM, Dong-Myung KIM, Dong Sub LEE, Sang Bong NAM, Sang Sok JUNG
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Publication number: 20140162102Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on the top of the jelly-roll includes a molded article made of a polymer resin or a polymer composite and a plurality of fine pores is perforated through the molded article.Type: ApplicationFiled: February 11, 2014Publication date: June 12, 2014Applicant: LG CHEM, LTD.Inventors: Do Gyun KIM, Dong-Myung KIM, Dong Sub LEE, Sang Bong NAM, Sang Sok JUNG
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Publication number: 20140154543Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on the top of the jelly-roll includes a woven fabric or a knit fabric made of fibers.Type: ApplicationFiled: February 4, 2014Publication date: June 5, 2014Applicant: LG CHEM, LTD.Inventors: Do Gyun KIM, Dong-Myung KIM, Dong Sub LEE, Sang Bong NAM, Sang Sok JUNG
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Patent number: 8663837Abstract: A secondary battery includes an electrode assembly in which a cathode plate and an anode plate are arranged with a separator being interposed therebetween, a case in which the electrode assembly is received, a cap assembly capable of sealing an open end of the case, a gasket interposed between the case and the cap assembly, and a leakage prevention portion formed at one surface of the gasket and/or one surface of the cap assembly, which is oriented toward the electrode assembly and contacted with the gasket.Type: GrantFiled: March 11, 2011Date of Patent: March 4, 2014Assignee: LG Chem, Ltd.Inventors: Kyung-Su Oh, Cha-Hun Ku, Yong-Su Choi, Sung-Jong Kim, Jung-Ah Lee, Jae-Dong Chang, Dong-Myung Kim, Jun-Yong Jeong, Sung-Min Hwang, Do-Gyun Kim, Sang-Bong Nam
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Publication number: 20130273414Abstract: Disclosed is a top cap for cylindrical secondary batteries that is composed of a corrosion-resistant single substance and has a surface with irregularities to impart surface roughness capable of preventing formation of surface scratches, and a secondary battery including the same.Type: ApplicationFiled: June 13, 2013Publication date: October 17, 2013Inventors: Jung Ah LEE, Do Gyun KIM, Kwang Su HWANGBO, Sang Sok JUNG, Dong-Myung KIM, Sang Bong NAM
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Publication number: 20130252055Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulating member is mounted on the top of the jelly-roll and the insulating member includes a perforated inlet enabling gas discharge and penetration of electrode terminals and a plurality of pores with a diameter of 100 ?m or less provided over the entire surface of the insulating member.Type: ApplicationFiled: May 31, 2013Publication date: September 26, 2013Inventors: Do Gyun KIM, Dong-Myung KIM, Dong Sub LEE, Sang Bong NAM, Sang Sok JUNG