Patents by Inventor Seung Min Oh

Seung Min Oh 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).

  • ANODE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME
    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
  • Silicon-based composite anode active material for secondary battery, anode comprising same
    Patent number: 11031588
    Abstract: Provided are a silicon-based composite anode active material for a secondary battery and an anode including the same. The anode active material for a secondary battery may be a silicon-based composite anode active material, which may include a graphite and a silicon component including two or more selected from the group consisting of Si, Si-M, SiOx, and SiC. The Si-M may be a silicon alloy, and the M may include at least one selected from the group consisting of a transition metal, an alkaline earth metal, a group 13 element, a group 14 element, and a rare earth element.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: June 8, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Seung-Min Oh, Yoon Sung Lee, Jung Young Cho, Yeolmae Yeo
  • Electrolyte for lithium secondary battery and lithium secondary battery including the same
    Patent number: 11024880
    Abstract: Disclose are an electrolyte composite for a lithium secondary battery having an improved output; a cathode including a protective film on its surface; and a lithium secondary battery comprising the same.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: June 1, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yoon Sung Lee, KiSeok Koh, Jung Young Cho, Ikkyu Kim, Yeolmae Yeo, Seung-Min Oh, Sa Heum Kim, Sungmin Choi
  • ELECTRODE FOR SECONDARY BATTERY AND METHOD OF MANUFACTURING SAME
    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
  • Electrolytic Solution for Lithium Secondary Batteries and Lithium Secondary Battery Including the Same
    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
  • All-solid battery and method of manufacturing the same
    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
  • Separator for secondary batteries with enhanced stability and method of manufacturing the same
    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
  • Lithium secondary battery and manufacturing method thereof
    Patent number: 10916752
    Abstract: Disclosed is a lithium secondary battery provided with a separator, having improved thermal stability by including a micro-particle coating layer manufactured using Furan-based polymers, for example, polymers having polymer unit including furanyl or furoyl. The lithium secondary battery includes a cathode, an anode, an electrolyte, and a separator disposed between the cathode and the anode and including a coating layer including a micro-particle. The micro-particle includes the second polymer which may include cross-linked first polymer.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: February 9, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation, The Industry & Academic Cooperation in Chungnam National University (IAC)
    Inventors: KiSeok Koh, Yeolmae Yeo, Seung-Min Oh, Yoon Sung Lee, Kyung Jin Lee, Hyojin Kim
  • Lithium secondary battery and manufacturing method thereof
    Patent number: 10910665
    Abstract: Disclosed herein are provided a lithium secondary battery capable of improving an output characteristic, a life characteristic, and stability of electrode adhesion by using a binder containing dopamine-polymerized heparin in a anode containing silicon. In accordance with an aspect of the present disclosure, a lithium secondary battery includes: an cathode; a anode; a separation film disposed between the cathode and the anode; and an electrolyte, wherein the anode comprises an electrode active material comprising a silicon-based material and graphite, a binder and a conductive material, and the binder comprises any one of heparin and lithium polyacrylate (LiPAA).
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: February 2, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Incheon University Industry Academic Cooperation Foundation
    Inventors: Seung-Min Oh, Yeolmae Yeo, Kiseok Koh, Yoon Sung Lee, Tae-Hyun Kim, Junyoung Mun, Nakgyu Go
  • Lithium secondary battery
    Patent number: 10868302
    Abstract: Disclosed is a lithium secondary battery capable of preventing the battery life from being reduced. The lithium secondary battery includes a cathode, an anode including silicon, a separator positioned between the cathode and the anode, and an electrolyte including flouoroethylene carbonate (FEC), wherein a weight ratio of the silicon to the FEC is about 0.4 to about 0.8.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: December 15, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: SangJin Park, Seung-Min Oh, SungHoon Lim, Seyoung Lee, Shinkook Kong, Jung Young Cho
  • Manufacturing method of positive active material precursor for sodium rechargeable batteries, positive active material precursor for sodium rechargeable batteries made by the same, and manufacturing method of positive active material for sodium rechargeable batteries, positive active material for sodium rechargeable batteries made by the same
    Patent number: 10781110
    Abstract: Disclosed is a method for producing a cathode active material precursor for a sodium secondary battery by using a coprecipitation technique and a cathode active material precursor for a sodium secondary battery produced thereby, and a cathode active material for a sodium secondary battery using the cathode active material precursor for a sodium secondary battery and a method for producing the same.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: September 22, 2020
    Assignee: IUCF-HYU(INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Yang Kook Sun, Seung Min Oh, Min Woo Jang
  • NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF
    Publication number: 20200295352
    Abstract: The present disclosure relates to a negative electrode active material for non-aqueous electrolyte secondary battery and a manufacturing method thereof and, more specifically to, a negative electrode active material for non-aqueous electrolyte secondary battery, the negative electrode active material which not only improves conductivity by reacting, silicon, silicon dioxide and magnesium through a gas phase reaction to produce a reaction product and coating carbon on the surface of the reaction product so as to give conductivity to the reaction product, but also exhibits an effect of greatly improving lifetime characteristics and capacity characteristics by showing a structure that is stable in a volume change caused by intercalation or deintercalation of lithium, and a manufacturing method thereof.
    Type: Application
    Filed: December 5, 2018
    Publication date: September 17, 2020
    Applicant: DAEJOO ELECTRONIC MATERIALS CO., LTD
    Inventor: Seung Min Oh
  • METHOD FOR MANUFACTURING MASK PACK FOR ADSORBING HEAVY METALS, AND MASK PACK MANUFACTURED THEREBY
    Publication number: 20200253358
    Abstract: Provided are a method for manufacturing a mask pack for heavy metal adsorption comprising immersing a cellulose nonwoven fabric in an alkali solution by a cold pad batch method and then aging the cellulose nonwoven fabric at room temperature for 10 minutes to 50 minutes, and immersing the cellulose nonwoven fabric in a carboxymethylation solution by the cold pad batch method and then aging the cellulose nonwoven fabric at room temperature to 60° C. for 10 minutes to 3 hours, and a mask pack for heavy metal adsorption manufactured by the method.
    Type: Application
    Filed: December 11, 2018
    Publication date: August 13, 2020
    Applicants: LG CHEM, LTD., LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Minsung PARK, Haesung YUN, Juhan KIM, Wonjae LEE, Kwang Seoung JEON, Seul Gi KANG, Seung Min OH, Ji Ung PARK
  • Lithium secondary battery and binder for anode of the lithium secondary battery
    Patent number: 10734651
    Abstract: Disclosed herein is a lithium secondary battery capable of improving an output characteristic, a life characteristic, and stability of electrode adhesion by using a binder containing dopamine-polymerized heparin in an anode containing silicon. In accordance with an aspect of the present disclosure, a lithium secondary battery includes: a cathode; an anode; a separation film disposed between the cathode and the anode; and an electrolyte, wherein the anode comprises a binder containing carboxymethyl cellulose (CMC), styrene-butadiene rubber (SBR), and polysaccharide including a sulfonate functional group and an amine group.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: August 4, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, INCHEON UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION
    Inventors: Seung-Min Oh, Yeolmae Yeo, KiSeok Koh, Yoon Sung Lee, Tae-Hyun Kim, Kukjoo Lee, Junyoung Mun
  • Lithium ion battery including separator coated with fire extinguishing particle
    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
  • ELECTROLYTE FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY CONTAINING THE SAME
    Publication number: 20200235431
    Abstract: Disclosed are an electrolyte for a lithium secondary battery and a lithium secondary battery including the same. The electrolyte for the lithium secondary battery includes a lithium salt, a solvent component and an additive including one or more of the following compounds, wherein each of R1, R2 and R3 is independently hydrogen, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an aryl group having 6 to 30 carbon atoms, or an arylalkyl group having 6 to 30 carbon atoms.
    Type: Application
    Filed: May 20, 2019
    Publication date: July 23, 2020
    Inventors: Yoon Sung Lee, Jung Young Cho, Ikkyu Kim, Seung-Min Oh, DongHui Kim, Nam-Soon Choi, Koeun Kim, Juyeon Lee, Sung Ji Park
  • CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, CATHODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME, AND MANUFACTURING METHOD THEREOF
    Publication number: 20200194774
    Abstract: A cathode active material for a lithium secondary battery, the cathode method including a core including a lithium metal oxide and a coating layer disposed on the surface and the inner grain boundaries of the core, wherein the coating layer includes a metal carbide, and a method of manufacturing the same.
    Type: Application
    Filed: September 19, 2019
    Publication date: June 18, 2020
    Inventors: Jieun Lee, Yeolmae Yeo, Seung-Min Oh, Sang Mok Park, Yoon Sung Lee, Dongjun Kim
  • CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, CATHODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME, AND MANUFACTURING METHOD THEREOF
    Publication number: 20200194783
    Abstract: Provided are a cathode active material for a lithium secondary battery, a cathode and a lithium secondary battery each including the same, and a method of manufacturing the same. The cathode active material for a lithium secondary battery includes a core including a lithium metal oxide and a coating layer formed on a surface and the inner grain boundaries of the core, wherein the coating layer includes a metal sulfide.
    Type: Application
    Filed: September 23, 2019
    Publication date: June 18, 2020
    Inventors: Seung-Min Oh, KiSeok Koh, Yeolmae Yeo, Yoon Sung Lee, Jieun Lee, Dongjun Kim, Sang Mok Park
  • LITHIUM SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF
    Publication number: 20200194760
    Abstract: Disclosed are a lithium secondary battery including: a positive electrode; a negative electrode; an electrolyte; and a separator including a separator substrate and a ceramic layer formed on one surface or both surfaces of the separator substrate. Particularly, the ceramic layer may include a first ceramic particle including an epoxide group and a second ceramic particle including an amine group, and the first ceramic particle may be chemically bonded to the second ceramic particle.
    Type: Application
    Filed: September 17, 2019
    Publication date: June 18, 2020
    Inventors: Dongjun Kim, Yeolmae Yeo, Yoon Sung Lee, Jieun Lee, Sang Mok Park, Seung-Min Oh
  • LITHIUM SECONDARY BATTERY
    Publication number: 20200185678
    Abstract: Disclosed is lithium secondary battery that may include: a positive electrode; a negative electrode; an electrolyte; and a separator positioned between the positive electrode and the negative electrode. The separator may include: a separator substrate; and a fibrous adhesive layer formed on one or both surfaces of the separator substrate.
    Type: Application
    Filed: September 17, 2019
    Publication date: June 11, 2020
    Inventors: Sang Mok Park, Yeolmae Yeo, Dongjun Kim, Yoon Sung Lee, Jieun Lee, Sa Heum Kim, Seung-Min Oh