Patents by Inventor Sung-Won Choi

Sung-Won 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: 20210104724
    Abstract: Systems and methods for silicon-dominant lithium-ion cells with controlled utilization of silicon may include a cathode, an electrolyte, and an anode, where the anode has an active material comprising more than 50% silicon. The battery may be charged by lithiating silicon while not lithiating carbon. The active material may comprise more than 70% silicon. A voltage of the anode during discharge of the battery may remain above a minimum voltage at which silicon can be lithiated. The anode may have a specific capacity of greater than 3000 mAh/g. The battery may have a specific capacity of greater than 1000 mAh/g. The anode may have a greater than 90% initial Coulombic efficiency and may be polymer binder free. The battery may be charged at a 10 C rate or higher. The battery may be charged at temperatures below freezing without lithium plating. The electrolyte may comprise a liquid, solid, or gel.
    Type: Application
    Filed: October 7, 2019
    Publication date: April 8, 2021
    Inventors: Benjamin Park, Ian Browne, Sung Won Choi, Fred Bonhomme
  • Publication number: 20210098784
    Abstract: Systems and methods for silicon dominant lithium-ion cells with controlled lithiation of silicon may include a cathode, an electrolyte, and an anode. The anode may include silicon lithiated at a level after discharge that is configured to be above a minimum threshold level, where the minimum threshold lithiation is 3% silicon lithiation. The lithiation level of the silicon after charging the battery may range between 30% and 95% silicon lithiation, between 30% and 75% silicon lithiation, between 30% and 65% silicon lithiation, or between 30% and 50% silicon lithiation. The lithiation level of the silicon after discharging the battery may range between 3% and 50% silicon lithiation, between 3% and 30% silicon lithiation, or between 3% and 10% silicon lithiation. The minimum threshold level may be a lithiation level below which a cycle life of the battery degrades. The electrolyte may include a liquid, solid, or gel.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 1, 2021
    Inventors: Benjamin Park, Ian Browne, Sung Won Choi, Fred Bonhomme
  • Publication number: 20210083276
    Abstract: Disclosed are anodes created using water based adhesive solutions, low temperature methods for laminating anodes comprising water based adhesives, and alkali ion batteries that comprise the anodes.
    Type: Application
    Filed: September 13, 2019
    Publication date: March 18, 2021
    Inventors: Ambica J. Nair, Younes Ansari, Frederic Bonhomme, Benjamin Park, Sung Won Choi, Giulia Canton
  • Publication number: 20200373620
    Abstract: Electrolytes and electrolyte additives for energy storage devices comprising an ether compound are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, an electrolyte, and at least one electrolyte additive selected from ether compounds.
    Type: Application
    Filed: August 10, 2020
    Publication date: November 26, 2020
    Inventors: Liwen Ji, Benjamin Yong Park, Heidi Anderson, Sung Won Choi
  • Patent number: 10815127
    Abstract: Provided herein is a method for manufacturing activated carbon that providing a carbon material in a reactor, carbonizing the carbon material by a first heat-treating under an inert gas atmosphere, first activating the carbonized carbon material by a second heat-treating under an oxidizing gas atmosphere, and second activating the first activated material by a third heat-treating under a carbon dioxide atmosphere.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: October 27, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sung Won Choi, Doo Nam Moon, Byung Joo Kim, Hye Min Lee
  • Patent number: 10811727
    Abstract: Electrolytes and electrolyte additives for energy storage devices comprising an ether compound are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, an electrolyte, and at least one electrolyte additive selected from ether compounds.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: October 20, 2020
    Assignee: Enevate Corporation
    Inventors: Liwen Ji, Benjamin Yong Park, Heidi Anderson, Sung Won Choi
  • Patent number: 10747123
    Abstract: A semiconductor device includes a semiconductor substrate including an in-cell area and a scribe lane defining the in-cell area, a first overlay pattern on the semiconductor substrate, and a second overlay pattern adjacent to the first overlay pattern, wherein the first overlay pattern is a diffraction-based overlay (DBO) pattern and the second overlay pattern is a scanning electron microscope (SEM) overlay pattern.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: August 18, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-sun Kim, Young-sik Park, Min-keun Kwak, Byoung-hoon Kim, Yong-chul Kim, Hyun-jeong Lee, Sung-won Choi
  • Publication number: 20200106358
    Abstract: The present invention relates to a multi-path converter, which adds a current transfer path using a capacitor to a current transfer path using an inductor to supply a current that is output to an output end (load) to a plurality of parallel paths, thereby reducing a total RMS current flowing through the inductor, and a control method therefor.
    Type: Application
    Filed: October 2, 2019
    Publication date: April 2, 2020
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Gyu Hyeong Cho, Yeun Hee Huh, Se Un Shin, Sung Won Choi, Yong Min Ju, Sang Jin Lim
  • Patent number: 10573633
    Abstract: A semiconductor device includes a first overlay group and a second overlay group disposed on a semiconductor substrate. The first overlay group includes first lower overlay patterns which extend in a first direction, first upper overlay patterns overlapping the first lower overlay patterns, and first via overlay patterns interposed between the first lower overlay patterns and the first upper overlay patterns. The second overlay group includes second lower overlay patterns which extend in a second direction, second upper overlay patterns overlapping the second lower overlay patterns, and second via overlay patterns interposed between the second lower overlay patterns and the second upper overlay patterns. The second lower overlay patterns include end portions adjacent to and spaced apart from the first overlay group.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: February 25, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae Sun Kim, Hyun Jae Kang, Tae Hoi Park, Jin Seong Lee, Eun Sol Choi, Min Keun Kwak, Byung Kap Kim, Sung Won Choi
  • Publication number: 20200014068
    Abstract: An energy storage device comprising a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode comprises a self-supporting composite material film, a separator between the first electrode and the second electrode, and an electrolyte in contact with the first electrode, the second electrode, and the separator, wherein the electrolyte comprises at least one of a fluorine-containing cyclic carbonate, a fluorine-containing linear carbonate, and a fluoroether. The composite material film having greater than 0% and less than about 90% by weight of silicon particles, and greater than 0% and less than about 90% by weight of one or more types of carbon phases. At least one of the one or more types of carbon phases can be a substantially continuous phase that holds the composite material film together such that the silicon particles are distributed throughout the composite material film.
    Type: Application
    Filed: September 18, 2019
    Publication date: January 9, 2020
    Inventors: Heidi Leighette Anderson, Benjamin Yong Park, Hong Gan, Sung Won Choi
  • Patent number: 10516155
    Abstract: Electrodes and methods of forming electrodes are described herein. The electrode can be an electrode of an electrochemical cell or battery. The electrode includes a current collector and a film in electrical communication with the current collector. The film may include a carbon phase that holds the film together. The electrode further includes an electrode attachment substance that adheres the film to the current collector.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: December 24, 2019
    Assignee: Enevate Corporation
    Inventors: Benjamin Yong Park, Sung Won Choi, Ian Russell Browne, William Hubert Schank
  • Patent number: 10461366
    Abstract: An energy storage device includes a first electrode and a second electrode, a separator between the first electrode and the second electrode, and an electrolyte in contact with the first electrode, the second electrode, and the separator. The electrolyte includes at least one of a fluorine-containing cyclic carbonate, a fluorine-containing linear carbonate, and a fluoroether. At least one of the first electrode and the second electrode includes a self-supporting composite material film. The composite material film has greater than 0% and less than about 90% by weight of silicon particles, and greater than 0% and less than about 90% by weight of one or more types of carbon phases. At least one of the one or more types of carbon phases can be a substantially continuous phase that holds the composite material film together such that the silicon particles are distributed throughout the composite material film.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: October 29, 2019
    Assignee: ENEVATE CORPORATION
    Inventors: Heidi Leighette Anderson, Benjamin Yong Park, Hong Gan, Sung Won Choi
  • Publication number: 20190241437
    Abstract: Provided herein is a method for manufacturing activated carbon that providing a carbon material in a reactor, carbonizing the carbon material by a first heat-treating under an inert gas atmosphere, first activating the carbonized carbon material by a second heat-treating under an oxidizing gas atmosphere, and second activating the first activated material by a third heat-treating under a carbon dioxide atmosphere.
    Type: Application
    Filed: May 24, 2018
    Publication date: August 8, 2019
    Inventors: Sung Won Choi, Doo Nam Moon, Byung Joo Kim, Hye Min Lee
  • Publication number: 20190190069
    Abstract: Electrolytes and electrolyte additives for energy storage devices comprising linear carbonate compounds.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 20, 2019
    Inventors: Liwen Ji, Benjamin Yong Park, Sung Won Choi, Heidi Anderson
  • Publication number: 20190190070
    Abstract: Electrolytes and electrolyte additives for energy storage devices comprising a carboxylic ether, a carboxylic acid based salt, or an acrylate electrolyte are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, an electrolyte, and at least one electrolyte additive selected from carboxylic ethers, carboxylic acid based salts, and acrylates.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 20, 2019
    Inventors: Liwen Ji, Benjamin Yong Park, Ian Browne, Tracy Ho, Sung Won Choi
  • Publication number: 20190181502
    Abstract: Electrolytes and electrolyte additives for energy storage devices comprising an ether compound are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, an electrolyte, and at least one electrolyte additive selected from ether compounds.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 13, 2019
    Inventors: Liwen Ji, Benjamin Yong Park, Heidi Anderson, Sung Won Choi
  • Publication number: 20190155174
    Abstract: A semiconductor device includes a semiconductor substrate including an in-cell area and a scribe lane defining the in-cell area, a first overlay pattern on the semiconductor substrate, and a second overlay pattern adjacent to the first overlay pattern, wherein the first overlay pattern is a diffraction-based overlay (DBO) pattern and the second overlay pattern is a scanning electron microscope (SEM) overlay pattern.
    Type: Application
    Filed: November 20, 2018
    Publication date: May 23, 2019
    Inventors: Tae-sun KIM, Young-sik PARK, Min-keun KWAK, Byoung-hoon KIM, Yong-chul KIM, Hyun-jeong LEE, Sung-won CHOI
  • Patent number: 10292932
    Abstract: Disclosed are an anionic drug-containing polymeric micelle particle comprising: an anionic drug as an active ingredient; a cationic lipid; and an amphiphilic block copolymer, wherein the anionic drug forms a complex with the cationic lipid, and the complex is entrapped in the micelle structure of the amphiphilic block copolymer, and a method for preparing the same. The particle may increase stability of the anionic drug in blood or in a body fluid, and it may enable intracellular delivery to improve efficacy of anionic drugs.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: May 21, 2019
    Assignee: SAMYANG BIOPHARMACEUTICALS CORPORATION
    Inventors: Se-Ho Kim, Ji-Yeon Son, Muhn-Ho La, Sung-Won Choi, Min-Hyo Seo
  • Publication number: 20180175016
    Abstract: A semiconductor device includes a first overlay group and a second overlay group disposed on a semiconductor substrate. The first overlay group includes first lower overlay patterns which extend in a first direction, first upper overlay patterns overlapping the first lower overlay patterns, and first via overlay patterns interposed between the first lower overlay patterns and the first upper overlay patterns. The second overlay group includes second lower overlay patterns which extend in a second direction, second upper overlay patterns overlapping the second lower overlay patterns, and second via overlay patterns interposed between the second lower overlay patterns and the second upper overlay patterns. The second lower overlay patterns include end portions adjacent to and spaced apart from the first overlay group.
    Type: Application
    Filed: December 4, 2017
    Publication date: June 21, 2018
    Inventors: Tae Sun Kim, Hyun Jae Kang, Tae Hoi Park, Jin Seong Lee, Eun Sol Choi, Min Keun Kwak, Byung Kap Kim, Sung Won Choi
  • Patent number: 9944544
    Abstract: Disclosed is a 3-dimensional porous mono-polar electrode body that includes a 3-dimensional porous parent substance, which has a 3-dimensional structure including a side and a remaining side that communicate with each other via a plurality of pores arranged in multiple layers and which is made of a metal material to have dimensional stability, and an electrode catalyst layer applied on the 3-dimensional porous parent substance. The 3-dimensional porous mono-polar electrode body is used to remove microorganisms contained in treatment water to thus minimize the consumption of power, which is required to remove the microorganisms, prevent secondary pollution, and ensure the durability of an electrode.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: April 17, 2018
    Assignees: Elchemtech Co., Ltd.
    Inventors: Sang Bong Moon, Hye Young Jung, Yun Ki Choi, So Young Kim, Dae Jin Yoon, Ja Young Kim, Su Hyun Im, Min Ah Song, Tae Lim Lee, Chang Hwan Moon, Ji Yeong Kim, Jun Young Lee, Sung Won Choi