Patents by Inventor Soo-Ji HWANG

Soo-Ji HWANG 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: 20200127272
    Abstract: A secondary battery is disclosed. According to the present invention, when an internal pressure exceeding a certain level occurs, current may be interrupted to stop an operation of the secondary battery, thereby preventing the secondary battery from being ignited or exploded by the increase in internal pressure of the secondary battery and improving safety of the secondary battery.
    Type: Application
    Filed: May 2, 2018
    Publication date: April 23, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Sang Hun Kim, Yong Kim, Yong Su Choi, Hyung Kyun Yu, Soo Ji Hwang, Na Yoon Kim, Min Hyeong Kang
  • Publication number: 20200127273
    Abstract: A secondary battery is disclosed. According to the present invention, when an internal pressure exceeding a certain level occurs, current may be interrupted to stop an operation of the secondary battery, thereby preventing the secondary battery from being ignited or exploded by the increase in internal pressure of the secondary battery and improving safety of the secondary battery.
    Type: Application
    Filed: May 9, 2018
    Publication date: April 23, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Sang Hun Kim, Yong Kim, Yong Su Choi, Hyung Kyun Yu, Soo Ji Hwang, Na Yoon Kim, Min Hyeong Kang
  • Publication number: 20200044203
    Abstract: A method for a pouch film according to an embodiment of the present invention includes: a step of applying an adhesive on one surface of a first polymer layer; a step of depositing metal particles on the adhesive; a step of applying heat and a pressure to the deposited metal particles to sinter the metal particles and thereby forming a gas barrier layer; and a step of laminating a second polymer layer on one surface of the gas barrier layer.
    Type: Application
    Filed: November 16, 2018
    Publication date: February 6, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Soo Ji Hwang, Sang Hun Kim, Hyung Kyun Yu, Yong Su Choi, Na Yoon Kim, Min Hyeong Kang, Yong Kim
  • Publication number: 20200028128
    Abstract: Disclosed herein is a pouch-shaped battery case, including an electrode assembly, an outer coating layer, a metal barrier layer, and an inner adhesive layer sequentially stacked with one another, a first adhesive layer interposed between the outer coating layer and the metal barrier layer, a second adhesive layer interposed between the metal barrier layer and the inner adhesive layer, an upper case and a lower case sealed to one another by thermal fusion at outer edges thereof, such that the electrode assembly is mounted between the upper case and the lower case, and a gas discharge member providing gas communication between an inside and an outside of the pouch-shaped battery case, the gas discharge member being disposed within a fused portion of the pouch-shaped battery case that is formed by the inner adhesive layer of the upper case and the lower case being thermally fused to one another.
    Type: Application
    Filed: July 5, 2018
    Publication date: January 23, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Soo Ji Hwang, Yong Su Choi, Sang Hun Kim, Hyung Kyun Yu, Na Yoon Kim, Min Hyeong Kang, Yong Kim
  • Patent number: 10540068
    Abstract: A method of operating an electronic device is provided. The method includes selecting at least one particular location in content displayed on a display, identifying text included in the at least one particular location, and executing at least one program based on the text.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: January 21, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Chul Choi, Soo-Jin Park, Hyung-Jin Park, Na-Gyeom Yoo, Bo-Hyun Yu, Jae-Woong Chun, Hyo-Sun Choi, Soo-Ji Hwang
  • Patent number: 10490806
    Abstract: The present disclosure provides a positive electrode material comprising: a positive electrode active material mixture comprising a positive electrode active material prepared with an active material precursor and a lithium compound, a conductive agent and a binder; and an active material precursor as an additive, in which the active material precursor as the additive is a same substance as the active material precursor as a material of the positive electrode active material.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: November 26, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Ju Ho Chung, Gyu Ok Hwang, Soo Ji Hwang, Hong Kyu Park
  • Patent number: 10345992
    Abstract: A method and an apparatus for processing unread message unread contents in an electronic device includes displaying a plurality of unread message contents for a particular application, and if all of the unread message contents is not displayable on a single screen, automatically displaying the unread message content is a scroll motion is performed.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: July 9, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soo-Ji Hwang, Yun-Ju Lee
  • Publication number: 20190207171
    Abstract: The present disclosure relates to a method for sealing a pouch casing of a pouch-type secondary battery, which includes the steps of: a receiving step in which an electrode assembly is received in an inner space formed between an upper pouch and a lower pouch; and a sealing step in which a first pressure is applied to an outer circumferential sealing portion, where the upper pouch and the lower pouch are sealed, in the longitudinal direction, and then the pressure is relieved, wherein the sealing step is carried out by applying external force to the upper pouch in the upward direction and to the lower pouch in the downward direction, or by applying a second pressure working in perpendicular to the first pressure to the sealing portion from the inner part of the pouch casing in a direction toward the outside.
    Type: Application
    Filed: September 28, 2017
    Publication date: July 4, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Yong-Su CHOI, Sang-Hun KIM, Min-Hyeong KANG, Yong KIM, Cho-Long KIM, Hyung-Kyun YU, Ji-Hoon LEE, Soo-Ji HWANG
  • Patent number: 10319956
    Abstract: The present invention relates to a pouch case for a secondary battery and a pouch-type secondary battery comprising the same. More particularly, it relates to a pouch case for a secondary battery comprising an inner resin layer, a metal layer and an outer resin layer, wherein the inner resin layer comprises a porous non-woven fabric support having a plurality of pores and a polymer sealant filled in the pores of the non-woven fabric support; and a secondary battery comprising the same.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: June 11, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Hyung Kyun Yu, Sang Hun Kim, Won Pill Hwang, Soo Ji Hwang, Sang Suk Jung
  • Patent number: 10230129
    Abstract: A secondary battery includes a pouch case provided with an accommodation part accommodating an electrode assembly and a gas pocket part collecting a gas generated in the accommodation part by the electrode assembly, and a clamp device coupled between the accommodation part and the gas pocket part to seal a gap between the accommodation part and the gas pocket part.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: March 12, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Hyung Seok Han, Sang Suk Jung, Hyung Kyun Yu, Ki Hoon Paeng, Ji Hoon Lee, Soo Ji Hwang, Min Hyeong Kang
  • Patent number: 10224523
    Abstract: The present disclosure relates to a secondary battery pouch with an enhanced insulation property, and a method for manufacturing the same, and more specifically, to a secondary battery pouch for preventing occurrence of cracks in a sealing portion of a periphery of a pouch in a completed pouch-type secondary battery, particularly at a folded portion of the sealing portion, and a method for manufacturing the same.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: March 5, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Hyung-Kyun Yu, Sang-Hun Kim, Joo-Sung Lee, Soo-Ji Hwang, Won-Pill Hwang
  • Patent number: 10199674
    Abstract: A secondary battery includes a pouch case provided with an accommodation part accommodating an electrode assembly and a gas pocket part collecting a gas generated in the accommodation part by the electrode assembly, and a clamp device coupled between the accommodation part and the gas pocket part to seal a gap between the accommodation part and the gas pocket part.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: February 5, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Hyung Seok Han, Sang Suk Jung, Hyung Kyun Yu, Ki Hoon Paeng, Ji Hoon Lee, Soo Ji Hwang, Min Hyeong Kang
  • Publication number: 20190036148
    Abstract: Disclosed herein is a battery cell configured to have a structure in which an electrode assembly is received in a battery case together with an electrolytic solution in the state in which the battery case is sealed and in which a first electrode terminal and a second electrode terminal are located outside the battery case, wherein the electrode assembly is configured to have a structure in which a plurality of first electrode plates and a plurality of second electrode plates are stacked in the state in which separators are interposed respectively between the first electrode plates and the second electrode plates, at least one of the first and second electrode plates includes at least two unit tabs protruding outward from a main body thereof, and unit leads are coupled to the unit tabs in order to form at least one terminal unit.
    Type: Application
    Filed: November 8, 2017
    Publication date: January 31, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Na Yoon Kim, Hyung-Kyun Yu, Yong-Su Choi, Sang-Hun Kim, Ji-Hoon Lee, Soo-Ji Hwang, Min-Hyeong Kang, Yong Kim
  • Publication number: 20190020052
    Abstract: Disclosed are a secondary battery and a method for manufacturing the same. According to the present invention, since an external protrusion protruding from the outside of an exterior constituting a body of the secondary battery as a component through which a secondary battery according to a related art is electrically connected to external electric equipment is removed, the secondary battery may be reduced in volume under the same capacity.
    Type: Application
    Filed: August 29, 2017
    Publication date: January 17, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Sang Hun Kim, Yong Su Choi, Hyung Kyun Yu, Soo Ji Hwang, Na Yoon Kim, Yong Kim
  • Patent number: 10176894
    Abstract: A method includes determining whether the electronic device is attached on a human body and controlling the electronic device based on information regarding at least one of a body condition of a user, the body condition measured when the electronic device is attached, the user wearing the electronic device a position where the electronic device is attached or detached, or when the electronic device is attached or detached. An electronic device includes a memory configured to store an instruction to enable the processor to determine whether the electronic device is attached on a human body and to control the electronic device based on information regarding at least one of a body condition as measured when the electronic device is attached, the user wearing the electronic device, a position where the electronic device is attached or detached, and a time when the electronic device is attached or detached.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: January 8, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyung-Jin Park, Soo-Jin Park, Na-Gyeom Yoo, Jae-Woong Chun, Hyun-Chul Choi, Hyo-Sun Choi, Soo-Ji Hwang
  • Patent number: 10141549
    Abstract: A pouch case of the present disclosure includes an inner layer, a metallic layer, and an outer layer, wherein the inner layer includes a foaming activator containing an isocyanate-based compound which generates a gas by a foaming agent. Accordingly, since the pouch case includes the inner layer including the foaming activator, when moisture or the like is permeated thereto due to an external factor, a protective gas layer is formed between the inner layer and an electrode assembly in a short time, so that the pouch case and the electrode assembly may be protected, moisture which is permeable into the electrode assembly may be blocked, and separator cracking also may be prevented. Accordingly, explosion which may be caused by moisture permeation, separator cracking, or a short circuit by contact between the pouch case and the electrode assembly, or the like, may be prevented.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: November 27, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Soo Ji Hwang, Sang Hun Kim, Won Pill Hwang, Sang Sok Jung, Hyung Kyun Yu
  • Patent number: 10084162
    Abstract: A pouch case of the present disclosure includes an inner resin layer, a metallic layer, and an outer resin layer, wherein the resin layer(s) include(s) a foaming activator containing an isocyanate-based compound and a polyol compound. Accordingly, since the pouch case includes the inner resin layer and/or the outer resin layer including the foaming activator, when moisture or the like is permeated thereto due to an external factor, a protective layer including urethane-based foam is formed in the outer resin layer or between the inner resin layer and an electrode assembly in a short time, so that the pouch case and the electrode assembly may be protected, moisture which is permeable into the electrode assembly may be blocked, and separator cracking also may be prevented.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: September 25, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Soo Ji Hwang, Sang Hun Kim, Won Pill Hwang, Sang Sok Jung, Hyung Kyun Yu
  • Publication number: 20180264708
    Abstract: The present invention provides a manufacturing device of a battery case including a first mold including a first space part having a shape corresponding to a storage part formed therein; a second mold including a second space part having a shape corresponding to the storage part and a through-hole communicating with the second space part formed therein, and coupled to the first mold with a laminate sheet interposed therebetween; and an air pressure regulator mounted in the through-hole in a state in which the first space part and the second space part are isolated from the outside, and increasing or decreasing an air pressure of the second space part through the through-hole to stretch and modify the laminate sheet into a shape corresponding to the first space part or the second space part.
    Type: Application
    Filed: March 13, 2017
    Publication date: September 20, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Sei Woon Oh, Hyun Min Kim, Sun Hwak Woo, Yeo Kyung Yoon, Eun Ju Lee, Ji Eun Lee, Soo Ji Hwang
  • Publication number: 20180269434
    Abstract: The present disclosure relates to a pouch case for a secondary battery, and a secondary battery comprising the same, and in particular, to a pouch case for a secondary battery fabricated by laminating an inner resin layer, a middle resin layer and an outer resin layer, wherein the inner resin layer comprises a polyolefin-based resin and a thermosetting moisture absorber, and a secondary battery comprising the same.
    Type: Application
    Filed: March 30, 2016
    Publication date: September 20, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Hyung Kyun YU, Sang Hun KIM, Won Pill HWANG, Soo Ji HWANG, Sang Suk JUNG
  • Publication number: 20180243966
    Abstract: An apparatus and method are provided for forming a pouch case with improved forming quality and minimized surface contact between the forming apparatus and the pouch case in the forming process to form a pouch cup. The apparatus includes a mold on which a pouch case with a plate shape can be placed, wherein the mold bulges upwards, a chamber open at bottom to the pouch case and the mold, the chamber having an inner space in which the mold can be received by lift-up of the mold or lift-down of the chamber, wherein the chamber is seated on an edge portion of the pouch case, and the chamber is equipped with a fluid input valve at top and a fluid output valve at bottom, and a fluid supply unit configured to supply a fluid via the fluid input valve to carry out pressure forming of the pouch case.
    Type: Application
    Filed: April 11, 2017
    Publication date: August 30, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Sei-Woon Oh, Sun-Hwak Woo, Soo-Ji Hwang, Hyun-Min Kim, Eun-Ju Lee