Patents by Inventor Seungdon Choi
Seungdon Choi 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).
-
Patent number: 10205153Abstract: Disclosed herein is a battery cell assembly including a plurality of battery cells stacked while being electrically connected to each other, wherein one or more of the battery cells are mounted in each cell housing member in a state in which opposite sides of the battery cells are surrounded by each cell housing member excluding electrode terminals of the battery cells, an expansion opening part, through which a portion of a main body of each of the battery cells is exposed outward when the battery cells expand, is formed at one surface or opposite surfaces of each of the at least two cell housing members and the battery cells are stacked such that the at least two expansion opening parts face each other.Type: GrantFiled: July 30, 2014Date of Patent: February 12, 2019Assignee: LG Chem, Ltd.Inventors: JungHoon Yang, Seungdon Choi, YoJin Kim
-
Patent number: 9099733Abstract: Disclosed herein is a safety device mounted at one side of a battery pack including two or more battery cells or at least one battery module such that the safety device is first short-circuited when a needle type object penetrates the battery pack to secure safety of the battery pack, the safety device including a pair of conductive sheets spaced apart from each other, an electrically insulative housing to surround outsides of the conductive sheets excluding fronts of the conductive sheets in a state in which the conductive sheets are inserted and mounted in the housing, a sealing member to cover the fronts of the conductive sheets, and a connection member to connect the conductive sheets to a cathode and an anode of one of battery cells constituting the battery module.Type: GrantFiled: October 24, 2013Date of Patent: August 4, 2015Assignee: LG CHEM, LTD.Inventors: TaeHyuck Kim, Seungdon Choi, Min Chul Jang, Seung Taek Hong, Jin Kyu Lee, DalMo Kang, Seungsu Cho, SeYon Hwang, SoulGie Hong
-
Publication number: 20140335397Abstract: Disclosed herein is a battery cell assembly including a plurality of battery cells stacked while being electrically connected to each other, wherein one or more of the battery cells are mounted in each cell housing member in a state in which opposite sides of the battery cells are surrounded by each cell housing member excluding electrode terminals of the battery cells, an expansion opening part, through which a portion of a main body of each of the battery cells is exposed outward when the battery cells expand, is formed at one surface or opposite surfaces of each of the at least two cell housing members and the battery cells are stacked such that the at least two expansion opening parts face each other.Type: ApplicationFiled: July 30, 2014Publication date: November 13, 2014Inventors: JungHoon Yang, Seungdon Choi, YoJin Kim
-
Patent number: 8758925Abstract: Provided is a battery system in which an interior part of a battery structure includes phase-change particles including a capsule and phase-change materials. The phase-change materials have a high latent heat of phase change at a specific temperature, and are encapsulated in the capsule. The capsule is made of an inert material. The battery system in accordance with the present invention can prolong a service life of the battery by inhibiting temperature elevation inside the battery under normal operating conditions without substantial effects on size, shape and performance of the battery, and further, can inhibit the risk of explosion resulting from a sharp increase in temperature inside the battery under abnormal operating conditions, thereby contributing to battery safety.Type: GrantFiled: February 9, 2012Date of Patent: June 24, 2014Assignee: LG Chem, Ltd.Inventors: Seungdon Choi, Hong-Kyu Park
-
Publication number: 20140050950Abstract: Disclosed herein is a safety device mounted at one side of a battery pack including two or more battery cells or at least one battery module such that the safety device is first short-circuited when a needle type object penetrates the battery pack to secure safety of the battery pack, the safety device including a pair of conductive sheets spaced apart from each other, an electrically insulative housing to surround outsides of the conductive sheets excluding fronts of the conductive sheets in a state in which the conductive sheets are inserted and mounted in the housing, a sealing member to cover the fronts of the conductive sheets, and a connection member to connect the conductive sheets to a cathode and an anode of one of battery cells constituting the battery module.Type: ApplicationFiled: October 24, 2013Publication date: February 20, 2014Applicant: LG CHEM, LTD.Inventors: TaeHyuck KIM, Seungdon CHOI, Min Chul JANG, Seung Taek HONG, Jin Kyu LEE, DalMo KANG, Seungsu CHO, SeYon HWANG, SoulGie HONG
-
Patent number: 8343647Abstract: Disclosed herein is a middle- or large-sized battery pack including a plurality of unit cells electrically connected with each other, wherein the battery pack is constructed in a structure in which a heat transfer medium flows through gaps defined between the unit cells for controlling the overall temperature of the battery pack to be within a predetermined temperature range for the optimum operation of the battery pack, and each unit cell is provided at the outer surface thereof, at which the heat transfer medium is brought into contact with each unit cell, with a layer containing a phase transformation material (‘phase transformation layer’) for minimizing individual temperature difference between the unit cells. The present invention has the effect of controlling the overall temperature of the battery pack and individual controlling the temperatures of unit cells constituting the battery pack.Type: GrantFiled: March 31, 2007Date of Patent: January 1, 2013Assignee: LG Chem, Ltd.Inventors: Jaesung Ahn, Do Yang Jung, John E. Namgoong, Seungdon Choi, Sinyoung Park
-
Patent number: 8323833Abstract: Provided are an anode for a battery comprising: (a) an anode active material, (b) TiO2, and (c) a styrene-butadiene rubber (SBR), and a lithium secondary battery comprising the same. By using titanium oxide and SBR together with an anode active material as the anode components in the present invention, increase in the anode resistivity during the high-temperature storage and reduction in the battery capacity by the resistivity are inhibited, thereby the overall performances of the battery can be improved.Type: GrantFiled: July 21, 2007Date of Patent: December 4, 2012Assignee: LG Chem, Ltd.Inventors: Yun-Ho Lee, Sunkyu Kim, Seungdon Choi
-
Publication number: 20120135281Abstract: Provided is a battery system in which an interior part of a battery structure includes phase-change particles including a capsule and phase-change materials. The phase-change materials have a high latent heat of phase change at a specific temperature, and are encapsulated in the capsule. The capsule is made of an inert material. The battery system in accordance with the present invention can prolong a service life of the battery by inhibiting temperature elevation inside the battery under normal operating conditions without substantial effects on size, shape and performance of the battery, and further, can inhibit the risk of explosion resulting from a sharp increase in temperature inside the battery under abnormal operating conditions, thereby contributing to battery safety.Type: ApplicationFiled: February 9, 2012Publication date: May 31, 2012Applicant: LG CHEM, LTD.Inventors: Seungdon CHOI, Hong-Kyu PARK
-
Patent number: 7931979Abstract: Provided is a battery system in which an interior part of a battery structure includes particles (phase-change particles) containing materials (phase-change materials) having a high latent heat of phase change at a specific temperature, contained in a capsule made of an inert material. The battery system in accordance with the present invention can prolong a service life of the battery by inhibiting temperature elevation inside the battery under normal operating conditions without substantial effects on size, shape and performance of the battery, and further, can inhibit the risk of explosion resulting from a sharp increase in temperature inside the battery under abnormal operating conditions, thereby contributing to battery safety.Type: GrantFiled: August 4, 2005Date of Patent: April 26, 2011Assignee: LG Chem, Ltd.Inventors: Seungdon Choi, Hong-Kyu Park
-
Publication number: 20110081564Abstract: Provided is a battery system in which an interior part of a battery structure includes particles (phase-change particles) containing materials (phase-change materials) having a high latent heat of phase change at a specific temperature, contained in a capsule made of an inert material. The battery system in accordance with the present invention can prolong a service life of the battery by inhibiting temperature elevation inside the battery under normal operating conditions without substantial effects on size, shape and performance of the battery, and further, can inhibit the risk of explosion resulting from a sharp increase in temperature inside the battery under abnormal operating conditions, thereby contributing to battery safety.Type: ApplicationFiled: December 14, 2010Publication date: April 7, 2011Applicant: LG CHEM, LTD.Inventors: Seungdon CHOI, Hong-Kyu PARK
-
Patent number: 7749660Abstract: Provided is a battery electrolyte comprising an electrolyte salt, an electrolyte solvent and a compound producing chemical reaction products with the exception of water through a chemical reaction with an acid (H+), and a secondary battery comprising the same. The battery electrolyte according to the present invention can achieve improved high-temperature storage characteristics and the life characteristics of the battery, by using a compound decreasing a concentration of HX (X=F, Cl, Br or I) through a chemical reaction with HX (X=F, Cl, Br or I) which is present in the battery and therefore causes deterioration of the battery performance.Type: GrantFiled: June 20, 2007Date of Patent: July 6, 2010Assignee: LG Chem, Ltd.Inventors: Yun-Ho Lee, Seungdon Choi, Changjoo Han, Jonghwan Kim, Jisang Yu
-
Publication number: 20100159327Abstract: Provided are an anode for a battery comprising: (a) an anode active material, (b) TiO2, and (c) a styrene-butadiene rubber (SBR), and a lithium secondary battery comprising the same. By using titanium oxide and SBR together with an anode active material as the anode components in the present invention, increase in the anode resistivity during the high-temperature storage and reduction in the battery capacity by the resistivity are inhibited, thereby the overall performances of the battery can be improved.Type: ApplicationFiled: July 21, 2007Publication date: June 24, 2010Applicant: LG Chem, Ltd.Inventors: Yun-Ho Lee, Sunkyu Kim, Seungdon Choi
-
Publication number: 20090305124Abstract: Disclosed herein is a middle- or large-sized battery pack including a plurality of unit cells electrically connected with each other, wherein the battery pack is constructed in a structure in which a heat transfer medium flows through gaps defined between the unit cells for controlling the overall temperature of the battery pack to be within a predetermined temperature range for the optimum operation of the battery pack, and each unit cell is provided at the outer surface thereof, at which the heat transfer medium is brought into contact with each unit cell, with a layer containing a phase transformation material (‘phase transformation layer’) for minimizing individual temperature difference between the unit cells. The present invention has the effect of controlling the overall temperature of the battery pack and individual controlling the temperatures of unit cells constituting the battery pack.Type: ApplicationFiled: March 31, 2007Publication date: December 10, 2009Applicant: LG CHEM, LTDInventors: Jaesung Ahn, Do Yang Jung, John E. Namgoong, Seungdon Choi, Sinyoung Park
-
Publication number: 20070292754Abstract: Provided is a battery electrolyte comprising an electrolyte salt, an electrolyte solvent and a compound producing chemical reaction products with the exception of water through a chemical reaction with an acid (H+), and a secondary battery comprising the same. The battery electrolyte according to the present invention can achieve improved high-temperature storage characteristics and the life characteristics of the battery, by using a compound decreasing a concentration of HX (X=F, Cl, Br or I) through a chemical reaction with HX (X=F, Cl, Br or I) which is present in the battery and therefore causes deterioration of the battery performance.Type: ApplicationFiled: June 20, 2007Publication date: December 20, 2007Applicant: LG CHEM, LTD.Inventors: Yun-Ho LEE, Seungdon CHOI, Changjoo HAN, Jonghwan KIM, Jisang YU
-
Publication number: 20060063066Abstract: Provided is a battery system in which an interior part of a battery structure includes particles (phase-change particles) containing materials (phase-change materials) having a high latent heat of phase change at a specific temperature, contained in a capsule made of an inert material. The battery system in accordance with the present invention can prolong a service life of the battery by inhibiting temperature elevation inside the battery under normal operating conditions without substantial effects on size, shape and performance of the battery, and further, can inhibit the risk of explosion resulting from a sharp increase in temperature inside the battery under abnormal operating conditions, thereby contributing to battery safety.Type: ApplicationFiled: August 4, 2005Publication date: March 23, 2006Inventors: Seungdon Choi, Hong-Kyu Park
-
Patent number: D935388Type: GrantFiled: June 28, 2019Date of Patent: November 9, 2021Inventors: Hey Woong Park, Wonhee Jeong, Seungdon Choi
-
Patent number: D935389Type: GrantFiled: June 28, 2019Date of Patent: November 9, 2021Inventors: Hey Woong Park, Wonhee Jeong, Seungdon Choi
-
Patent number: D942371Type: GrantFiled: June 28, 2019Date of Patent: February 1, 2022Inventors: Hey Woong Park, Wonhee Jeong, Seungdon Choi