Patents by Inventor Jang Wook Choi

Jang Wook Choi 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: 20240055587
    Abstract: Disclosed is a zinc rechargeable battery, the zinc rechargeable battery including a positive electrode, a zinc-containing negative electrode, a separator between the positive electrode and the negative electrode, and an electrolyte, wherein the zinc rechargeable battery includes an additive and the additive is a compound having a donor number of about 32 or more.
    Type: Application
    Filed: August 3, 2023
    Publication date: February 15, 2024
    Inventors: Jang Wook CHOI, Minkwan KIM, Jimin LEE
  • Publication number: 20240047747
    Abstract: Disclosed is a zinc rechargeable battery, the zinc rechargeable battery including a positive electrode, a zinc-containing negative electrode, a separator between the positive electrode and the negative electrode, and an electrolyte, wherein the electrolyte includes a solvent, a zinc salt, and a low kex cation having a solvent exchange rate constant (kex) of less than or equal to about 103 s?1, and in the electrolyte, a molal concentration of the low kex cation in the electrolyte is lower than a molal concentration of a zinc ion.
    Type: Application
    Filed: August 3, 2023
    Publication date: February 8, 2024
    Inventors: Jang Wook CHOI, Minkwan KIM
  • Patent number: 11777094
    Abstract: A composite binder composition for an all-solid-state battery includes: a first polymer comprising a repeating structure represented by Chemical Formula 1a or Chemical Formula 1b below, and a second polymer comprising at least one selected from a group consisting of diene-based rubber, polysiloxane, and combinations thereof:
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: October 3, 2023
    Assignees: Hyundai Motor Company, Kia Corporation, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Sang Mo Kim, Tae Young Kwon, Ju Yeon Lee, Sung Hoo Jung, Jang Wook Choi, Ji Eun Lee
  • Patent number: 11764429
    Abstract: A battery pouch that is formed to accommodate an electrode assembly, comprising: a first member layer; and a second member layer that is located between the first member layer and the electrode assembly, and contains an elastomer and protrudes toward the electrode assembly at a plurality of locations to be brought into discontinuous contact with the electrode assembly, wherein the second member layer has spaces open to the electrode assembly between the protruding portions. Accordingly, the power output characteristics of the battery can be improved and the damage to the damage to the sealing portion can be prevented.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: September 19, 2023
    Assignees: LiBEST INC., KHVATEC CO., LTD.
    Inventors: Jang Wook Choi, Joo Seong Kim
  • Publication number: 20230207817
    Abstract: A negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. The negative electrode for a rechargeable lithium battery includes a current collector and a negative active material layer on the current collector, wherein the negative active material layer comprises a negative active material, a binder, and a polyhydric alcohol plasticizer having 2 to 5 OH groups per molecule of the polyhydric alcohol plasticizer, and the binder is an aqueous linear polymer binder including a cellulose-based compound, an acrylate-based compound, or a combination thereof.
    Type: Application
    Filed: December 23, 2022
    Publication date: June 29, 2023
    Inventors: Jungmin LEE, Yunshik CHO, Kiho PARK, Jaemin KIM, Jang Wook CHOI
  • Publication number: 20230178744
    Abstract: The present disclosure relates to a binder for a solid-state battery and a manufacturing method thereof. The binder may include a polymer comprising a carbonyl group and a linker comprising amino groups at both ends.
    Type: Application
    Filed: December 6, 2022
    Publication date: June 8, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, Seoul National University R&DB Foundation
    Inventors: Seung Ho Choi, Sang Heon Lee, Jang Wook Choi, Ji Hoon Oh
  • Publication number: 20230137621
    Abstract: Provided herein are an all-solid-state battery having an intermediate layer including a metal and a metal nitride, and a method for manufacturing the same.
    Type: Application
    Filed: November 1, 2022
    Publication date: May 4, 2023
    Inventors: Ga Hyeon Im, Yun Sung Kim, Sang Heon Lee, Seung Ho Choi, Ji Hoon Oh, Jang Wook Choi
  • Publication number: 20220416307
    Abstract: Disclosed are an anode-free all-solid-state battery which may operate at low temperature conditions, such as room temperature, and a method manufacturing the same. The anode-free all-solid-state battery may have uniformly deposited lithium during charging and inhibit the growth of lithium dendrites.
    Type: Application
    Filed: June 23, 2022
    Publication date: December 29, 2022
    Inventors: Seung Ho Choi, Sang Heon Lee, Ga Hyeon Im, Yun Sung Kim, Jang Wook Choi, Ji Eun Lee
  • Patent number: 11459672
    Abstract: A method of preparing a structure, more particularly, a method of preparing a structure capable of ensuring a space for carrying an electrode active material by a simple method which includes an electrospinning process using a double nozzle electrospinning device and a heat treatment process.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: October 4, 2022
    Assignees: LG ENERGY SOLUTION, LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Eunkyung Park, Jang Wook Choi, Sung Hyeon Park, Minehul Jang, Suk Il Youn, Byoungkuk Son, Se Ho Park
  • Patent number: 11380888
    Abstract: An electrode and a lithium secondary battery including the same. By preparing an electrode including an electrode active layer formed using a structure capable of supporting an electrode active material, safety and charge and discharge properties of a battery are improved due to morphological characteristics of the electrode active material being supported inside the structure.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: July 5, 2022
    Assignees: LG ENERGY SOLUTION, LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Byoungkuk Son, Jang Wook Choi, Byung Gon Kim, Minchul Jang, Eunkyung Park, Junghun Choi, Donghyeon Kang
  • Patent number: 11296324
    Abstract: The present disclosure provides a rotaxane polymer binder containing a polymer based on a rotaxane structure. The polymer binder may further contain a polymer cross-linked with a polar polymer. The polar polymer may be a polymer containing the element F, O or N in a functional group and having high polarity. In addition, the present disclosure provides an electrode containing the rotaxane polymer binder as a binder for a lithium secondary battery, and a secondary battery containing the electrode.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: April 5, 2022
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jang Wook Choi, Ali Coskun, Sung Hun Choi, Tae Woo Kwon
  • Patent number: 11251438
    Abstract: A structure, and more specifically a tube-shaped structure having an inner surface and two ends, wherein one or both ends are open and the inner surface is exposed through said one or both open ends, and a metal provide on the inner surface. Also, an electrode active material, such as lithium metal, on the metal included on the inner surface of the tube.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: February 15, 2022
    Assignees: LG ENERGY SOLUTION, LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Eunkyung Park, Jang Wook Choi, Byung Gon Kim, Minchul Jang, Byoungkuk Son, Junghun Choi, Donghyeon Kang
  • Publication number: 20220037665
    Abstract: A composite binder composition for an all-solid-state battery includes: a first polymer comprising a repeating structure represented by Chemical Formula 1a or Chemical Formula 1b below, and a second polymer comprising at least one selected from a group consisting of diene-based rubber, polysiloxane, and combinations thereof:
    Type: Application
    Filed: May 27, 2021
    Publication date: February 3, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, Seoul National University R&DB Foundation
    Inventors: Sang Mo KIM, Tae Young KWON, Ju Yeon LEE, Sung Hoo JUNG, Jang Wook CHOI, Ji Eun LEE
  • Publication number: 20210351462
    Abstract: A battery pouch that is formed to accommodate an electrode assembly, comprising: a first member layer; and a second member layer that is located between the first member layer and the electrode assembly, and contains an elastomer and protrudes toward the electrode assembly at a plurality of locations to be brought into discontinuous contact with the electrode assembly, wherein the second member layer has spaces open to the electrode assembly between the protruding portions. Accordingly, the power output characteristics of the battery can be improved and the damage to the damage to the sealing portion can be prevented.
    Type: Application
    Filed: September 20, 2018
    Publication date: November 11, 2021
    Inventors: Jang Wook CHOI, Joo Seong KIM
  • Patent number: 11094940
    Abstract: The present disclosure provides a polymer binder for a secondary battery electrode, which serves as a binder for a carbon-coated lithium iron phosphate (c-LiFePO4) electrode and is a copolymer containing a hard segment capable of hydrogen bonding in the electrode and a soft segment having a polyol structure. Also, the present disclosure provides a secondary battery electrode and a lithium secondary battery containing the same, wherein a nonaqueous electrolyte solution is applied to an electrode mixture containing the binder for an electrode.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: August 17, 2021
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jang Wook Choi, Yong Hee Lee
  • Publication number: 20210242452
    Abstract: Disclosed herein are rechargeable aluminum organic batteries and active materials used therein. The cathodic materials used herein comprise a macrocycle comprising a substituted or unsubstituted phenanthrenequinone unit and a graphite flake.
    Type: Application
    Filed: July 19, 2019
    Publication date: August 5, 2021
    Inventors: James Fraser Stoddart, Dong Jun Kim, Jang Wook Choi, Dong-Joo Yoo
  • Patent number: 10892477
    Abstract: The present invention relates to a porous silicon-silicon oxide-carbon composite comprising a silicon oxide-carbon structure and silicon particles, wherein the silicon oxide-carbon structure comprises a plurality of micropores, and the silicon particles are uniformly distributed in the silicon oxide-carbon structure. The porous silicon-silicon oxide-carbon composite of the present invention shows decreased volume expansion due to the intercalation of lithium ions and improved electric conductivity, and has a porous structure. Accordingly, an electrolyte easily penetrates into the porous structure, and output properties may be improved. When the composite is included in a negative electrode active material, the performance of a lithium secondary battery may be further improved.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: January 12, 2021
    Inventors: Seung Youn Choi, Jang Wook Choi, Eun Kyung Kim, Yong Ju Lee, Hye Jin Kim
  • Publication number: 20200358098
    Abstract: A binder solution for an all-solid-state battery, an electrode slurry for an all-solid-state battery including the same and a method of manufacturing an all-solid-state battery using the same, and more particularly to a binder solution for an all-solid-state battery, in which a polymer binder configured such that a non-polar functional group is bonded to the end of a polar functional group is used, whereby the polar functional group is provided by a deprotection mechanism of the polymer binder through a thermal treatment, thus increasing adhesion between electrode materials to thereby improve battery capacity and enabling a wet process to thereby reduce manufacturing costs, an electrode slurry for an all-solid-state battery including the same and a method of manufacturing an all-solid-state battery using the same.
    Type: Application
    Filed: December 5, 2019
    Publication date: November 12, 2020
    Inventors: Sang Mo Kim, Sang Heon Lee, Yong Sub Yoon, Jae Min Lim, Ju Yeong Seong, Jin Soo Kim, Jang Wook Choi, Kyu Lin Lee, Ji Eun Lee
  • Publication number: 20200112027
    Abstract: The present disclosure provides a rotaxane polymer binder containing a polymer based on a rotaxane structure. The polymer binder may further contain a polymer cross-linked with a polar polymer. The polar polymer may be a polymer containing the element F, O or N in a functional group and having high polarity. In addition, the present disclosure provides an electrode containing the rotaxane polymer binder as a binder for a lithium secondary battery, and a secondary battery containing the electrode.
    Type: Application
    Filed: December 6, 2017
    Publication date: April 9, 2020
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jang Wook CHOI, Ali COSKUN, Sung Hun CHOI, Tae Woo KWON
  • Publication number: 20200067069
    Abstract: A method of preparing a structure, more particularly, a method of preparing a structure capable of ensuring a space for carrying an electrode active material by a simple method which includes an electrospinning process using a double nozzle electrospinning device and a heat treatment process.
    Type: Application
    Filed: June 22, 2018
    Publication date: February 27, 2020
    Applicants: LG CHEM, LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Eunkyung PARK, Jang Wook CHOI, Sung Hyeon PARK, Minchul JANG, Suk Il YOUN, Byoungkuk SON, Se Ho PARK