Patents by Inventor Joong-Hun Kim

Joong-Hun 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).

  • Publication number: 20210257649
    Abstract: A secondary battery having an improved current-collecting structure is provided. In an example embodiment, the secondary battery includes an electrode assembly including a plurality of unit electrode plates each including a pair of non-coating portion tabs at a first side and a plurality of separators each located between the unit electrode plates; and a current collector plate welded to the non-coating portion tabs, and the current collector plate is welded in a state in which the pair of non-coating portion tabs are bent in opposite directions. The pair of non-coating portion tabs are bent in opposite directions to then be welded to the current collector plate, and welding may be complementarily performed, thereby securing electrical stability.
    Type: Application
    Filed: November 10, 2020
    Publication date: August 19, 2021
    Inventors: Chang Hun CHO, Sung Han KIM, Joong Hun KIM, Wook Su LEE
  • Publication number: 20200006742
    Abstract: Various embodiments of the present invention relate to a secondary battery and aim to simplify the structure of a terminal part to minimize the space taken up by parts inside a case. To this end, provided in the present invention is a secondary battery comprising: an electrode assembly for a prismatic secondary battery; a case for a prismatic secondary battery for accommodating the electrode assembly; a cap plate coupled to the case; and a terminal part which is coupled to a side portion of the electrode assembly and is extendedly bent from the side portion to an upper portion of the electrode assembly, wherein the terminal part includes a bent part which is bent upward from an end part connected to the upper portion of the electrode assembly to protrude out of the cap plate.
    Type: Application
    Filed: February 14, 2018
    Publication date: January 2, 2020
    Inventor: Joong Hun KIM
  • Publication number: 20200006721
    Abstract: A secondary battery has a simplified structure of a terminal part to reduce the number of parts, and terminal parts can be directly connected without requiring a separate part (for example, a bus bar) for mutual electrical connection between a battery and another battery. A secondary battery comprises: an electrode assembly, a case for accommodating the electrode assembly; a cap plate coupled to the case; and a terminal part that is electrically connected to the electrode assembly and is extended to penetrate through the cap plate, wherein the terminal part comprises a first area having a first thickness that is electrically connected to the electrode assembly from the inside of the case, and a second area having a second thickness that is thicker than the first thickness and is electrically connected to the first area from the outer side of the case.
    Type: Application
    Filed: February 6, 2018
    Publication date: January 2, 2020
    Inventor: Joong Hun KIM
  • Patent number: 8822068
    Abstract: A pouch type secondary battery which can prevent a cut portion from electrically contacting a protective circuit module, thereby preventing an electrical short circuit and acceleration of corrosion of a core material and enhancing safety includes an electrode assembly having a first electrode plate, a second electrode plate, and a separator; a pouch case made of a flexible material, and having a container, insulated at least on its inner surface and accommodating the electrode assembly, and sealing portions along an edge of the container, the sealing portions including a first sealing portion through which electrode taps of the electrode assembly extend from the pouch case, and a second sealing portion and a third sealing portion respectively positioned at opposite sides of the first sealing portion, the second an third sealing portions being folded at least one time; a protective circuit module connected to the electrode tips and mounted on an outer surface of the first sealing portion; and a short circuit p
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: September 2, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: In-Won Hwang, Hyung-Bok Lee, Joong-Hun Kim, Jae-Hoon Choi
  • Patent number: 8394524
    Abstract: A battery unit and a lithium secondary battery employing the same are provided. The battery unit includes a positive electrode plate having a positive current collector and a positive active material layer formed on at least one plane of the positive current collector, a positive electrode lead electrically connected with the positive current collector, a negative electrode plate having a negative current collector and a negative active material layer formed on at least one plane of the negative current collector, a negative electrode lead electrically connected with the negative current collector, and a separator interposed between the positive electrode plate and the negative electrode plate, having a width greater than that of each electrode plate, and having different widths of protruding portions which stick out on either side of the electrode plate.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: March 12, 2013
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Joong-Hun Kim, Hyung-Bok Lee
  • Publication number: 20120225336
    Abstract: A battery unit and a lithium secondary battery employing the same are provided. The battery unit includes a positive electrode plate having a positive current collector and a positive active material layer formed on at least one plane of the positive current collector, a positive electrode lead electrically connected with the positive current collector, a negative electrode plate having a negative current collector and a negative active material layer formed on at least one plane of the negative current collector, a negative electrode lead electrically connected with the negative current collector, and a separator interposed between the positive electrode plate and the negative electrode plate, having a width greater than that of each electrode plate, and having different widths of protruding portions which stick out on either side of the electrode plate.
    Type: Application
    Filed: March 13, 2012
    Publication date: September 6, 2012
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Joong-Hun Kim, Hyung-Bok Lee
  • Patent number: 8158279
    Abstract: A battery unit and a lithium secondary battery employing the same are provided. The battery unit includes a positive electrode plate having a positive current collector and a positive active material layer formed on at least one plane of the positive current collector, a positive electrode lead electrically connected with the positive current collector, a negative electrode plate having a negative current collector and a negative active material layer formed on at least one plane of the negative current collector, a negative electrode lead electrically connected with the negative current collector, and a separator interposed between the positive electrode plate and the negative electrode plate, having a width greater than that of each electrode plate, and having different widths of protruding portions which stick out on either side of the electrode plate.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: April 17, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Joong-Hun Kim, Hyung-Bok Lee
  • Publication number: 20110117394
    Abstract: A pouch type secondary battery which can prevent a cut portion from electrically contacting a protective circuit module, thereby preventing an electrical short circuit and acceleration of corrosion of a core material and enhancing safety includes an electrode assembly having a first electrode plate, a second electrode plate, and a separator; a pouch case made of a flexible material, and having a container, insulated at least on its inner surface and accommodating the electrode assembly, and sealing portions along an edge of the container, the sealing portions including a first sealing portion through which electrode taps of the electrode assembly extend from the pouch case, and a second sealing portion and a third sealing portion respectively positioned at opposite sides of the first sealing portion, the second an third sealing portions being folded at least one time; a protective circuit module connected to the electrode tips and mounted on an outer surface of the first sealing portion; and a short circuit p
    Type: Application
    Filed: January 21, 2011
    Publication date: May 19, 2011
    Applicant: Samsung SDI Co., Ltd.
    Inventors: In-Won Hwang, Hyung-Bok Lee, Joong-Hun Kim, Jae-Hoon Choi
  • Patent number: 7875383
    Abstract: A pouch type secondary battery which can prevent a cut portion from electrically contacting a protective circuit module, thereby preventing an electrical short circuit and acceleration of corrosion of a core material and enhancing safety includes an electrode assembly having a first electrode plate, a second electrode plate, and a separator; a pouch case made of a flexible material, and having a container, insulated at least on its inner surface and accommodating the electrode assembly, and sealing portions along an edge of the container, the sealing portions including a first sealing portion through which electrode taps of the electrode assembly extend from the pouch case, and a second sealing portion and a third sealing portion respectively positioned at opposite sides of the first sealing portion, the second an third sealing portions being folded at least one time; a protective circuit module connected to the electrode taps and mounted on an outer surface of the first sealing portion; and a short circuit p
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: January 25, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: In-Won Hwang, Hyung-Bok Lee, Joong-Hun Kim, Jae-Hoon Choi
  • Patent number: 7585589
    Abstract: A pouch-type lithium secondary battery includes a battery unit having a positive plate, a separator, and a negative plate; a plurality of electrode tabs drawn from the positive and negative plates, respectively; a case having a space for receiving the battery unit and upper and lower sealing surfaces which are thermally fused to each other; a short-circuit prevention tape attached along the upper and lower sealing surfaces; and a polymer material coated on at least a portion of each electrode tab corresponding to the upper and lower sealing surfaces. A portion of the insulating tape exposed outside the sealing surface of the case is extended and the extended portion of the insulating tape comes in contact with the end portion of the sealing surface after being folded. Therefore, preventing an electrical short circuit between the electrode tab and the intermediate layer of the metal case is achieved.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: September 8, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Joong-Hun Kim
  • Patent number: 7491471
    Abstract: An electrolyte for a lithium secondary battery which has a non-aqueous organic solvent including a ?-butyrolactone and optionally a cyclic carbonate, an ester compound having an electron withdrawing group, and at least two salts. The lithium secondary battery including the electrolyte has good safety and good storage characteristics at high temperature.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: February 17, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Takitaro Yamaguchi, Ryuichi Shimizu, Hyun-Jei Chung, Cheol-Soo Jung, Hyeong-Gon Noh, Eui-Hwan Song, Joong-Hun Kim
  • Patent number: 7201998
    Abstract: A pouch-type lithium secondary battery includes a battery unit having a positive plate, a separator, and a negative plate; a plurality of electrode tabs, drawn from the positive and negative plates, respectively; a case, formed with a space receiving the battery unit and with upper and lower sealing surfaces thermally fused to each other; and an insulating tape wrapping the electrode tabs, wherein a portion of the insulating tape interposed between the upper and lower sealing surfaces is thermally fused to the upper and lower sealing surfaces, and an end portion of the insulating tape is exposed outside the case together with the electrode tabs and positioned outside the upper or lower sealing surface after being folded. A portion of the insulating tape exposed outside the sealing surface of the case is extended and the extended portion of the insulating tape comes in contact with the end portion of the sealing surface after being folded.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: April 10, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Joong-Hun Kim
  • Patent number: 7122271
    Abstract: A battery unit including an electrode unit including a positive electrode plate, a separator, and a negative electrode plate, wherein the positive electrode plate, the separator, and the negative electrode plate are disposed in sequential order; electrode leads extending from each of the positive and negative electrode plates of the electrode unit; and a finishing tape provided on an outermost surface of the electrode unit, including an adhesive layer having a low adhesive strength, and a polymer film layer coated with the adhesive layer, wherein the finishing tape is detachably attached to the electrode unit so as to detach in response to the electrode unit deforming.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: October 17, 2006
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Joong-Hun Kim, Hyung Bok Lee, Hyun-Jei Chung, Tae-Shik Earmme, Wook-Kyu Kang
  • Publication number: 20060019156
    Abstract: A pouch-type lithium secondary battery includes a battery unit having a positive plate, a separator, and a negative plate; a plurality of electrode tabs drawn from the positive and negative plates, respectively; a case having a space for receiving the battery unit and upper and lower sealing surfaces which are thermally fused to each other; a short-circuit prevention tape attached along the upper and lower sealing surfaces; and a polymer material coated on at least a portion of each electrode tab corresponding to the upper and lower sealing surfaces. A portion of the insulating tape exposed outside the sealing surface of the case is extended and the extended portion of the insulating tape comes in contact with the end portion of the sealing surface after being folded. Therefore, preventing an electrical short circuit between the electrode tab and the intermediate layer of the metal case is achieved.
    Type: Application
    Filed: July 22, 2005
    Publication date: January 26, 2006
    Applicant: Samsung SDI Co., Ltd.
    Inventor: Joong-Hun Kim
  • Publication number: 20050084749
    Abstract: A pouch type secondary battery which can prevent a cut portion from electrically contacting a protective circuit module, thereby preventing an electrical short circuit and acceleration of corrosion of a core material and enhancing safety includes an electrode assembly having a first electrode plate, a second electrode plate, and a separator; a pouch case made of a flexible material, and having a container, insulated at least on its inner surface and accommodating the electrode assembly, and sealing portions along an edge of the container, the sealing portions including a first sealing portion through which electrode taps of the electrode assembly extend from the pouch case, and a second sealing portion and a third sealing portion respectively positioned at opposite sides of the first sealing portion, the second an third sealing portions being folded at least one time; a protective circuit module connected to the electrode taps and mounted on an outer surface of the first sealing portion; and a short circuit p
    Type: Application
    Filed: September 9, 2004
    Publication date: April 21, 2005
    Applicant: Samsung SDI Co. Ltd.
    Inventors: In-Won Hwang, Hyung-Bok Lee, Joong-Hun Kim, Jae-Hoon Chol
  • Publication number: 20050014072
    Abstract: An electrolyte for a lithium secondary battery which has a non-aqueous organic solvent including a ?-butyrolactone and optionally a cyclic carbonate, an ester compound having an electron withdrawing group, and at least two salts. The lithium secondary battery including the electrolyte has good safety and good storage characteristics at high temperature.
    Type: Application
    Filed: July 15, 2004
    Publication date: January 20, 2005
    Inventors: Takitaro Yamaguchi, Ryuichi Shimizu, Hyun-Jei Chung, Cheol-Soo Jung, Hyeong-Gon Noh, Eui-Hwan Song, Joong-Hun Kim
  • Publication number: 20040142236
    Abstract: A battery unit including an electrode unit including a positive electrode plate, a separator, and a negative electrode plate, wherein the positive electrode plate, the separator, and the negative electrode plate are disposed in sequential order; electrode leads extending from each of the positive and negative electrode plates of the electrode unit; and a finishing tape provided on an outermost surface of the electrode unit, including an adhesive layer having a low adhesive strength, and a polymer film layer coated with the adhesive layer, wherein the finishing tape is detachably attached to the electrode unit so as to detach in response to the electrode unit deforming.
    Type: Application
    Filed: January 14, 2004
    Publication date: July 22, 2004
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Joong-Hun Kim, Hyung Bok Lee, Hyun-Jei Chung, Tae-Shik Earmme, Wook-Kyu Kang
  • Publication number: 20040121231
    Abstract: A pouch-type lithium secondary battery includes a battery unit having a positive plate, a separator, and a negative plate; a plurality of electrode tabs, drawn from the positive and negative plates, respectively; a case, formed with a space receiving the battery unit and with upper and lower sealing surfaces thermally fused to each other; and an insulating tape wrapping the electrode tabs, wherein a portion of the insulating tape interposed between the upper and lower sealing surfaces is thermally fused to the upper and lower sealing surfaces, and an end portion of the insulating tape is exposed outside the case together with the electrode tabs and positioned outside the upper or lower sealing surface after being folded. A portion of the insulating tape exposed outside the sealing surface of the case is extended and the extended portion of the insulating tape comes in contact with the end portion of the sealing surface after being folded.
    Type: Application
    Filed: December 12, 2003
    Publication date: June 24, 2004
    Applicant: Samsung SDI Co., Ltd
    Inventor: Joong-Hun Kim
  • Publication number: 20040009403
    Abstract: A battery unit and a lithium secondary battery employing the same are provided. The battery unit includes a positive electrode plate having a positive current collector and a positive active material layer formed on at least one plane of the positive current collector, a positive electrode lead electrically connected with the positive current collector, a negative electrode plate having a negative current collector and a negative active material layer formed on at least one plane of the negative current collector, a negative electrode lead electrically connected with the negative current collector, and a separator interposed between the positive electrode plate and the negative electrode plate, having a width greater than that of each electrode plate, and having different widths of protruding portions which stick out on either side of the electrode plate.
    Type: Application
    Filed: May 30, 2003
    Publication date: January 15, 2004
    Inventors: Joong-Hun Kim, Hyung-Bok Lee