Patents by Inventor Byoung-Gu LEE

Byoung-Gu LEE 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: 20240021958
    Abstract: Discussed is a battery that may include an electrode assembly including a first electrode, a second electrode and a separator wound around a winding axis, wherein the first electrode includes a first active material region coated with a first active material layer and a first uncoated region not coated with the first active material layer, and at least a part of the first uncoated region being an electrode tab; a first current collector coupled to at least a part of the first uncoated region on the electrode assembly; a battery housing to accommodate the electrode assembly and the first current collector; and an insulator interposed between at least one of the first uncoated region and the first current collector and an inner surface of the battery housing facing the at least one of the first uncoated region and the first current collector to block an electrical connection between the battery housing and the at least one of the first uncoated region and the first current collector.
    Type: Application
    Filed: January 19, 2022
    Publication date: January 18, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Min-Ki JO, Bo-Hyun KANG, Do-Gyun KIM, Geon-Woo MIN, Su-Ji CHOI, Kwang-Su HWANGBO, Hae-Jin LIM, Jin-Hak KONG, Soon-O LEE, Kyu-Hyun CHOI, Jae-Won LIM, Hak-Kyun KIM, Je-Jun LEE, Ji-Min JUNG, Jae-Woong KIM, Jong-Sik PARK, Yu-Sung CHOE, Byoung-Gu LEE, Duk-Hyun RYU, Kwan-Hee LEE, Jae-Eun LEE, Pil-Kyu PARK
  • Publication number: 20230291015
    Abstract: A battery includes an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and second electrode, a first portion including an active material extending between a pair of first sides, and a second portion extending between the pair of first sides and exposed beyond the separator, at least a part of the second portion includes an electrode tab; a battery housing having a first end with a first opening, a second end opposite the first end, and an inner surface, the battery housing accommodating the electrode assembly; a first current collector including a tab coupling portion coupled to the second portion of the first electrode and a housing coupling portion extending from the tab coupling portion and electrically coupled to the inner surface of the battery housing; and a cap covering the first opening of the battery housing.
    Type: Application
    Filed: April 7, 2023
    Publication date: September 14, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Jae-Won LIM, Hak-Kyun KIM, Je-Jun LEE, Ji-Min JUNG, Kwang-Su HWANGBO, Do-Gyun KIM, Geon-Woo MIN, Hae-Jin LIM, Min-Ki JO, Su-Ji CHOI, Jae-Woong KIM, Jong-Sik PARK, Yu-Sung CHOE, Byoung-Gu LEE, Duk-Hyun RYU, Kwan-Hee LEE, Jae-Eun LEE, Bo-Hyun KANG, Jin-Hak KONG, Soon-O LEE, Kyu-Hyun CHOI, Pil-Kyu PARK
  • Publication number: 20230246243
    Abstract: A battery includes an electrode assembly including a first electrode, second electrode, and a separator between the first electrode and the second electrode, the first electrode including a first region coated with an active material and a second region at a first side and adjacent to the first region, the second region being exposed beyond the separator, and at least part of the second region is an electrode tab; a housing including a first end with a first opening, the housing accommodating the electrode assembly; a first current collector including an edge portion on the electrode assembly, a second region coupling portion extending from the edge portion and coupled with the second region, and a terminal coupling portion spaced apart from the second region coupling portion; and a terminal coupled with the terminal coupling portion.
    Type: Application
    Filed: April 6, 2023
    Publication date: August 3, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Su-Ji CHOI, Kwang-Su HWANGBO, Do-Gyun KIM, Geon-Woo MIN, Min-Ki JO, Jae-Won LIM, Hak-Kyun KIM, Je-Jun LEE, Ji-Min JUNG, Hae-Jin LIM, Jae-Woong KIM, Jong-Sik PARK, Yu-Sung CHOE, Byoung-Gu LEE, Duk-Hyun RYU, Kwan-Hee LEE, Jae-Eun LEE, Bo-Hyun KANG, Jin-Hak KONG, Soon-O LEE, Kyu-Hyun CHOI, Pil-Kyu PARK
  • Publication number: 20230246245
    Abstract: A battery can include an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode. The first electrode can have a pair of first sides and a pair of second sides extending between the pair of first sides, a first portion including an active material extending between the pair of first sides, and a second portion extending between the pair of first sides and exposed beyond the separator along a winding direction. The battery can further include a battery housing having a first opening at a first end and a second end with a second opening opposite the first end, a first current collector including a support portion positioned on the electrode assembly, and a housing cover which seals the first opening.
    Type: Application
    Filed: April 7, 2023
    Publication date: August 3, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Jae-Won LIM, Hak-Kyun KIM, Je-Jun LEE, Ji-Min JUNG, Su-Ji CHOI, Kwang-Su HWANGBO, Do-Gyun KIM, Geon-Woo MIN, Hae-Jin LIM, Min-Ki JO, Jae-Woong KIM, Jong-Sik PARK, Yu-Sung CHOE, Byoung-Gu LEE, Duk-Hyun RYU, Kwan-Hee LEE, Jae-Eun LEE, Bo-Hyun KANG, Jin-Hak KONG, Soon-O LEE, Kyu-Hyun CHOI, Pil-Kyu PARK
  • Publication number: 20230246302
    Abstract: A battery can include an electrode assembly having a first electrode, a second electrode and a separator. The first electrode can include a first active material region coated with an active material layer along a winding direction and a first uncoated region not coated with the active material layer, and at least part of the first uncoated region used as an electrode tab. The battery can further include a first current collector coupled to at least part of the first uncoated region on the electrode assembly, a battery housing to accommodate the electrode assembly and the first current collector, and an insulator between an inner surface of the battery housing facing the first uncoated region or the first current collector and the first uncoated region or the first current collector to block the electrical connection between the first uncoated region and the battery housing.
    Type: Application
    Filed: April 7, 2023
    Publication date: August 3, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Min-Ki JO, Bo-Hyun KANG, Do-Gyun KIM, Geon-Woo MIN, Su-Ji CHOI, Kwang-Su HWANGBO, Hae-Jin LIM, Jin-Hak KONG, Soon-O LEE, Kyu-Hyun CHOI, Jae-Won LIM, Hak-Kyun KIM, Je-Jun LEE, Ji-Min JUNG, Jae-Woong KIM, Jong-Sik PARK, Yu-Sung CHOE, Byoung-Gu LEE, Duk-Hyun RYU, Kwan-Hee LEE, Jae-Eun LEE, Pil-Kyu PARK
  • Publication number: 20230246244
    Abstract: A battery can include an electrode assembly, a battery housing, a terminal and a cap. The electrode assembly can have a first electrode, a second electrode and a separator between the first electrode and the second electrode. Each of the first electrode and the second electrode can have a first portion including an active material corresponding to the separator, and a second portion exposed beyond the separator and not coated with the active material. The battery housing can have a first end with a first opening and a second end with a second opening opposite the first end. The terminal can be electrically connected to the second portion of the first electrode and exposed out of the battery housing through the first opening of the battery housing at the first end.
    Type: Application
    Filed: April 6, 2023
    Publication date: August 3, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Kwang-Su HWANGBO, Do-Gyun KIM, Geon-Woo MIN, Hae-Jin LIM, Min-Ki JO, Su-Ji CHOI, Bo-Hyun KANG, Jong-Sik PARK, Jae-Won LIM, Yu-Sung CHOE, Hak-Kyun KIM, Je-Jun LEE, Byoung-Gu LEE, Duk-Hyun RYU, Kwan-Hee LEE, Jae-Eun LEE, Jae-Woong KIM, Ji-Min JUNG, Jin-Hak KONG, Soon-O LEE, Kyu-Hyun CHOI, Pil-Kyu PARK
  • Publication number: 20230231243
    Abstract: A cylindrical secondary battery may have an insulation layer formed in a region in which the top cap and the first gasket are coupled to each other. The insulation layer may include a ceramic material and a binder. The secondary battery is designed so that, when an external electrical conductive object is electrically connected directly to a positive electrode and a negative electrode of the secondary battery, an electrode tab of the secondary battery is broken as quickly as possible.
    Type: Application
    Filed: March 21, 2023
    Publication date: July 20, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Do Gyun Kim, Sang Suk Jung, Byoung Kook Lee, Byoung Gu Lee, Chan Bae Kim
  • Publication number: 20230133740
    Abstract: An electrode assembly, a battery, and a battery pack and a vehicle including the same are provided. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on an axis to define a core and an outer circumference. The first electrode includes a first portion coated with an active material and a second portion at a first side and adjacent the first portion, the second portion being exposed beyond the separator along a first axial direction of the electrode assembly. A part of the second portion is bent in a radial direction of the electrode assembly forming a first surface region including stacked layers of the second portion, and in a partial region of the first surface region, a number of the stacked layers of the second portion is 10 or more in the in the first axial direction.
    Type: Application
    Filed: December 21, 2022
    Publication date: May 4, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Hae-Jin LIM, Jin-Hak KONG, Soon-O LEE, Kyu-Hyun CHOI, Do-Gyun KIM, Su-Ji CHOI, Kwang-Su HWANGBO, Geon-Woo MIN, Min-Ki JO, Jae-Won LIM, Hak-Kyun KIM, Je-Jun LEE, Ji-Min JUNG, Jae-Woong KIM, Jong-Sik PARK, Yu-Sung CHOE, Byoung-Gu LEE, Duk-Hyun RYU, Kwan-Hee LEE, Jae-Eun LEE, Bo-Hyun KANG, Pil-Kyu PARK
  • Publication number: 20230130340
    Abstract: The riveting structure of an electrode terminal for a battery includes a battery housing having a bottom; an electrode terminal riveted through a hole formed in the bottom of the battery housing; and a gasket between the electrode terminal and the battery housing. Also, the electrode terminal includes a body portion inserted into the hole; an outer flange portion extending along an outer surface of the bottom of the battery housing from a first side of the body portion exposed through the outer surface; an inner flange portion extending toward an inner surface of the bottom of the battery housing from a second side of the body portion exposed through the inner surface; and a flat portion on the second side of the body portion.
    Type: Application
    Filed: December 21, 2022
    Publication date: April 27, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Geon-Woo MIN, Min-Ki JO, Do-Gyun KIM, Jae-Woong KIM, Kwang-Su HWANGBO, Jong-Sik PARK, Jae-Won LIM, Yu-Sung CHOE, Hak-Kyun KIM, Je-Jun LEE, Byoung-Gu LEE, Duk-Hyun RYU, Kwan-Hee LEE, Jae-Eun LEE, Hae-Jin LIM, Su-Ji CHOI, Bo-Hyun KANG, Ji-Min JUNG, Jin-Hak KONG, Soon-O LEE, Kyu-Hyun CHOI, Pil-Kyu PARK
  • Publication number: 20230117276
    Abstract: Disclosed is a lithium secondary battery including: an electrode assembly in which a positive electrode plate, a negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate are wound in one direction; a battery can in which the electrode assembly is accommodated; and a sealing body which seals an open end of the battery can. The positive electrode plate includes a positive electrode active material, and the positive electrode active material includes single particles or quasi-single particles, having an average particle diameter D50 of 5 ?m or less.
    Type: Application
    Filed: October 13, 2022
    Publication date: April 20, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Byoung Gu LEE, Duk Hyun RYU, Kwan Hee LEE, Myung An LEE, Sue Jin KIM
  • Publication number: 20230121876
    Abstract: An electrode assembly includes a first electrode; a second electrode; and a separator, the first electrode, the second electrode, and the separator wound about an axis defining a core and an outer circumference of the electrode assembly. The first electrode has a pair of first sides and a pair of second sides, a first portion extending between the pair of first sides, and a second portion extending between the pair of first sides, the first portion being coated with an active material, and at least a part of the second portion includes an electrode tab. The second portion includes a first part adjacent to the core of the electrode assembly, a second part adjacent to the outer circumference of the electrode assembly, and a third part between the first part and the second part. The first or second part has a smaller height than the third part.
    Type: Application
    Filed: December 21, 2022
    Publication date: April 20, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Jong-Sik PARK, Jae-Won LIM, Yu-Sung CHOE, Hak-Kyun KIM, Je-Jun LEE, Byoung-Gu LEE, Duk-Hyun RYU, Kwan-Hee LEE, Jae-Eun LEE, Pil-Kyu PARK, Kwang-Su HWANGBO, Do-Gyun KIM, Geon-Woo MIN, Hae-Jin LIM, Min-Ki JO, Su-Ji CHOI, Bo-Hyun KANG, Jae-Woong KIM, Ji-Min JUNG, Jin-Hak KONG, Soon-O LEE, Kyu-Hyun CHOI
  • Publication number: 20230117468
    Abstract: A lithium secondary battery which includes an electrode assembly in which a positive electrode plate, a negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate are wound in one direction, a battery can in which the electrode assembly is accommodated, and a sealing body which seals an open end of the battery can. The positive electrode plate includes positive electrode active material comprising single particles, quasi-single particles, or a combination thereof, and the positive electrode active material has Dmin of 1.0 ?m or more.
    Type: Application
    Filed: October 7, 2022
    Publication date: April 20, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Byoung Gu LEE, Duk Hyun RYU, Kwan Hee LEE, Myung An LEE, Sue Jin KIM
  • Publication number: 20230124306
    Abstract: To solve the above problem, a method for manufacturing a top insulator configured to be inserted into a case of a secondary battery, according to an embodiment of the present invention includes: preparing a top insulator fabric by applying a silicone rubber to at least one surface of a glass fiber fabric formed by crossing weft yarns and warp yarns of glass fiber raw yarns; and punching the top insulator fabric.
    Type: Application
    Filed: December 20, 2022
    Publication date: April 20, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Byoung Gu LEE, Do Gyun KIM, Sang Suk JUNG, Hang Soo SHIN
  • Patent number: 11631915
    Abstract: A gasket for a secondary battery includes a base resin and a rust inhibitor, wherein the base resin includes polybutylene terephthalate and the rust inhibitor includes an anti-rust material and a polymer resin, and the base resin and the polymer resin are different.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: April 18, 2023
    Inventors: Byoung Gu Lee, Do Gyun Kim, Sang Suk Jung, Hang Soo Shin, Chan Bae Kim
  • Patent number: 11557795
    Abstract: The present invention relates to a washer for a secondary battery including a film layer and an adhesive layer disposed on at least one surface of the film layer, wherein the adhesive layer includes an adhesive component and an indicator component, and the indicator component is fat-soluble, a secondary battery including the same, and a method for manufacturing the washer.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: January 17, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Byoung Gu Lee, Do Gyun Kim, Je Jun Lee, Sang Suk Jung, Hang Soo Shin
  • Patent number: 11552358
    Abstract: To solve the above problem, a method for manufacturing a top insulator configured to be inserted into a case of a secondary battery, according to an embodiment of the present invention includes: preparing a top insulator fabric by applying a silicone rubber to at least one surface of a glass fiber fabric formed by crossing weft yarns and warp yarns of glass fiber raw yams; and punching the top insulator fabric.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: January 10, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Byoung Gu Lee, Do Gyun Kim, Sang Suk Jung, Hang Soo Shin
  • Patent number: 11532846
    Abstract: To solve the above problem, a top insulator for a case of a secondary battery, according to an embodiment of the present invention includes: a glass fiber including crossed weft yarns and warp yarns of raw yarns of the glass fiber; and silicone rubber on at least one surface of the glass fiber.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: December 20, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Byoung Gu Lee, Do Gyun Kim, Sang Suk Jung, Hang Soo Shin
  • Patent number: 11495867
    Abstract: A rust inhibitor for a gasket, a gasket for a secondary battery including the same, and a secondary battery are provided. The rust inhibitor includes an anti-rust material and a polymer resin, wherein the polymer resin includes at least one of polyethylene or a copolymer which includes 2 or more derived units selected from the group consisting of an ethylene-derived unit, a propylene-derived unit, a butylene terephthalate-derived unit, an ethylene terephthalate-derived unit, and a methyl acrylate-derived unit.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: November 8, 2022
    Inventors: Byoung Gu Lee, Do Gyun Kim, Sang Suk Jung, Hang Soo Shin, Chan Bae Kim
  • Patent number: 11450910
    Abstract: 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: Grant
    Filed: October 17, 2018
    Date of Patent: September 20, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Hang Soo Shin, Do Gyun Kim, Sang Suk Jung, Byoung Gu Lee, Chan Bae Kim
  • Publication number: 20220278431
    Abstract: An electrode assembly includes a first electrode; a second electrode; and a separator, the first electrode, the second electrode, and the separator wound about an axis defining a core and an outer circumference of the electrode assembly. The first electrode has a pair of first sides and a pair of second sides, a first portion extending between the pair of first sides, and a second portion extending between the pair of first sides, the first portion being coated with an active material, and at least a part of the second portion includes an electrode tab. The second portion includes a first part adjacent to the core of the electrode assembly, a second part adjacent to the outer circumference of the electrode assembly, and a third part between the first part and the second part. The first or second part has a smaller height than the third part.
    Type: Application
    Filed: February 7, 2022
    Publication date: September 1, 2022
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Jong-Sik PARK, Jae-Won LIM, Yu-Sung CHOE, Hak-Kyun KIM, Je-Jun LEE, Byoung-Gu LEE, Duk-Hyun RYU, Kwan-Hee LEE, Jae-Eun LEE, Pil-Kyu PARK, Kwang-Su HWANGBO, Do-Gyun KIM, Geon-Woo MIN, Hae-Jin LIM, Min-Ki JO, Su-Ji CHOI, Bo-Hyun KANG, Jae-Woong KIM, Ji-Min JUNG, Jin-Hak KONG, Soon-O LEE, Kyu-Hyun CHOI