Patents by Inventor JeongSam Son
JeongSam Son 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: 9455467Abstract: Disclosed herein is a folding device to manufacture a stacked/folded type electrode assembly having unit cells sequentially stacked in a state in which a separation film is disposed between the respective unit cells, the folding device including a web supply unit to supply a web having plate-shaped unit cells arranged at a top of a separation film at predetermined intervals, a winding jig to rotate the unit cells while holding a first one of the unit cells of the web so that the unit cells are sequentially stacked in a state in which the separation film is disposed between the respective unit cells, and a rotary shaft compensation unit to compensate for the position of a rotary shaft of the winding jig in an advancing direction of the web (X-axis direction).Type: GrantFiled: July 13, 2011Date of Patent: September 27, 2016Assignee: LG CHEM, LTD.Inventors: Ki Hong Min, Sung-Min Hwang, Jihoon Cho, Changmin Han, Ki Hun Song, Sang Hyuck Park, Han Sung Lee, Byeong Geun Kim, Tae-Yoon Jung, JeongSam Son, Su Taek Jung, Hyun Suk Baik
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Patent number: 9209428Abstract: Disclosed herein is a secondary battery constructed in a structure in which pluralities of electrode tabs, protruding from an electrode assembly, are connected to corresponding electrode leads, and the electrode assembly is mounted in a receiving part, wherein a battery case is multi-formed, such that the battery case presses the upper end of the electrode assembly by a predetermined width, thereby preventing the upward movement of the electrode assembly, mounted in the receiving part, at the upper end space region of the receiving part, where the electrode assembly is spaced apart from the upper end of the receiving part, for the connection between the electrode tabs and the corresponding electrode leads, during the repetitive charge and discharge of the battery.Type: GrantFiled: October 31, 2007Date of Patent: December 8, 2015Assignee: LG Chem, Ltd.Inventors: Hyun-Chul Jung, Hyang Mok Lee, Byungjin Choi, Jun Hwan Jang, JeongSam Son
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Publication number: 20130209848Abstract: Disclosed herein is a folding device to manufacture a stacked/folded type electrode assembly having unit cells sequentially stacked in a state in which a separation film is disposed between the respective unit cells, the folding device including a web supply unit to supply a web having plate-shaped unit cells arranged at a top of a separation film at predetermined intervals, a winding jig to rotate the unit cells while holding a first one of the unit cells of the web so that the unit cells are sequentially stacked in a state in which the separation film is disposed between the respective unit cells, and a rotary shaft compensation unit to compensate for the position of a rotary shaft of the winding jig in an advancing direction of the web (X-axis direction), wherein the rotary shaft compensation unit periodically changes the position of the rotary shaft to compensate for the change in X-axis velocity (Vx) of the web caused during winding of the plate-shaped unit cells, thereby uniformly maintaining tension ofType: ApplicationFiled: July 13, 2011Publication date: August 15, 2013Applicant: LG CHEM, LTD.Inventors: Ki Hong Min, Sung-Min Hwang, Jihoon Cho, Changmin Han, Ki Hun Song, Sang Hyuck Park, Han Sung Lee, Byeong Geun Kim, Tae-Yoon Jung, JeongSam Son, Su Taek Jung, Hyun Suk Baik
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Patent number: 8034478Abstract: Disclosed herein is a secondary battery having an electrode assembly received in a receiving part of a battery case, the electrode assembly being constructed in a structure in which pluralities of cathodes and anodes are stacked one on another while separators are disposed between the respective cathodes and anodes, and electrode taps extending from the stacked cathodes and anodes are coupled to electrode leads, wherein the receiving part of the battery case is provided at the outer upper end thereof with a depressed step such that at least a portion of the inner upper end of the receiving part of the battery case excluding the electrode taps-electrode lead coupling parts of the electrode assembly is in tight contact with the upper end of the electrode assembly.Type: GrantFiled: July 21, 2006Date of Patent: October 11, 2011Assignee: LG Chem, Ltd.Inventors: Hyang Mok Lee, Byungjin Choi, Jun Hwan Jang, Hyun-Chul Jung, JeongSam Son, Chang bum Ahn, Hyung Ku Yun
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Patent number: 7897280Abstract: Disclosed herein is a sheet-shaped safety kit that is attached to opposite major surfaces of an electrode assembly for secondary batteries. The safety kit includes a group of metal sheets electrically connected to a cathode terminal of the electrode assembly, another group of metal sheets electrically connected to a cathode terminal of the electrode assembly, and an insulation sheet disposed between the two metal sheet groups. The metal sheets of one of the metal sheet groups are interconnected with each other at lower ends of the metal sheets, the lower-end interconnection part interconnecting the lower ends of the metal sheets has a width less than that of the metal sheets, and lower-end corners of the interconnected metal sheets are larger than lower-end corners of the metal sheets that are not interconnected with each other.Type: GrantFiled: December 28, 2006Date of Patent: March 1, 2011Assignee: LG Chem, Ltd.Inventors: Hyang Mok Lee, Byungjin Choi, Jun Hwan Jang, Hyung Ku Yun, Chang bum Ahn, Hyun-Chul Jung, JeongSam Son, Dong jun Kim
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Publication number: 20100143787Abstract: Disclosed herein is a secondary battery constructed in a structure in which pluralities of electrode tabs, protruding from an electrode assembly, are connected to corresponding electrode leads, and the electrode assembly is mounted in a receiving part, wherein a battery case is multi-formed, such that the battery case presses the upper end of the electrode assembly by a predetermined width, thereby preventing the upward movement of the electrode assembly, mounted in the receiving part, at the upper end space region of the receiving part, where the electrode assembly is spaced apart from the upper end of the receiving part, for the connection between the electrode tabs and the corresponding electrode leads, during the repetitive charge and discharge of the battery.Type: ApplicationFiled: October 31, 2007Publication date: June 10, 2010Applicant: LG CHEM, LTD.Inventors: Hyun-Chul Jung, Hyang Mok Lee, Byungjin Choi, Jun Hwan Jang, JeongSam Son
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Publication number: 20080008927Abstract: Disclosed herein is a sheet-shaped safety kit that is attached to opposite major surfaces of an electrode assembly for secondary batteries. The safety kit includes a group of metal sheets electrically connected to a cathode terminal of the electrode assembly, another group of metal sheets electrically connected to a cathode terminal of the electrode assembly, and an insulation sheet disposed between the two metal sheet groups. The metal sheets of one of the metal sheet groups are interconnected with each other at lower ends of the metal sheets, the lower-end interconnection part interconnecting the lower ends of the metal sheets has a width less than that of the metal sheets, and lower-end corners of the interconnected metal sheets are larger than lower-end corners of the metal sheets that are not interconnected with each other.Type: ApplicationFiled: December 28, 2006Publication date: January 10, 2008Applicant: LG CHEM, LTD.Inventors: Hyang Mok LEE, Byungjin CHOI, Jun Hwan JANG, Hyung Ku YUN, Chang bum AHN, Hyun-Chul JUNG, JeongSam SON, Dong jun KIM
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Publication number: 20070231683Abstract: Disclosed herein is a secondary battery having an electrode assembly received in a receiving part of a battery case, the electrode assembly being constructed in a structure in which pluralities of cathodes and anodes are stacked one on another while separators are disposed between the respective cathodes and anodes, and electrode taps extending from the stacked cathodes and anodes are coupled to electrode leads, wherein the receiving part of the battery case is provided at the outer upper end thereof with a depressed step such that at least a portion of the inner upper end of the receiving part of the battery case excluding the electrode taps-electrode lead coupling parts of the electrode assembly is in tight contact with the upper end of the electrode assembly.Type: ApplicationFiled: July 21, 2006Publication date: October 4, 2007Inventors: Hyang Mok Lee, Byungjin Choi, Jun Hwan Jang, Hyun-Chul Jung, JeongSam Son, Chang bum Ahn, Hyung Ku Yun
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Publication number: 20060093908Abstract: Provided is a secondary battery having an electrode assembly installed in a battery case made up of a laminated sheet composed of an outer coating layer of a polymer film, a barrier layer of a metal foil and an inner sealant layer of a polyolefin material, wherein the metal foil of the barrier layer is formed of an aluminum alloy, the outer coating layer is formed of polyethylene naphthalate (PEN) and/or the outer surface of the outer coating layer is provided with a polyethylene naphthalate (PET) layer, and wherein the battery has a nail penetration resistance force of more than 6.5 kgf. The battery in accordance with the present invention exhibits further improved safety due to the ability to significantly reduce the probability of invasion, ignition or explosion as compared to conventional batteries, even when the battery is exposed to external physical impact or is pressed by sharp objects.Type: ApplicationFiled: October 18, 2005Publication date: May 4, 2006Inventors: Sung-Min Hwang, Kichul Hong, Hyang Lee, Chang Ahn, Kyong Kang, JeongSam Son