Patents by Inventor Yeol Mae Yeo

Yeol Mae Yeo 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: 20220149380
    Abstract: Disclosed are an anode material for lithium secondary batteries, the anode material including an Si-based anode active material and a film layer formed as a double self-assembled monolayer as the result of an amino trimethoxy silane (ATS) SAM precursor and a fluoro ethylene carbonate (FEC) SAM precursor being sequentially bonded to the surface of the Si-based anode active material, and method of manufacturing the same.
    Type: Application
    Filed: June 2, 2021
    Publication date: May 12, 2022
    Inventors: Seung Min Oh, Ik Kyu Kim, Yeol Mae Yeo, Yoon Sung Lee, Ji Eun Lee, Sa Heum Kim, Dong Jun Kim, Nam Hyeong Kim, Jun Young Mun, Yeong Don Park, Su Hyun Lee, Jun Hwa Park, Mei Hua Hong
  • Publication number: 20220131136
    Abstract: The anode material for a lithium secondary battery includes: an Si-based anode active material; and a film layer including a self-assembly monolayer (SAM) formed through bonding of SAM precursors onto a surface of the Si-based anode active material.
    Type: Application
    Filed: June 9, 2021
    Publication date: April 28, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, INCHEON NATIONAL UNIVERSITY RESEARCH & BUSINESS FOUNDATION
    Inventors: Seung Min Oh, Ik Kyu Kim, Yeol Mae Yeo, Yoon Sung Lee, Ji Eun Lee, Sang Mok Park, Dong Jun Kim, Nam Hyeong Kim, Jun Young Mun, Yeong Don Park, Su Hyun Lee, Jun Hwa Park, Mei Hua Hong
  • Publication number: 20210399296
    Abstract: Provided is a lithium secondary battery with improved t electrochemical characteristics through improvement of the structural stability by including a cathode active material doped with molybdenum (Mo). The lithium secondary battery includes a cathode; an anode; a separator positioned between the cathode and the anode; and an electrolyte. In particular, the cathode active material includes molybdenum (Mo) doped on a composite oxide of lithium and metal including manganese (Mn) and titanium (Ti).
    Type: Application
    Filed: September 1, 2021
    Publication date: December 23, 2021
    Inventors: Seung-Min Oh, KiSeok Koh, Yeol Mae Yeo, Dongjun Kim, Yoon Sung Lee, Jieun Lee, Sa Heum Kim, Seung Taek Myung
  • Publication number: 20210194064
    Abstract: Disclosed are a separator for secondary batteries with enhanced stability and a method of manufacturing the separator. The separator can prevent self-discharge which may occur when a porous non-woven fabric material is used for a separator; can perform a shutdown function at a high temperature of 200° C. or less; and can avoid even under harsh conditions of high temperatures, deterioration in stability caused by internal short-circuit of positive and negative electrodes. In particular, the separator for secondary batteries of the present invention includes a porous non-woven fabric material impregnated with a baroplastic polymer powder and pores of the porous non-woven fabric material are filled with the baroplastic polymer powder by pressing an assembly of the secondary battery.
    Type: Application
    Filed: March 4, 2021
    Publication date: June 24, 2021
    Inventors: Yeol Mae Yeo, Ki Seok Koh, Yoon Sung Lee, Seung Min Oh, Hong Seok Min, Sung Min Choi
  • Publication number: 20210184211
    Abstract: Provided are, inter alia, a positive electrode material for a lithium secondary battery having a high energy density with only a single positive electrode material, and a lithium secondary battery including the same. The positive electrode material for a lithium secondary battery includes a positive electrode active material formed of a Li—[Mn—Ti]—O-based material so that lithium is reversibly intercalated and deintercalated, and particularly, the positive electrode active material is doped with a dopant (Me) having an oxidation number of 2 to 6.
    Type: Application
    Filed: May 26, 2020
    Publication date: June 17, 2021
    Inventors: Seung Min Oh, Sang Mok Park, Ik Kyu Kim, Yeol Mae Yeo, Yoon Sung Lee, Dong Jun Kim, Sa Heum Kim, Ji Eun Lee, Seung Taek Myung, Ji Ung Choi
  • Publication number: 20210184206
    Abstract: Disclosed are an anode material for a lithium secondary battery and a method of manufacturing the same. For instance, the lithium secondary batter may have a high energy density by using only a single anode material. Particularly, the anode material for a lithium secondary battery includes a Li—[Mn—Ti]—Al—O-based anode active material; and a carbon nanotube (CNT) attached to the surface of the anode active material in an acid-treated state to be formed as a composite.
    Type: Application
    Filed: July 14, 2020
    Publication date: June 17, 2021
    Inventors: Seung Min Oh, Ik Kyu Kim, Yeol Mae Yeo, Sang Mok Park, Yoon Sung Lee, Nam Hyeong Kim, Ji Eun Lee, Dong Jun Kim, Seung Taek Myung, Ji Ung Choi
  • Publication number: 20210151733
    Abstract: An electrode for a secondary battery and method of manufacturing the electrode for the secondary battery are provided. The electrode for the secondary battery may include: a cathode current collector; and a layer coated on the cathode current collector and in which metal nanowires are embedded in a binder material.
    Type: Application
    Filed: August 14, 2020
    Publication date: May 20, 2021
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Yeol Mae YEO, Sung Hoon LIM, Nam Hyeong KIM, Ji Eun LEE, Dong Jun KIM, Sang Mok PARK, Seung Min OH
  • 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
  • Patent number: 10971710
    Abstract: A method of manufacturing the all-solid battery includes steps of: forming a cathode layer; forming an anode layer; forming an electrolyte layer between the cathode layer and the anode layer; and forming an insulation layer using a baroplastic polymer at an edge portion of the battery. The step of forming the insulation layer comprises: forming a coating layer through coating of the edge portion of the battery with the baroplastic polymer; and shaping the baroplastic polymer through pressing of the coating layer.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: April 6, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yeol Mae Yeo, Ki Seok Koh, Yoon Sung Lee, Seung Min Oh, Hong Seok Min
  • Patent number: 10964977
    Abstract: Disclosed are a separator for secondary batteries with enhanced stability and a method of manufacturing the separator. The separator can prevent self-discharge which may occur when a porous non-woven fabric material is used for a separator; can perform a shutdown function at a high temperature of 200° C. or less; and can avoid even under harsh conditions of high temperatures, deterioration in stability caused by internal short-circuit of positive and negative electrodes. In particular, the separator for secondary batteries of the present invention includes a porous non-woven fabric material impregnated with a baroplastic polymer powder and pores of the porous non-woven fabric material are filled with the baroplastic polymer powder by pressing an assembly of the secondary battery.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: March 30, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yeol Mae Yeo, Ki Seok Koh, Yoon Sung Lee, Seung Min Oh, Hong Seok Min, Sung Min Choi
  • Patent number: 10727525
    Abstract: A lithium ion battery including a core-shell structured fire extinguishing particle is disclosed. When the battery is overheated to a predetermined temperature, a shell of the fire extinguishing particle coated on one surface or both surfaces of a porous separator is melted, a fire extinguishing material disposed in an inner space of the shell is released into an electrolytic solution of the battery, and as a result, it is possible to prevent the battery from being ignited or exploded even though the battery is overheated. Further, the melted shell clogs pores of the porous separator to block lithium ions from moving, such that the battery is blocked from being driven, thereby preventing the battery from being overheated any more.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: July 28, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITY
    Inventors: Ki Seok Koh, Yeol Mae Yeo, Jung Je Woo, Seung Min Oh, Yoon Sung Lee, Kyung Jin Lee, Hyo Jin Kim
  • Patent number: 10601051
    Abstract: Provided are a method of manufacturing an all-solid battery and an all-solid battery manufactured by the same for efficiently insulating an edge portion of the all-solid battery. Particularly, the all-solid batter may include a hybrid current collector comprising a porous metal current collector at the edge portions thereof, and a cathode layer or an anode layer may be further fabricated by coating a cathode active material or an anode active material on the hybrid current collector. Therefore, a short-circuit of the edge portion that may occur due to the detachment of the electrode material at the edge portion of the electrode may be prevented and a use rate and energy density of the edge portion electrode may be improved.
    Type: Grant
    Filed: December 2, 2017
    Date of Patent: March 24, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yeol Mae Yeo, Ki Seok Koh, Yoon Sung Lee, Seung Min Oh, Sang Mok Park
  • Publication number: 20190157648
    Abstract: A method of manufacturing the all-solid battery includes steps of: forming a cathode layer; forming an anode layer; forming an electrolyte layer between the cathode layer and the anode layer; and forming an insulation layer using a baroplastic polymer at an edge portion of the battery. The step of forming the insulation layer comprises: forming a coating layer through coating of the edge portion of the battery with the baroplastic polymer; and shaping the baroplastic polymer through pressing of the coating layer.
    Type: Application
    Filed: October 11, 2018
    Publication date: May 23, 2019
    Inventors: Yeol Mae YEO, Ki Seok KOH, Yoon Sung LEE, Seung Min OH, Hong Seok MIN
  • Publication number: 20190123325
    Abstract: The present invention provides a secondary battery that includes a metal ion receptor, which can absorb metal dendrites generated on the surface of a cathode while the battery is used, in a battery cell, whereby it is possible to improve safety by suppressing growth of dendrites and preventing a short due to a dendrite by making metal dendrites be absorbed in the metal ion receptor before the dendrites growing on the surface of the cathode reach the surface of an anode.
    Type: Application
    Filed: December 20, 2017
    Publication date: April 25, 2019
    Inventors: Sang Mok Park, Yoon Sung Lee, Seung Min Oh, Ki Seok Koh, Yeol Mae Yeo
  • Publication number: 20190074521
    Abstract: Provided are a method of manufacturing an all-solid battery and an all-solid battery manufactured by the same for efficiently insulating an edge portion of the all-solid battery. Particularly, the all-solid batter may include a hybrid current collector comprising a porous metal current collector at the edge portions thereof, and a cathode layer or an anode layer may be further fabricated by coating a cathode active material or an anode active material on the hybrid current collector. Therefore, a short-circuit of the edge portion that may occur due to the detachment of the electrode material at the edge portion of the electrode may be prevented and a use rate and energy density of the edge portion electrode may be improved.
    Type: Application
    Filed: December 2, 2017
    Publication date: March 7, 2019
    Inventors: Yeol Mae Yeo, Ki Seok Koh, Yoon Sung Lee, Seung Min Oh, Sang Mok Park
  • Publication number: 20190074516
    Abstract: Provided are electrode slurry including (A) an electrode active material, (B) a conductive material, and (C) a binder containing a cellulose compound, styrene-butadiene rubber and lithium polyacrylic acid at the same time, and an electrode and a lithium secondary battery including the slurry.
    Type: Application
    Filed: December 4, 2017
    Publication date: March 7, 2019
    Inventors: Seung Min Oh, Yoon Sung Lee, Ki Seok Koh, Yeol Mae Yeo
  • Publication number: 20180331386
    Abstract: A lithium ion battery including a core-shell structured fire extinguishing particle is disclosed. When the battery is overheated to a predetermined temperature, a shell of the fire extinguishing particle coated on one surface or both surfaces of a porous separator is melted, a fire extinguishing material disposed in an inner space of the shell is released into an electrolytic solution of the battery, and as a result, it is possible to prevent the battery from being ignited or exploded even though the battery is overheated. Further, the melted shell clogs pores of the porous separator to block lithium ions from moving, such that the battery is blocked from being driven, thereby preventing the battery from being overheated any more.
    Type: Application
    Filed: December 18, 2017
    Publication date: November 15, 2018
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITY
    Inventors: Ki Seok KOH, Yeol Mae YEO, Jung Je WOO, Seung Min OH, Yoon Sung LEE, Kyung Jin LEE, Hyo Jin KIM
  • Publication number: 20180183108
    Abstract: Disclosed are a separator for secondary batteries with enhanced stability and a method of manufacturing the separator. The separator can prevent self-discharge which may occur when a porous non-woven fabric material is used for a separator; can perform a shutdown function at a high temperature of 200° C. or less; and can avoid even under harsh conditions of high temperatures, deterioration in stability caused by internal short-circuit of positive and negative electrodes. In particular, the separator for secondary batteries of the present invention includes a porous non-woven fabric material impregnated with a baroplastic polymer powder and pores of the porous non-woven fabric material are filled with the baroplastic polymer powder by pressing an assembly of the secondary battery.
    Type: Application
    Filed: August 23, 2017
    Publication date: June 28, 2018
    Inventors: Yeol Mae Yeo, Ki Seok Koh, Yoon Sung Lee, Seung Min Oh, Hong Seok Min, Sung Min Choi
  • Publication number: 20180175443
    Abstract: A lithium ion secondary battery includes an electrode assembly having a separator, a collector layer stacked on either side of the separator, and a positive electrode active material and a negative electrode active material formed on respective outer surfaces of the collector layer. The electrode assembly causes lithium ions to move to an inside of the separator by liquid electrolyte, which moves to the positive electrode active material and the negative electrode active material, thereby causing a charging/discharging reaction inside the collector layer.
    Type: Application
    Filed: September 29, 2017
    Publication date: June 21, 2018
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Seung Min Oh, Ki Seok Koh, Yeol Mae Yeo