Patents by Inventor Young Gi Lee

Young Gi Lee 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: 20240170729
    Abstract: Provided is a separator for a lithium secondary battery. The separator for the lithium secondary battery may include a separator substrate, a first coating layer on the separator substrate, and a second coating layer on the first coating layer, wherein the first coating layer includes a solid electrolyte, and the second coating layer includes a lithium compound.
    Type: Application
    Filed: November 17, 2023
    Publication date: May 23, 2024
    Inventors: Dong Ok SHIN, Young-Gi LEE, JINWOO LEE, Myeong Ju LEE, Seong Eun JO, Jaecheol CHOI
  • Patent number: 11975296
    Abstract: A pore-filled ion exchange polyelectrolyte composite membrane from which the surface ion exchange polyelectrolyte has been removed and a method of manufacturing the same are provided. The ion exchange polyelectrolyte composite membrane exhibits low film resistance and low in-plane-direction swelling degree, and has a smaller film-thickness than a commercial film, and thus, can be used for various purposes. In addition, since the pore-filled ion exchange polyelectrolyte composite membrane is continuously manufactured through a roll-to-roll process, the manufacturing process is simple, and manufacturing costs can be greatly reduced.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: May 7, 2024
    Assignee: Toray Advanced Materials Korea Inc.
    Inventors: Young Woo Choi, Mi Soon Lee, Tae Young Kim, Young Gi Yoon, Beom Jun Kim, Min Ho Seo, Chi Young Jung, Jong Min Lee, Nam-jo Jeong, Seung Cheol Yang, Ji Yeon Choi
  • Patent number: 11961443
    Abstract: The present disclosure discloses a display driving apparatus. The display driving apparatus of the present disclosure may be configured to drive a source signal in a state optimized for a panel load of a display panel.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: April 16, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventors: Dong Hun Lee, Won Kim, Young Tae Kim, Taiming Piao, Chang Gi Min
  • Patent number: 11952647
    Abstract: There is provided a ferritic lightweight steel which contains 2.0 to 3.0 wt % manganese (Mn), 5.0 to 6.0 wt % aluminum (Al) and 0.1 to 0.3 wt % carbon (C) and has a tensile strength of 900 MPa to 1,108 MPa. The lightweight steel includes ferrite-austenite dual grains as a result of performing low-temperature tempering-induced partitioning (LTP) at 300° C. for 10 minutes after isothermal annealing.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: April 9, 2024
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY
    Inventors: Jae Bok Seol, Hyo Ju Bae, Kwang Gyu Koh, Jung Gi Kim, Hyo Kyung Sung, Young Kook Lee
  • Publication number: 20240110995
    Abstract: Disclosed is a battery residual value evaluation system, which includes a measurement unit that measures a voltage and a current of an external battery to generate a voltage signal and a current signal, a resistance calculation unit that generates a resistance value, a resistance change value, and a resistance change rate of the external battery for each of charging and discharging cycles of the external battery based on the voltage signal and the current signal, an external input unit that receives reference ranges from an outside, a determination unit that determines a battery residual value based on whether the resistance value, the resistance change value, and the resistance change rate fall within the reference ranges, respectively, and an output unit that outputs the determination result to the outside.
    Type: Application
    Filed: September 11, 2023
    Publication date: April 4, 2024
    Inventors: Jimin OH, Kwang Man KIM, Young-Gi LEE
  • Publication number: 20240097580
    Abstract: An inverter driving apparatus includes an inverter having a plurality of legs respectively corresponding to each of a plurality of phases and the control unit generating space vector modulation signals based on a phase voltage command, each of the space vector modulation signals corresponding to each of the plurality of phases, respectively, determining whether an output voltage of the inverter corresponding to at least one space vector modulation signal of the space vector modulation is in a non-linear region by determining whether each voltage of the space vector modulation signals is included in a predetermined range, generating a terminal voltage command by determining whether or not to apply an offset voltage to each of the space vector modulation signals based on the determination of the non-linear region, and controlling a turn-on state of at least one switch included in each of the plurality of legs by modulating the terminal voltage command based on pulse width modulation.
    Type: Application
    Filed: November 11, 2022
    Publication date: March 21, 2024
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Hyun Jae LIM, Yong Jae LEE, Young Ho CHAE, Young Kwan KO, Young Gi LEE
  • Publication number: 20240068460
    Abstract: A variable displacement swash plate type compressor control method and a variable displacement swash plate type compressor controlled thereby may include a first determination step of determining whether liquid refrigerant exists within the variable displacement swash plate type compressor; a first operation step of applying power to the field coil assembly and of not applying current to the electronic control valve, when it is determined in the first determination step S1 that the liquid refrigerant exists; a second determination step of comparing an elapsed period of time of operating in the first operation step with a predetermined reference time; and a second operation step of maintaining the power applied in the first operation step to the field coil assembly and applying current to the electronic control valve when the elapsed period of time is greater than or equal to the reference time.
    Type: Application
    Filed: July 13, 2022
    Publication date: February 29, 2024
    Inventors: Hyung In Choi, Seong Gyu Gong, Young Min Kim, Eun Gi Son, Joo Young Lee, Soo Cheol Jeong
  • Publication number: 20240072297
    Abstract: Provided is a lithium battery including a first electrode structure, a second electrode structure spaced apart from the first electrode structure, and an electrolyte between the first electrode structure and the second electrode structure, wherein the electrolyte includes a lithium salt, an organic solvent, and an additive, the additive includes a metal salt compound catalyst, the metal salt compound catalyst activates a polymerization reaction of a cyclic carbonate in the organic solvent at a first temperature, and the first temperature ranges between about 100° C. and about 200° C.
    Type: Application
    Filed: August 2, 2023
    Publication date: February 29, 2024
    Inventors: Jaecheol CHOI, Young-Gi LEE, Ju Young KIM
  • Publication number: 20240052360
    Abstract: Provided are: a plant cell, in which expression or activity of a phytochelatin synthase (PCS) gene or a protein encoded by the PCS gene is reduced as compared with a parent cell; a plant having that has reduced heavy metal absorption, and includes the plant cell; a method of reducing heavy metals in a plant, the method including reducing expression or activity of a PCS gene or a protein encoded by the PCS gene, as compared with a parent cell; a CRISPR-Cas9 recombinant vector including a single guide RNA targeting a PCS gene; and a method of preparing a plant with reduced heavy metals, the method including transforming a plant cell with the recombinant vector.
    Type: Application
    Filed: August 19, 2021
    Publication date: February 15, 2024
    Applicant: KT&G CORPORATION
    Inventors: Hyo Seok SEO, Young Gi LEE, Jeong Heon LEE, Kwang Chul KIM, Woong Hyun NA, Kyoung Hwan OH, Eun Young JEON
  • Publication number: 20230411678
    Abstract: Provided are a solid electrolyte membrane, an all-solid-state battery including the same and methods of manufacturing thereof. The solid electrolyte membrane includes a texture-type support having oppositely disposed first side and second side, and having multiple pores inside thereof, and a solid electrolyte filling up the pores and covering at least one side of the support, wherein the support may include a lithium salt, a polymer material or a first solid electrolyte material, or combinations thereof, and show ion conductivity. The solid electrolyte may include a second solid electrolyte material.
    Type: Application
    Filed: October 21, 2022
    Publication date: December 21, 2023
    Inventors: Seok Hun Kang, Young-Gi Lee, Young Sam Park, Dong Ok Shin, Jaecheol Choi
  • Publication number: 20230378602
    Abstract: Provided is a method for manufacturing a binder for coating a secondary battery separator, wherein the method may include performing a first polymerization on a first monomer to form a precursor solution including a chain-type particle, and adding a second monomer to the precursor solution and performing a second polymerization to form an emulsion particle on the chain-type particle. In an embodiment, the second polymerization may include an emulsification polymerization in which the chain-type particle acts as an emulsifier.
    Type: Application
    Filed: May 18, 2023
    Publication date: November 23, 2023
    Applicants: Electronics and Telecommunications Research Institute, APEC, LTD.
    Inventors: Jaecheol CHOI, Sang Won HWANG, Jun Hee PARK, Young Jae JANG, Young-Gi LEE, Ju Young KIM, Dong Ok SHIN
  • Publication number: 20230343994
    Abstract: The present disclosure relates to an all-solid-state secondary battery, and more particularly, to an all-solid-state secondary battery including a positive electrode, a negative electrode, and a solid electrolyte layer disposed between the positive electrode and the negative electrode. Here, at least one of the positive electrode and the negative electrode includes a sulfide-based active material, the sulfide-based active material has a particle size of about 50 nm to about 5 µm, and the sulfide-based active material has a grain size of about 1 nm to about 10 nm.
    Type: Application
    Filed: April 26, 2022
    Publication date: October 26, 2023
    Inventors: Ju Young KIM, Young-Gi LEE, Yong Min LEE, Seok Hun KANG, Kwang Man KIM, Ju Mi KIM, Joonam PARK, Dong Ok SHIN, Jimin OH, Myeong Ju LEE
  • Publication number: 20230299349
    Abstract: A lithium battery according to the inventive concept includes: a first electrode structure; a second electrode structure separated from the first electrode structure; and an electrolyte between the first electrode structure and the second electrode structure, wherein the electrolyte includes: a lithium salt; an organic solvent; and an additive, the additive includes a polymer additive, and the polymer additive may be a mixture of at least two or more polymers among a halogen-based polymer, a silicon-based polymer and an acrylic polymer, or a copolymer thereof.
    Type: Application
    Filed: December 19, 2022
    Publication date: September 21, 2023
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jaecheol CHOI, Kwang Man KIM, Young-Gi LEE, Seok Hun KANG, Ju Young KIM, Dong Ok SHIN, Jimin OH
  • Publication number: 20230261323
    Abstract: Provided is a secondary battery including: a first electrode structure; a second electrode structure spaced apart from the first electrode structure; a separator between the first electrode structure and the second electrode structure; and an electrolyte filled between the first electrode structure and the separator and between the second electrode structure and the separator, wherein the separator includes: a separator substrate; a polymer layer adsorbed on a surface of the separator substrate; and a ceramic layer on the polymer layer, the polymer layer including a polyethyloxazoline-based polymer, and the ceramic layer including an aqueous binder.
    Type: Application
    Filed: August 31, 2022
    Publication date: August 17, 2023
    Inventors: YOUNG SAM PARK, Ju Young Kim, Jinyoung Kim, Seok Hun Kang, Young-Gi Lee, Dong Ok Shin, Seokyoon Yoon, Jaecheol Choi
  • Publication number: 20230133648
    Abstract: A composition of aqueous slurry capable of exerting uniform coating on a hydrophobic separator for a secondary battery is disclosed. Unlike other aqueous polymers, a polyvinyl alcohol-based polymer can be physically and chemically bound to a surface of a hydrophobic separator made of polyolefins such as polyethylene, polypropylene, and the like. Therefore, when the aqueous slurry including the polyvinyl alcohol-based polymer is fabricated and a hydrophobic separator is coated with the aqueous slurry, the hydrophobic separator may be smoothly coated with the aqueous slurry.
    Type: Application
    Filed: April 7, 2022
    Publication date: May 4, 2023
    Inventors: Ju Young KIM, Young Gi LEE, Seok Hun KANG, Young Sam PARK, Dong Ok SHIN, Jae Cheol CHOI
  • Publication number: 20230125653
    Abstract: Disclosed is a composite electrode for an all-solid-state secondary battery. The composite electrode includes a composite positive electrode and a composite negative electrode, wherein each of the composite positive electrode and the composite negative electrode includes an electrode active material, and an ion-conducting composite binder configured to include an inorganic ion conductor for an ion movement path and an organic ion conductor for binding of the electrode active material.
    Type: Application
    Filed: September 27, 2022
    Publication date: April 27, 2023
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Dong Ok SHIN, Myeong Ju LEE, Young-Gi LEE, Seok Hun KANG, Ju Young KIM, Jimin OH
  • Publication number: 20230120799
    Abstract: A lithium battery according to the inventive concept includes: a first electrode structure; a second electrode structure separated from the first electrode structure; and an electrolyte between the first electrode structure and the second electrode structure, wherein the electrolyte includes: a lithium salt; an organic solvent; and at least one among a material represented by Formula 1 and a material represented by Formula 2.
    Type: Application
    Filed: July 11, 2022
    Publication date: April 20, 2023
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jimin OH, Kwang Man KIM, Sung You HONG, Nam Kyu PARK, Ho Seung LEE, Young-Gi LEE
  • Publication number: 20230108531
    Abstract: A CMP slurry composition for patterned tungsten wafers and a method of polishing patterned tungsten wafers using the same, the CMP slurry composition includes a solvent; an abrasive; and a non-dendrimeric poly(amidoamine).
    Type: Application
    Filed: August 19, 2022
    Publication date: April 6, 2023
    Inventors: Ji Ho LEE, Young Gi LEE, Soo Yeon SIM, Hyun Woo LEE, Jong Won LEE
  • Publication number: 20230100845
    Abstract: Provided is a cellulose derivative composition for an all-solid-state secondary battery binder including a compound represented by Formula 1 below according to the inventive concept. In Formula 1, R1, R1?, R2, R2?, R3, and R3? are each independently any one among a carboxymethyl group, a sulfur substituent, or a phosphorus substituent, in which a monovalent metal is substituted or hydrogen, wherein R1, R2, and R3 is —CH2COOX, , SO3X, —PO3X or —PO3X2 where X may be any one among sodium (Na), potassium (K), rubidium (Rb), or cesium (Cs). R1?, R2?, and R3? is —CH2COOY, —SO3Y, —PO3Y or —PO3Y2 where Y may be lithium (Li).
    Type: Application
    Filed: September 15, 2022
    Publication date: March 30, 2023
    Inventors: Dong Ok SHIN, Young-Gi Lee, Jaecheol Choi, Seok Hun Kang, Ju Young Kim, Young Sam Park
  • Publication number: 20230083742
    Abstract: An all-solid-state battery for an ion-conducting binder evaluation system for a secondary battery may comprise: an electrode manufactured with an electrode composition, which includes electrode active materials and a binder, so that ion transport in the electrode is dependent on a mechanism of ion diffusion between the electrode active materials by excluding an electrolyte component from the electrode; a counter electrode disposed to face the electrode; and a solid electrolyte layer disposed between the electrode and the counter electrode, wherein a pore density of the electrode, which is an electrolyte-free electrode, is less than or equal to 15% of an electrode bulk density.
    Type: Application
    Filed: September 1, 2022
    Publication date: March 16, 2023
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Dong Ok SHIN, Young Gi LEE, Jae Cheol CHOI, Ju Young KIM, Seok Hun KANG, Young Sam PARK