Patents by Inventor Samuel Seo

Samuel Seo 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: 20240088432
    Abstract: An embodiment sulfur dioxide-based inorganic electrolyte is provided in which the sulfur dioxide-based inorganic electrolyte is represented by a chemical formula M·(A1·Cl(4-x)Fx)z·ySO2. In this formula, M is a first element selected from the group consisting of Li, Na, K, Ca, and Mg, A1 is a second element selected from the group consisting of Al, Fe, Ga, and Cu, x satisfies a first equation 0?x?4, y satisfies a second equation 0?y?6, and z satisfies a third equation 1?z?2.
    Type: Application
    Filed: April 12, 2023
    Publication date: March 14, 2024
    Inventors: Kyu Ju Kwak, Won Keun Kim, Eun Ji Kwon, Samuel Seo, Yeon Jong Oh, Kyoung Han Ryu, Dong Hyun Lee, Han Su Kim, Ji Whan Lee, Seong Hoon Choi, Seung Do Mun
  • Patent number: 11916253
    Abstract: Disclosed are an electrolyte membrane for a lithium-air battery, a method of manufacturing the same, a cathode for a lithium-air battery, a method of manufacturing the same, and a lithium-air battery including the electrolyte membrane and the cathode. Particularly, the lithium-air battery includes i) an electrolyte membrane, which is manufactured using an inorganic melt admixture including two or more nitrogen-oxide compounds and thus may have a very low eutectic point, and ii) a cathode, which is manufactured by reducing a metal at a fast speed on a carbon material. As such, the lithium-air battery is capable of stably operating even at low temperatures and providing high power output.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: February 27, 2024
    Assignees: Hyundai Motor Company, Kia Corporation, Ulsan National Institute of Science and Technology
    Inventors: Eun Ji Kwon, Samuel Seo, Gwang Seok Oh, Seok Ju Kang, Kyung Eun Baek
  • Publication number: 20230411697
    Abstract: An electrolyte includes a plurality of additives to form a multi-layered solid electrolyte interface layer. In addition, a lithium secondary battery including the same electrolyte is proposed.
    Type: Application
    Filed: December 23, 2022
    Publication date: December 21, 2023
    Applicants: HYUNDAI MOTORS COMPANY, KIA CORPORATION, Korea Advanced Institute of Science and Technology
    Inventors: Eun Ji Kwon, Won Keun Kim, Samuel Seo, Yeon Jong Oh, Kyu Ju Kwak, Dong Hyun Lee, Kyoung Han Ryu, Jun Kyu Park, Nam Soon Choi, Jeong A Lee, Sae Hun Kim
  • Publication number: 20230344008
    Abstract: Disclosed are a carbonate electrolyte and a lithium secondary battery including the same, in which the carbonate electrolyte includes a specific type of lithium salt at a high concentration equal to or greater than an appropriate level, thereby improving durability of the lithium secondary battery.
    Type: Application
    Filed: March 7, 2023
    Publication date: October 26, 2023
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Yeon Jong OH, Won Keun KIM, Eun Ji KWON, Kyu Ju KWAK, Dong Hyun LEE, Kyoung Han RYU, Samuel SEO
  • Publication number: 20230344009
    Abstract: Disclosed is an electrolyte for a secondary battery that includes an ionic liquid containing an ether functional group, thereby providing effects of lowering the viscosity and improving lithium ion conductivity even when a molecular weight is increased.
    Type: Application
    Filed: December 7, 2022
    Publication date: October 26, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Kyu Ju Kwak, Won Keun Kim, Eun Ji Kwon, Samuel Seo, Dong Hyun Lee, Kyoung Han Ryu, Yeon Jong Oh, Je Seung Lee, Dae Won Kim, Su Yeon Lee
  • Publication number: 20230327094
    Abstract: The present disclosure relates to a lithium secondary battery anode provided with an interfacial layer including a coordination compound and a method of manufacturing the same. The anode may include an anode current collector layer, an anode material layer disposed on the anode current collector layer and including lithium metal, and an interfacial layer disposed on the anode material layer and including a coordination compound.
    Type: Application
    Filed: November 1, 2022
    Publication date: October 12, 2023
    Applicants: Hyundai Motor Company, Kia Corporation, THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Samuel Seo, Won Keun Kim, Jong Chan Song, Kyoung Han Ryu, Yeon Jong Oh, Zhenan Bao, Zhiao Yu
  • Publication number: 20230327196
    Abstract: A gel polymer electrolyte manufactured through an in-situ crosslinking reaction. The gel polymer electrolyte may include a porous membrane in which a fluorine-based compound, a lithium salt, and a crosslinking agent including a graphene-based compound are crosslinked.
    Type: Application
    Filed: November 16, 2022
    Publication date: October 12, 2023
    Inventors: Eun Ji Kwon, Won Keun Kim, Samuel Seo, Yeon Jong Oh, Kyu Ju Kwak, Kyoung Han Ryu, Dong Hyun Lee, Jong Chan Lee, Da Un Jeong, Jin Sol Yook, Dong Gi Hong
  • Publication number: 20230318025
    Abstract: The present disclosure relates to an electrolyte for a lithium secondary battery, including an ionic liquid, and a lithium secondary battery having the same. Specifically, the electrolyte may include an ionic liquid containing a cation and an anion, and a lithium salt, and the cation may include a functional group containing an oxygen element.
    Type: Application
    Filed: December 12, 2022
    Publication date: October 5, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Kyu Ju Kwak, Won Keun Kim, Eun Ji Kwon, Jin Hyeok Cha, Yeon Jong Oh, Ji Hye Baek, Dong Hyun Lee, Kyoung Han Ryu, Samuel Seo
  • Publication number: 20230069409
    Abstract: Disclosed are a polymer gel electrolyte composition, a polymer gel electrolyte prepared from the composition, and a lithium secondary battery including the electrolyte are proposed. The polymer gel electrolyte may be formed by thermal cross-linking of the polymer gel electrolyte composition including an ether-based organic solvent with excellent compatibility with a lithium metal anode, a nitrate capable of forming a stable film on an electrode surface, and an appropriate ratio of a cross-linking agent having two or more acrylate functional groups. Therefore, the polymer gel electrolyte can smoothly penetrate the anode to form an ion transport channel and improve oxidation stability through interaction between the polymer and the solvent thereof, thereby improving battery life.
    Type: Application
    Filed: August 30, 2022
    Publication date: March 2, 2023
    Inventors: Eun Ji Kwon, Samuel Seo, Won Kuen Kim, Kyoung Han Ryu, Kyu Ju Kwak, Yeon Jong Oh, Dong Won Kim, Ji Wan Kim, Bo Hyung Lee, Myung Keun Oh, Hyun Sik Woo
  • Publication number: 20210376424
    Abstract: Disclosed are an electrolyte membrane for a lithium-air battery, a method of manufacturing the same, a cathode for a lithium-air battery, a method of manufacturing the same, and a lithium-air battery including the electrolyte membrane and the cathode. Particularly, the lithium-air battery includes i) an electrolyte membrane, which is manufactured using an inorganic melt admixture including two or more nitrogen-oxide compounds and thus may have a very low eutectic point, and ii) a cathode, which is manufactured by reducing a metal at a fast speed on a carbon material. As such, the lithium-air battery is capable of stably operating even at low temperatures and providing high power output.
    Type: Application
    Filed: December 21, 2020
    Publication date: December 2, 2021
    Inventors: Eun Ji Kwon, Samuel Seo, Gwang Seok Oh, Seok Ju Kang, Kyung Eun Baek
  • Patent number: 11069900
    Abstract: The present disclosure relates to a positive electrode for lithium air batteries, a method of manufacturing the positive electrode, and a lithium air battery including the positive electrode, and more particularly to a positive electrode for lithium air batteries, wherein the positive electrode is manufactured through a dry process instead of a conventional wet process and a mixture of a positive electrode active material and a binder is ball-milled under specific conditions, thereby reducing or preventing a swelling phenomenon due to a solvent and increasing the force of coupling between the positive electrode active material and the binder, whereby it is possible to manufacture a high-density electrode and to improve the durability of the electrode, and wherein the lifespan of a lithium air battery is increased when the positive electrode is applied to the battery.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: July 20, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Dae Gun Jin, Eun Ji Kwon, Jee Youn Hwang, Ji Hoon Jang, Gwang Seok Oh, Won Keun Kim, Samuel Seo
  • Publication number: 20200381779
    Abstract: Disclosed herein is a gel electrolyte composition and a method of manufacturing a gel electrolyte using the same, and more particularly to a method of manufacturing a gel electrolyte for a lithium-air battery, which is in a gel phase using a gel electrolyte composition including inorganic particles including silica.
    Type: Application
    Filed: December 4, 2019
    Publication date: December 3, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Eun Ji KWON, Gwang Seok OH, Samuel SEO
  • Publication number: 20200144629
    Abstract: The present disclosure relates to a positive electrode for lithium air batteries, a method of manufacturing the positive electrode, and a lithium air battery including the positive electrode, and more particularly to a positive electrode for lithium air batteries, wherein the positive electrode is manufactured through a dry process instead of a conventional wet process and a mixture of a positive electrode active material and a binder is ball-milled under specific conditions, thereby reducing or preventing a swelling phenomenon due to a solvent and increasing the force of coupling between the positive electrode active material and the binder, whereby it is possible to manufacture a high-density electrode and to improve the durability of the electrode, and wherein the lifespan of a lithium air battery is increased when the positive electrode is applied to the battery.
    Type: Application
    Filed: June 6, 2019
    Publication date: May 7, 2020
    Inventors: Dae Gun JIN, Eun Ji KWON, Jee Youn HWANG, Ji Hoon JANG, Gwang Seok OH, Won Keun KIM, Samuel SEO
  • Publication number: 20170229737
    Abstract: The viscosity of various ionic liquids (IL), the solvent tetraethylene glycol dimethyl ether (G4), and their mixtures, with or without lithium salts, were measured experimentally. Various compositions were studied spectroscopically. Detailed analysis reveals that G4 preferentially solvates cations, leading to a reduction in the interaction energy between cations and anions and a subsequent enhancement in anion mobility. Diffusivity and ionic conductivity of certain compositions were improved at G4 mole fractions below levels required for a “solvate ionic liquid”. When an IL was combined with low amounts of a 1:1 stoichiometric ratio of G4 and lithium salt, the viscosity of composition remained constant and ion mobility increased.
    Type: Application
    Filed: February 10, 2017
    Publication date: August 10, 2017
    Applicant: University of Notre Dame du Lac
    Inventors: Samuel Seo, Joan F. Brennecke