Patents by Inventor Jee-Ho Kim
Jee-Ho Kim 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: 12287270Abstract: A battery pack is capable of sensing the generation of a gas using Mie scattering, whereby it is possible to rapidly detect abnormality of the battery pack. In addition, whether a battery is abnormal is determined in consideration of a gas generation time as well as the generation of the gas, whereby it is possible to rapidly detect whether the battery is abnormal.Type: GrantFiled: October 7, 2020Date of Patent: April 29, 2025Assignee: LG ENERGY SOLUTION, LTD.Inventors: Gi Moon Gil, Jee Ho Kim
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Patent number: 12272782Abstract: A secondary battery having an electrode assembly in which a positive electrode, a separator, and a negative electrode are alternately stacked, and a can configured to accommodate the electrode assembly is provided. The negative electrode is disposed on an end of the electrode assembly in a direction of one side of the electrode assembly so that a negative electrode non-coating portion protrudes more than the separator with respect to a direction of a winding center axis of the electrode assembly. The positive electrode is disposed on an end of the electrode assembly in a direction of the other side of the electrode assembly so that a positive electrode non-coating portion protrudes more than the separator with respect to the direction of the winding center axis of the electrode assembly. The can includes a first can contacting the positive electrode and a second can contacting the negative electrode.Type: GrantFiled: October 1, 2019Date of Patent: April 8, 2025Assignee: LG ENERGY SOLUTION, LTD.Inventors: Myung Hoon Ko, Yong Tae Lee, Jung Il Park, Jee Ho Kim
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Patent number: 12132173Abstract: A secondary battery comprises an electrode assembly including a first electrode, a separator, and a second electrode alternately stacked and wound about a central axis. A first non-coating portion that is not coated with an electrode active material protrudes farther than the separator in a first direction along the central axis and a second non-coating portion that is not coated with the electrode active material protrudes farther than the separator in a second, opposite direction along the central axis. The first non-coating portion contacts a first connection part disposed on an end of a first can of the battery, and the second non-coating portion contacts a second connection part disposed on an end of a second can. At least one of the first connection part or the second connection part comprises a protrusion having a shape protruding towards the electrode assembly.Type: GrantFiled: October 1, 2019Date of Patent: October 29, 2024Assignee: LG Energy Solution, Ltd.Inventors: Jung Il Park, Jee Ho Kim, Yong Tae Lee, Myung Hoon Ko, Ki Youn Kim, Gyung Soo Kang
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Publication number: 20240313266Abstract: A secondary battery comprises an electrode assembly including a first electrode, a separator, and a second electrode alternately stacked and wound about a central axis. A first non-coating portion that is not coated with an electrode active material protrudes farther than the separator in a first direction along the central axis, and a second non-coating portion that is not coated with the electrode active material protrudes farther than the separator in a second, opposite direction along the central axis. The first non-coating portion contacts a first connection part disposed on an end of a first can of the battery, and the second non-coating portion contacts a second connection part disposed on an end of a second can. At least one of the first connection part or the second connection part comprises a protrusion having a shape protruding towards the electrode assembly.Type: ApplicationFiled: May 29, 2024Publication date: September 19, 2024Applicant: LG Energy Solution, Ltd.Inventors: Jung Il Park, Jee Ho Kim, Yong Tae Lee, Myung Hoon Ko, Ki Youn Kim, Gyung Soo Kang
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Patent number: 12062773Abstract: Provided is a method for determining the wetting degree of a lithium ion battery cell using a low current test. The wetting degree determination method according to the present disclosure includes a) obtaining, as a reference charge profile, a charge profile recorded while charging a reference battery cell having undergone receiving an electrode assembly and an electrolyte solution in a case, assembling and pre-aging with a low current of 0.01 C-rate or less, b) measuring and recording a charge profile while charging another battery cell having undergone receiving an electrode assembly and an electrolyte solution in a case, assembling and pre-aging with a low current of 0.01 C-rate or less in the same way as the reference battery cell, and c) determining the wetting degree of another battery cell relative to the reference battery cell by comparative analysis of the reference charge profile and the measured charge profile.Type: GrantFiled: July 2, 2020Date of Patent: August 13, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Myung-Hoon Ko, Jee-Ho Kim, Yong-Tae Lee, Pil-Kyu Park
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Patent number: 12021212Abstract: A battery module according to an embodiment of the present disclosure includes a battery cell stack in which a plurality of battery cells are stacked; a casing configured to surround the battery cell stack; and a heat transfer member to cool or heat the battery cells. The heat transfer member is disposed between any two adjacent battery cells of the battery cell stack. The heat transfer member is spaced apart from the battery cells and is configured to move into contact with the battery cells to cool or heat the battery cells.Type: GrantFiled: March 4, 2020Date of Patent: June 25, 2024Assignee: LG Energy Solution, Ltd.Inventors: Gyung-Soo Kang, Jee-Ho Kim, Myung-Hoon Ko, Ki-Youn Kim
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Patent number: 11940501Abstract: The present invention relates to a method and an apparatus for diagnosing low voltage of a secondary battery cell. The method for diagnosing low voltage of a secondary battery cell according to an embodiment of the present invention includes pre-aging a battery cell, charging the battery cell according to a preset charging condition, measuring a parameter for determining low voltage failure of the battery cell, comparing the measured parameter with a reference parameter, and performing formation when the battery cell is determined to be normal.Type: GrantFiled: October 4, 2019Date of Patent: March 26, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Yong Tae Lee, Myung Hoon Ko, Jee Ho Kim, Gyung Soo Kang
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Patent number: 11916258Abstract: A secondary battery comprises an electrode assembly, a can, and an insulator. The electrode assembly includes a first electrode, a separator, and a second electrode alternately stacked and wound. The can has an accommodation part accommodating the electrode assembly therein, and the can comprises a first can and a second can having cylindrical shapes open in a direction facing each other. The insulator insulates an overlapping portion between the first can and the second can. The first can is electrically connected to the first electrode, and the second can is electrically connected to the second electrode. The insulator has a short-circuit induction through-part defined by a through-hole or a cutoff line, such that a short circuit occurs between the first can and the second can through the short-circuit induction through-part when it is deformed in shape as heat or a pressure is applied to contract or expand the insulator.Type: GrantFiled: October 4, 2019Date of Patent: February 27, 2024Assignee: LG Energy Solution, Ltd.Inventors: Gyung Soo Kang, Jee Ho Kim, Yong Tae Lee, Myung Hoon Ko, Jung Il Park, Ki Youn Kim
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Patent number: 11742541Abstract: A secondary battery according to the present invention comprises: an electrode assembly in which a first electrode, a separator, and a second electrode are alternately stacked and wound together; a can provided with an accommodation part that accommodates the electrode assembly therein, the can comprising a first can and a second can, which have cylindrical shapes opened in a direction facing each other; and an insulator configured to insulate an overlapping portion between the first can and the second can. The first can forms a first electrode terminal that directly contacts an end of the first electrode, and the second can forms a second electrode terminal that directly contacts an end of the second electrode.Type: GrantFiled: October 1, 2019Date of Patent: August 29, 2023Inventors: Ki Youn Kim, Jee Ho Kim, Myung Hoon Ko, Jung Il Park, Yong Tae Lee, Gyung Soo Kang
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Publication number: 20220359856Abstract: Provided is a method for determining the wetting degree of a lithium ion battery cell using a low current test. The wetting degree determination method according to the present disclosure includes a) obtaining, as a reference charge profile, a charge profile recorded while charging a reference battery cell having undergone receiving an electrode assembly and an electrolyte solution in a case, assembling and pre-aging with a low current of 0.01 C-rate or less, b) measuring and recording a charge profile while charging another battery cell having undergone receiving an electrode assembly and an electrolyte solution in a case, assembling and pre-aging with a low current of 0.01 C-rate or less in the same way as the reference battery cell, and c) determining the wetting degree of another battery cell relative to the reference battery cell by comparative analysis of the reference charge profile and the measured charge profile.Type: ApplicationFiled: July 2, 2020Publication date: November 10, 2022Applicant: LG ENERGY SOLUTION, LTD.Inventors: Myung-Hoon KO, Jee-Ho KIM, Yong-Tae LEE, Pil-Kyu PARK
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Publication number: 20220276146Abstract: A battery pack is capable of sensing the generation of a gas using Mie scattering, whereby it is possible to rapidly detect abnormality of the battery pack. In addition, whether a battery is abnormal is determined in consideration of a gas generation time as well as the generation of the gas, whereby it is possible to rapidly detect whether the battery is abnormal.Type: ApplicationFiled: October 7, 2020Publication date: September 1, 2022Applicant: LG ENERGY SOLUTION, LTD.Inventors: Gi Moon GIL, Jee Ho KIM
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Patent number: 11307263Abstract: An ESS SOH prediction method includes: a capacity virtual division step of virtually dividing a capacity of a measurement target ESS that is to predict an SOH into two or more capacity ranges; each capacity range-dependent charging/discharging cycle data measurement step of measuring charging/discharging cycle data of each capacity range divided in the capacity virtual division step; and a measurement target ESS SOH prediction step of predicting an SOH of a measurement target ESS based on charging/discharging cycle data of each actual ESS measured in the each capacity range-dependent charging/discharging cycle data measurement step.Type: GrantFiled: March 7, 2019Date of Patent: April 19, 2022Assignee: LG ENERGY SOLUTION, LTD.Inventors: Dae Sik Chung, Jee Ho Kim
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Publication number: 20220043068Abstract: The present invention relates to a method and an apparatus for diagnosing low voltage of a secondary battery cell. The method for diagnosing low voltage of a secondary battery cell according to an embodiment of the present invention includes pre-aging a battery cell, charging the battery cell according to a preset charging condition, measuring a parameter for determining low voltage failure of the battery cell, comparing the measured parameter with a reference parameter, and performing formation when the battery cell is determined to be normal.Type: ApplicationFiled: October 4, 2019Publication date: February 10, 2022Applicant: LG CHEM, LTD.Inventors: Yong Tae LEE, Myung Hoon KO, Jee Ho KIM, Gyung Soo KANG
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Publication number: 20210391615Abstract: A secondary battery according to the present invention comprises: an electrode assembly in which a first electrode, a separator, and a second electrode are alternately stacked and wound together; a can provided with an accommodation part that accommodates the electrode assembly therein, the can comprising a first can and a second can, which have cylindrical shapes opened in a direction facing each other; and an insulator configured to insulate an overlapping portion between the first can and the second can. The first can forms a first electrode terminal that directly contacts an end of the first electrode, and the second can forms a second electrode terminal that directly contacts an end of the second electrode.Type: ApplicationFiled: October 1, 2019Publication date: December 16, 2021Applicant: LG Chem, Ltd.Inventors: Ki Youn Kim, Jee Ho Kim, Myung Hoon Ko, Jung Il Park, Yong Tae Lee, Gyung Soo Kang
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Publication number: 20210376392Abstract: A secondary battery comprises an electrode assembly including a first electrode, a separator, and a second electrode alternately stacked and wound about a central axis. A first non-coating portion that is not coated with an electrode active material protrudes farther than the separator in a first direction along the central axis and a second non-coating portion that is not coated with the electrode active material protrudes farther than the separator in a second, opposite direction along the central axis. The first non-coating portion contacts a first connection part disposed on an end of a first can of the battery, and the second non-coating portion contacts a second connection part disposed on an end of a second can. At least one of the first connection part or the second connection part comprises a protrusion having a shape protruding towards the electrode assembly.Type: ApplicationFiled: October 1, 2019Publication date: December 2, 2021Applicant: LG Chem, Ltd.Inventors: Jung Il Park, Jee Ho Kim, Yong Tae Lee, Myung Hoon Ko, Ki Youn Kim, Gyung Soo Kang
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Publication number: 20210344087Abstract: A secondary battery comprises an electrode assembly, a can, and an insulator. The electrode assembly includes a first electrode, a separator, and a second electrode alternately stacked and wound. The can has an accommodation part accommodating the electrode assembly therein, and the can comprises a first can and a second can having cylindrical shapes open in a direction facing each other. The insulator insulates an overlapping portion between the first can and the second can. The first can is electrically connected to the first electrode, and the second can is electrically connected to the second electrode. The insulator has a short-circuit induction through-part defined by a through-hole or a cutoff line, such that a short circuit occurs between the first can and the second can through the short-circuit induction through-part when it is deformed in shape as heat or a pressure is applied to contract or expand the insulator.Type: ApplicationFiled: October 4, 2019Publication date: November 4, 2021Applicant: LG Chem, Ltd.Inventors: Gyung Soo Kang, Jee Ho Kim, Yong Tae Lee, Myung Hoon Ko, Jung Il Park, Ki Youn Kim
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Publication number: 20210257652Abstract: A secondary battery having an electrode assembly in which a positive electrode, a separator, and a negative electrode are alternately stacked, and a can configured to accommodate the electrode assembly is provided. The negative electrode is disposed on an end of the electrode assembly in a direction of one side of the electrode assembly so that a negative electrode non-coating portion protrudes more than the separator with respect to a direction of a winding center axis of the electrode assembly. The positive electrode is disposed on an end of the electrode assembly in a direction of the other side of the electrode assembly so that a positive electrode non-coating portion protrudes more than the separator with respect to the direction of the winding center axis of the electrode assembly. The can includes a first can contacting the positive electrode and a second can contacting the negative electrode.Type: ApplicationFiled: October 1, 2019Publication date: August 19, 2021Applicant: LG CHEM, LTD.Inventors: Myung Hoon KO, Yong Tae LEE, Jung Il PARK, Jee Ho KIM
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Publication number: 20210249713Abstract: A battery module according to an embodiment of the present disclosure includes a battery cell stack in which a plurality of battery cells are stacked; a casing configured to surround the battery cell stack; and a heat transfer member to cool or heat the battery cells. The heat transfer member is disposed between any two adjacent battery cells of the battery cell stack. The heat transfer member is spaced apart from the battery cells and is configured to move into contact with the battery cells to cool or heat the battery cells.Type: ApplicationFiled: March 4, 2020Publication date: August 12, 2021Applicant: LG Chem, Ltd.Inventors: Gyung-Soo Kang, Jee-Ho Kim, Myung-Hoon Ko, Ki-Youn Kim
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Publication number: 20200408848Abstract: An ESS SOH prediction method includes: a capacity virtual division step of virtually dividing a capacity of a measurement target ESS that is to predict an SOH into two or more capacity ranges; each capacity range-dependent charging/discharging cycle data measurement step of measuring charging/discharging cycle data of each capacity range divided in the capacity virtual division step; and a measurement target ESS SOH prediction step of predicting an SOH of a measurement target ESS based on charging/discharging cycle data of each actual ESS measured in the each capacity range-dependent charging/discharging cycle data measurement step.Type: ApplicationFiled: March 7, 2019Publication date: December 31, 2020Applicant: LG CHEM, LTD.Inventors: Dae Sik CHUNG, Jee Ho KIM
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Patent number: 10096867Abstract: A compact secondary battery module integrated with BMS is disclosed, which includes a cartridge assembly stacked and coupled with at least two or more cartridges receiving a secondary battery cell therein; and a sensing housing disposed on a side surface of the cartridge assembly, in which two or more bus bars electrically connected with an electrode of a corresponding cell are disposed in a predetermined pattern, and a BMS circuit board that can be connected with each of the bus bars is prepared integrally.Type: GrantFiled: December 15, 2015Date of Patent: October 9, 2018Assignee: LG CHEM, LTD.Inventors: Bum-Hyun Lee, Jee-Ho Kim, Jin-Kyu Shin, Ju-Han Kim