Patents by Inventor Seung-wan Song

Seung-wan Song 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: 20240136586
    Abstract: The present disclosure relates to a flame retardant or non-flammable liquid electrolyte and a lithium secondary battery including the same, wherein the liquid electrolyte is flame retardant or non-flammable and capable of preventing accidents such as a lithium secondary battery being on fire, catching fire, or exploding from occurring, thereby significantly improving battery safety, is capable of obtaining increased battery energy density by allowing high-voltage charge, is capable of rapid charge, and is capable of maintaining excellent battery performance for a long period of time.
    Type: Application
    Filed: February 8, 2022
    Publication date: April 25, 2024
    Inventors: Seung-Wan SONG, Kihun AN
  • Publication number: 20240136525
    Abstract: An anode active material and a high-capacity secondary battery for high speed charging including the same are described. When an anode active material including a composite material in which a high-capacity silicon-based anode active material and a graphite active material capable of enabling high-speed charging by increasing the interlayer distance are mixed is used as an anode, the high-speed charging performance of a secondary battery can be improved and the capacity thereof can be increased, and a secondary battery that can be mounted on small and medium-sized electronic devices such as portable phones and the like, various electric mobilities including commercial electric vehicles, and energy storage systems (ESS) can be provided.
    Type: Application
    Filed: October 10, 2023
    Publication date: April 25, 2024
    Inventors: Seung-Wan SONG, Dong Guk Kang, Thi Hai Yen TRAN
  • Patent number: 11942025
    Abstract: A display device includes a substrate, a plurality of pixel electrodes on the substrate and spaced apart from each other, a plurality of light-emitting elements on the plurality of pixel electrodes, respectively, and a common electrode layer on the plurality of light-emitting elements and to which a common voltage is applied. The plurality of light-emitting elements include a first light-emitting element that is configured to emit first light according to a first driving current and a second light-emitting element that is configured to emit second light according to a second driving current. An active layer of the first light-emitting element is the same as an active layer of the second light-emitting element.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: March 26, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Wan Kim, Seung Geun Lee, Sang Jo Kim, Su Jeong Kim, Young Jin Song, Byung Ju Lee
  • Patent number: 11855259
    Abstract: The present invention relates to a lithium secondary battery electrolyte and a lithium secondary battery including the same and, more specifically, to a flame retardant or nonflammable lithium secondary battery electrolyte having excellent stability even at a high voltage and a lithium secondary battery including the same.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: December 26, 2023
    Assignees: RENEWABLE ENERGY PLATFORM CO., LTD., THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITY
    Inventors: Hee Cheol Kim, Younggil Kwon, Eui Hyeong Hwang, Ji Hee Jang, Sang Ho Lee, Seung Wan Song, Quang Hieu Pham
  • Patent number: 11855260
    Abstract: Disclosed is a nonincendive electrolyte for lithium secondary battery, the electrolyte using an organic solvent mixture including a first solvent containing fluorine and sulfur, a second solvent that is a linear carbonate-based compound containing fluorine, a third solvent that is a linear ester-based compound containing fluorine, and a fourth solvent that is a cyclic carbonate-based compound. Thus, the electrolyte is nonflammable or flame-retardant, thereby preventing a lithium secondary battery from catching on fire or exploding. That is, the electrolyte greatly improves the safety of a lithium secondary battery, allows the high voltage charge of a lithium secondary battery, and prevents the degradation of battery performance of a lithium secondary battery. In addition, a lithium secondary battery including the electrolyte is disclosed.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: December 26, 2023
    Assignee: The Industry & Academic Cooperation in Chungnam National University (IAC)
    Inventors: Seung-Wan Song, Kihun An, Sehyun Kwak
  • Patent number: 11817584
    Abstract: The present invention relates to a binder for a lithium secondary battery, an electrode comprising the same, and a lithium secondary battery comprising the electrode. More specifically, the present invention provides a binder for a lithium secondary battery having excellent cycle life and high energy density, an anode for a lithium secondary battery comprising the same, and a lithium secondary battery prepared therefrom.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: November 14, 2023
    Assignee: IPI TECH INC.
    Inventors: Seung Wan Song, Hieu Quang Pham, Hyun Min Jung
  • Patent number: 11764404
    Abstract: The electrolyte for a lithium secondary battery includes: a lithium salt; a solvent; and a functional additive, wherein the functional additive includes: at least one high-voltage additive selected from a group consisting of lithium bis(phthalato)borate, represented by the following formula 1; hexafluoroglutaric anhydride, represented by the following formula 2; and phosphoric acid tris(2,2,2-trifluoroethyl)ester, represented by the following formula 3:
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: September 19, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, The Industry & Academic Cooperation in Chungnam National University (IAC)
    Inventors: Ko Eun Kim, Seung Min Oh, Yoon Sung Lee, Jun Ki Rhee, Sung Ho Ban, Seung Wan Song, Gyeong Jun Chung
  • Publication number: 20230291012
    Abstract: Disclosed are an electrolytic solution for lithium secondary batteries capable of improving lifespan characteristics of a lithium secondary battery under a high voltage condition and a lithium secondary battery including the same. The electrolytic solution includes a lithium salt, a solvent, and a functional additive, and the functional additive includes a high-voltage additive including a first high-voltage additive, perfluoro-15-crown-5-ether, represented by [Formula 1] and a second high-voltage additive, fluoroethylene carbonate, represented by [Formula 2].
    Type: Application
    Filed: November 7, 2022
    Publication date: September 14, 2023
    Inventors: Ko Eun Kim, Seung Min Oh, Yoon Sung Lee, Hui Beom Nam, Jun Ki Rhee, Sung Ho Ban, Seung Wan Song, Min Geun Oh
  • Publication number: 20230291011
    Abstract: Disclosed are an electrolytic solution for lithium secondary batteries capable of improving lifespan characteristics of a lithium secondary battery under a high voltage condition and a lithium secondary battery including the same. The electrolytic solution may includes a lithium salt, a solvent, and a functional additive. In particular, the functional additive includes a high-voltage additive including a first high-voltage additive, e.g., hexafluoroglutaric anhydride, and a second high-voltage additive, e.g., fluoroethylene carbonate.
    Type: Application
    Filed: October 27, 2022
    Publication date: September 14, 2023
    Inventors: Ko Eun Kim, Seung Min Oh, Yoon Sung Lee, Sung Ho Ban, Jun Ki Rhee, Hui Beom Nam, Seung Wan Song, Min Geun Oh, Se Hyun Kwak
  • Publication number: 20220320582
    Abstract: Disclosed are an electrolyte solution and an additive thereof, which may improve electrochemical properties of a lithium secondary battery.
    Type: Application
    Filed: November 9, 2021
    Publication date: October 6, 2022
    Inventors: Jun Ki Rhee, Yoon Sung Lee, Sung Ho Ban, Seung Min Oh, Ko Eun Kim, Seung Wan Song, Gyeong Jun Chung
  • Publication number: 20220131191
    Abstract: The electrolyte solution for a lithium secondary battery includes: a lithium salt, a solvent, and a functional additive, wherein the functional additive contains a bis(2,2,2-trifluoroethyl) carbonate, expressed by Formula 1 below:
    Type: Application
    Filed: August 11, 2021
    Publication date: April 28, 2022
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation, The Industry & Academic Cooperation in Chungnam National University (IAC)
    Inventors: Yoon Ji Lee, Yoon Sung Lee, Seung Ho Ahn, Seung Wan Song
  • Publication number: 20220115702
    Abstract: The electrolyte for a lithium secondary battery includes: a lithium salt; a solvent; and a functional additive, wherein the functional additive includes: at least one high-voltage additive selected from a group consisting of lithium bis(phthalato)borate, represented by the following formula 1; hexafluoroglutaric anhydride, represented by the following formula 2; and phosphoric acid tris(2,2,2-trifluoroethyl)ester, represented by the following formula 3:
    Type: Application
    Filed: June 3, 2021
    Publication date: April 14, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, The Industry & Academic Cooperation in Chungnam National University (IAC)
    Inventors: Ko Eun Kim, Seung Min Oh, Yoon Sung Lee, Jun Ki Rhee, Sung Ho Ban, Seung Wan Song, Gyeong Jun Chung
  • Publication number: 20220013811
    Abstract: Disclosed is a nonincendive electrolyte for lithium secondary battery, the electrolyte using an organic solvent mixture including a first solvent containing fluorine and sulfur, a second solvent that is a linear carbonate-based compound containing fluorine, a third solvent that is a linear ester-based compound containing fluorine, and a fourth solvent that is a cyclic carbonate-based compound. Thus, the electrolyte is nonflammable or flame-retardant, thereby preventing a lithium secondary battery from catching on fire or exploding. That is, the electrolyte greatly improves the safety of a lithium secondary battery, allows the high voltage charge of a lithium secondary battery, and prevents the degradation of battery performance of a lithium secondary battery. In addition, a lithium secondary battery including the electrolyte is disclosed.
    Type: Application
    Filed: July 6, 2021
    Publication date: January 13, 2022
    Applicant: The Industry & Academic Corporation in Changnam National University (IAC)
    Inventors: Seung-Wan SONG, Kihun An, Sehyun Kwak
  • Publication number: 20210151796
    Abstract: An electrolytic solution is disclosed. The electrolytic solution can be used, for example, in a lithium secondary battery.
    Type: Application
    Filed: May 26, 2020
    Publication date: May 20, 2021
    Inventors: Yoon Sung Lee, Yeol Mae Yeo, Seung Min Oh, Ik Kyu Kim, Ji Eun Lee, Nam Hyeong Kim, Dong Jun Kim, Seung Wan Song, Gyeong Jun Chung
  • Publication number: 20210135285
    Abstract: The present invention relates to a lithium secondary battery electrolyte and a lithium secondary battery including the same and, more specifically, to a flame retardant or nonflammable lithium secondary battery electrolyte having excellent stability even at a high voltage and a lithium secondary battery including the same.
    Type: Application
    Filed: July 31, 2018
    Publication date: May 6, 2021
    Inventors: HEE CHEOL KIM, YOUNGGIL KWON, EUI HYEONG HWANG, JI HEE JANG, SANG HO LEE, SEUNG WAN SONG, QUANG HIEU PHAM
  • Publication number: 20210043935
    Abstract: The present invention relates to a binder for a lithium secondary battery, an electrode comprising the same, and a lithium secondary battery comprising the electrode. More specifically, the present invention provides a binder for a lithium secondary battery having excellent cycle life and high energy density, an anode for a lithium secondary battery comprising the same, and a lithium secondary battery prepared therefrom.
    Type: Application
    Filed: January 21, 2019
    Publication date: February 11, 2021
    Inventors: Seung Wan SONG, Hieu QUANG PHAM, Hyun Min JUNG
  • Publication number: 20100233074
    Abstract: Provided is a method for preparing transition metal oxide nanoparticles from a transition metal as a reactant. The method includes dissolving the transition metal into aqueous hydrogen peroxide to provide peroxi-metallate solution, and then adding a reactive solution containing an alcohol, water and an acid thereto to perform hydrothermal reaction. More particularly, the method for preparing transition metal oxide particles includes: dissolving transition metal powder as a reactant into aqueous hydrogen peroxide to provide a peroxi-metallate solution with a molar concentration of transition metal of 0.001-0.2 M; adding a reactive solution containing an alcohol, water and an acid to the peroxi-metallate solution to provide a mixed solution; and subjecting the mixed solution to hydrothermal reaction to provide transition metal oxide nanoparticles.
    Type: Application
    Filed: December 30, 2009
    Publication date: September 16, 2010
    Applicant: The Industry & Academic Cooperation in Chugnam National University
    Inventors: Seung-Wan SONG, Ho Kyung LEE, In Young CHOI, Yun-Ho NA, Cao Cuong NGUYEN
  • Patent number: 6797143
    Abstract: A reactive solution with an amount of 250 mL is made of distilled water and LiOH·H2O (4M) melted in the distilled water. Then, the reactive solution is put in a flow-type reactor, and is flown in between an anode electrode and a cathode electrode set in the flow-type reactor at a given temperature and a given flow rate. Then, a given voltage is applied between the anode electrode and the cathode electrode with dropping an oxidizer of hydrogen peroxide (H2O2) into the reactive solution to form a lithium-cobalt oxide thin film on the anode electrode.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: September 28, 2004
    Assignee: Tokyo Institute of Technology
    Inventors: Masahiro Yoshimura, Seung-wan Song, Tomoaki Watanabe
  • Publication number: 20040111680
    Abstract: A method of creating a ROM soft IP that can be built in a micro controller soft IP and a recording medium having a program for executing the same method are provided. The ROM soft IP capable of being built in the MPU core IP, thereby an IP designer can easily design a ROM built-in MPU soft IP. In addition, a user of the MPU core IP can create the ROM soft IP that ROM program data having a size equal to that of the program can be inserted thereinto.
    Type: Application
    Filed: October 31, 2003
    Publication date: June 10, 2004
    Inventors: Tae Young Lim, Myung Shin Kwak, Jong Dae Kim, Yang Ki Cho, Seung Wan Song, Hi Seok Kim
  • Publication number: 20030155251
    Abstract: A reactive solution with an amount of 250 mL is made of distilled water and LiOH.H2O (4M) melted in the distilled water. Then, the reactive solution is put in a flow-type reactor, and is flown in between an anode electrode and a cathode electrode set in the flow-type reactor at a given temperature and a given flow rate. Then, a given voltage is applied between the anode electrode and the cathode electrode with dropping an oxidizer of hydrogen peroxide (H2O2) into the reactive solution to form a lithium-cobalt oxide thin film on the anode electrode.
    Type: Application
    Filed: February 28, 2003
    Publication date: August 21, 2003
    Inventors: Masahiro Yoshimura, Seung-Wan Song, Tomoaki Watanabe