Patents by Inventor Ho Taek Lee

Ho Taek 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).

  • Patent number: 10497976
    Abstract: A lithium air battery may include an electrolyte with a donor number of 10 to 40; and a quinone-based liquid catalyst which added to the electrolyte to induce a discharge in the solution.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: December 3, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Seoul National University R&DB Foundation
    Inventors: Won Keun Kim, Jin Soo Kim, Kyoung Han Ryu, Ho Taek Lee, Byung Ju Lee, Ki Suk Kang, Young Min Ko
  • Patent number: 10381682
    Abstract: Disclosed is a lithium ion-conductive sulfide-based solid electrolyte which includes nickel sulfide and, accordingly, the solid electrolyte can obtain a novel structure and performance. More particularly, the sulfide-based solid electrolyte includes lithium sulfide (Li2S), diphosphorus pentasulfide (P2S5), and nickel sulfide (Ni3S2) in a specific ratio by mol % and exhibits a novel crystal structure due to nickel (Ni). Accordingly, the sulfide-based solid electrolyte has greater lithium ion conductivity than an conventional sulfide-based solid electrolyte and a stable crystal structure.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: August 13, 2019
    Assignees: Hyundai Motor Company, Korea Institute of Science and Technology
    Inventors: Yong Jun Jang, Ju Young Sung, Yong Sung Lee, Ho Taek Lee, Hyoung Chul Kim, Jong Ho Lee, Hun Gi Jung, Soo Young Cho, Yoon Sung Lee
  • Patent number: 10290896
    Abstract: A method of manufacturing a sulfide-based solid electrolyte through a wet process is provided. The method includes preparing a slurry by adding a solvent to a mixture including lithium sulfide and a sulfide of a group 14 or group 15 element and amorphizing the mixture by milling the slurry. The slurry is dried in order to remove the solvent. The dried mixture is crystallized by heat-treating to form the sulfide-based solid electrolyte.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: May 14, 2019
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Ju Young Sung, Ho Taek Lee, Jae Min Lim, Yong Jun Jang
  • Patent number: 10263307
    Abstract: Provided herein is an anode for a lithium air battery with a long lifetime and high lithium ion conductivity and a method for preparing thereof. The anode includes a lithium metal and a protective layer disposed on one surface of the lithium metal, in which the protective layer includes an inorganic material-based solid electrolyte powder dispersed in a polymer matrix.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: April 16, 2019
    Assignee: Hyundai Motor Company
    Inventors: Jong Chan Song, Ho Taek Lee, Sam Ick Son
  • Publication number: 20180342776
    Abstract: Disclosed herein is a sodium-air battery comprising a high-concentration electrolyte which can increase the chemical stability of the battery material and the discharge product in the sodium-air battery. The use of a liquid electrolyte comprising an ether-based solvent and a sodium salt at a concentration of 4 M or less but exceeding 0.5 M can significantly increase the chemical stability of the sodium-air battery and can suppress the formation of dendrites on the anode.
    Type: Application
    Filed: December 18, 2017
    Publication date: November 29, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Seoul National University R&DB Foundation
    Inventors: Won Keun KIM, Jin Soo KIM, Kyoung Han RYU, Ho Taek LEE, Ki Suk KANG, Hyeok Jun PARK, Young Joon BAE
  • Publication number: 20180294519
    Abstract: The present disclosure relates to garnet powder, a manufacturing method thereof, a solid electrolyte sheet using a hot press, and a manufacturing method thereof. In particular, the present disclosure provides a method for manufacturing Li7La3Zr2O12 (LLZ) garnet powder including preparing a mixture by first dry mixing Li2CO3, La2O3, ZrO2, and Al2O3. The mixture is first calcinated for 5 to 7 hours in a temperature range of 800 to 1000° C. The calcinated mixture is ground to a powder with an average particle size of 1 to 4 ?m through dry grinding. A cubic-phased LLZ garnet powder is prepared by second calcinating the ground mixture for 10 to 30 hours in a temperature range of 1100 to 1300° C.
    Type: Application
    Filed: June 5, 2018
    Publication date: October 11, 2018
    Inventors: Ju Young SUNG, Ho Taek LEE, Eun Ji KWON, Yong Jun JANG, Ji Na KIM
  • Publication number: 20180183102
    Abstract: A lithium air battery may include an electrolyte with a donor number of 10 to 40; and a quinone-based liquid catalyst which added to the electrolyte to induce a discharge in the solution.
    Type: Application
    Filed: December 18, 2017
    Publication date: June 28, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Seoul National University R&DB Foundation
    Inventors: Won Keun Kim, Jin Soo Kim, Kyoung Han Ryu, Ho Taek Lee, Byung Ju Lee, Ki Suk Kang, Young Min Ko
  • Patent number: 10008740
    Abstract: The present disclosure relates to garnet powder, a manufacturing method thereof, a solid electrolyte sheet using a hot press, and a manufacturing method thereof. In particular, the present disclosure provides a method for manufacturing Li7La3Zr2O12 (LLZ) garnet powder including preparing a mixture by first dry mixing Li2CO3, La2O3, ZrO2, and Al2O3. The mixture is first calcinated for 5 to 7 hours in a temperature range of 800 to 1000° C. The calcinated mixture is ground to a powder with an average particle size of 1 to 4 ?m through dry grinding. A cubic-phased LLZ garnet powder is prepared by second calcinating the ground mixture for 10 to 30 hours in a temperature range of 1100 to 1300° C.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: June 26, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Ju Young Sung, Ho Taek Lee, Eun Ji Kwon, Yong Jun Jang, Ji Na Kim
  • Publication number: 20180145369
    Abstract: A sulfide-based solid electrolyte contains a nickel (Ni) element and a halogen element. For example, a sulfide-based solid electrolyte can include, with respect to 100 parts by mole of a mixture of lithium sulfide (Li2S) and diphosphorus pentasulfide (P2S5), 5 parts by mole to 20 parts by mole of nickel sulfide (Ni3S2), and 5 parts by mole to 40 parts by mole of lithium halide.
    Type: Application
    Filed: April 9, 2017
    Publication date: May 24, 2018
    Inventors: Ju Young Sung, Ho Taek Lee, Jae Min Lim, Yong Jun Jang
  • Publication number: 20180138544
    Abstract: A method of manufacturing a sulfide-based solid electrolyte through a wet process is provided. The method includes preparing a slurry by adding a solvent to a mixture including lithium sulfide and a sulfide of a group 14 or group 15 element and amorphizing the mixture by milling the slurry. The slurry is dried in order to remove the solvent. The dried mixture is crystallized by heat-treating to form the sulfide-based solid electrolyte.
    Type: Application
    Filed: April 7, 2017
    Publication date: May 17, 2018
    Inventors: Ju Young Sung, Ho Taek Lee, Jae Min Lim, Yong Jun Jang
  • Publication number: 20180053978
    Abstract: Provided herein is an anode for a lithium air battery with a long lifetime and high lithium ion conductivity and a method for preparing thereof. The anode includes a lithium metal and a protective layer disposed on one surface of the lithium metal, in which the protective layer includes an inorganic material-based solid electrolyte powder dispersed in a polymer matrix.
    Type: Application
    Filed: December 13, 2016
    Publication date: February 22, 2018
    Applicant: Hyundai Motor Company
    Inventors: Jong Chan SONG, Ho Taek LEE, Sam lck SON
  • Publication number: 20170170523
    Abstract: Disclosed are a solid-state battery and a manufacturing method thereof. The solid-state battery includes two or more unit cells which are laminated by a serial or parallel method. In particular, the two or more unit cells are laminated such that a current collector of a unit cell contacts an electrode layer of a next unit cell. Accordingly it does not need to pressurize with a high pressure, which does not result in any short circuit between the unit cells, and the solid-state battery can stably operate.
    Type: Application
    Filed: October 10, 2016
    Publication date: June 15, 2017
    Inventors: Ji Na Kim, Ho Taek Lee, Eun Ji Kwon, Sang Jin Park
  • Publication number: 20170170514
    Abstract: Disclosed is a lithium ion-conductive sulfide-based solid electrolyte which includes nickel sulfide and, accordingly, the solid electrolyte can obtain a novel structure and performance. More particularly, the sulfide-based solid electrolyte includes lithium sulfide (Li2S), diphosphorus pentasulfide (P2S5), and nickel sulfide (Ni3S2) in a specific ratio by mol % and exhibits a novel crystal structure due to nickel (Ni). Accordingly, the sulfide-based solid electrolyte has greater lithium ion conductivity than an conventional sulfide-based solid electrolyte and a stable crystal structure.
    Type: Application
    Filed: August 11, 2016
    Publication date: June 15, 2017
    Inventors: Yong Jun Jang, Ju Young Sung, Yong Sung Lee, Ho Taek Lee, Hyoung Chul Kim, Jong Ho Lee, Hun Gi Jung, Soo Young Cho, Yoon Sung Lee
  • Patent number: 9577300
    Abstract: The present invention provides a lithium-air hybrid battery and a method for manufacturing the same, which has a structure in which a liquid electrolyte electrode and a solid electrolyte electrode are stacked on both sides of an ion conductive glass ceramic. That is, disclosed is a lithium-air hybrid battery and a method for manufacturing the same, which has a structure in which a lithium metal negative electrode includes a liquid electrolyte and a porous air positive electrode comprising a carbon, a catalyst, a binder and a solid electrolyte are separately stacked on both sides of an impermeable ion conductive glass ceramic, and the liquid electrolyte is present only in the lithium metal negative electrode.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: February 21, 2017
    Assignee: Hyundai Motor Company
    Inventors: Dong Hui Kim, Sam Ick Son, Kyoung Han Ryu, Jun Ki Rhee, Yun Seok Kim, Ho Taek Lee
  • Publication number: 20160372785
    Abstract: Disclosed are a method for manufacturing a lithium ion conductive sulfide compound, a lithium ion conductive sulfide compound manufactured by the same, and a solid electrolyte and an all solid battery comprising the same. Particularly, the lithium ion conductive sulfide compound that is manufactured by milling at low temperature so as to increase brittleness of raw materials has differentiated particle distribution, crystal structure and mixing property from the conventional one.
    Type: Application
    Filed: December 9, 2015
    Publication date: December 22, 2016
    Inventors: Yong Jun Jang, Ju Young Sung, Yong Sung Lee, Ho Taek Lee, Hyoung Chul Kim, Jong Ho Lee, Hun Gi Jung, Soo Young Cho
  • Patent number: 9476231
    Abstract: A pop up device of an outside door handle includes a motor part interlocking with a smart key and receiving a signal from the smart key to thereby be operated; a cam part connected to the motor part to be rotatable in a horizontal direction; and a grip handle body having one end provided at an outer side of a door of a vehicle and another end provided at a cam part side to thereby be mounted at a grip handle base on a door side so as to be popped up. Therefore, the grip handle body is popped up to improve convenience in operating the outside door handle when a passenger gets in the vehicle and to prevent damage to the vehicle and injury to a hand of the passenger, thereby making it possible to improve salability and stability.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: October 25, 2016
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: In Seong Park, Ho Taek Lee, Tae Yub Kim, Jong Yong Nam, Yong Lee
  • Publication number: 20160268638
    Abstract: Disclosed is a method of manufacturing an all-solid battery by a wet-dry mixing process, such that a binder can be uniformly dispersed in a solid electrolyte layer. As such, the size of the battery can be increased and and a thickness of the battery can be reduced.
    Type: Application
    Filed: December 11, 2015
    Publication date: September 15, 2016
    Inventors: Yong Jun Jang, Ho Taek Lee, Eun Ji Kwon, Ju Young Sung, Ji Na Kim
  • Publication number: 20160056519
    Abstract: The present invention provides a lithium-air hybrid battery and a method for manufacturing the same, which has a structure in which a liquid electrolyte electrode and a solid electrolyte electrode are stacked on both sides of an ion conductive glass ceramic. That is, disclosed is a lithium-air hybrid battery and a method for manufacturing the same, which has a structure in which a lithium metal negative electrode includes a liquid electrolyte and a porous air positive electrode comprising a carbon, a catalyst, a binder and a solid electrolyte are separately stacked on both sides of an impermeable ion conductive glass ceramic, and the liquid electrolyte is present only in the lithium metal negative electrode.
    Type: Application
    Filed: October 6, 2015
    Publication date: February 25, 2016
    Inventors: Dong Hui Kim, Sam Ick Son, Kyoung Han Ryu, Jun Ki Rhee, Yun Seok Kim, Ho Taek Lee
  • Publication number: 20160049688
    Abstract: The present disclosure relates to garnet powder, a manufacturing method thereof, a solid electrolyte sheet using a hot press, and a manufacturing method thereof. In particular, the present disclosure provides a method for manufacturing Li7La3Zr2O12 (LLZ) garnet powder including preparing a mixture by first dry mixing Li2CO3, La2O3, ZrO2, and Al2O3. The mixture is first calcinated for 5 to 7 hours in a temperature range of 800 to 1000° C. The calcinated mixture is ground to a powder with an average particle size of 1 to 4 ?m through dry grinding. A cubic-phased LLZ garnet powder is prepared by second calcinating the ground mixture for 10 to 30 hours in a temperature range of 1100 to 1300° C.
    Type: Application
    Filed: May 19, 2015
    Publication date: February 18, 2016
    Inventors: Ju Young SUNG, Ho Taek LEE, Eun Ji KWON, Yong Jun JANG, Ji Na KIM
  • Publication number: 20150333317
    Abstract: A method for manufacturing a cathode of a lithium-sulfur secondary battery includes powder-complexing of Li2S as a mother particle and a conducting material as a daughter particle. The powder complexed and a binder are mixed in a solvent to form a mixture, additional conducting material is added to the mixture, and then the mixture is further mixed. The mixture is placed in a ball mill and then mixed for 0.2-24 hours in the ball mill to obtain a slurry. The slurry is coated on a collector to a thickness of 0.005-0.2 mm. The coated slurry is dried with hot air at a temperature higher than ambient.
    Type: Application
    Filed: December 3, 2014
    Publication date: November 19, 2015
    Inventors: Ho Taek LEE, Sam Ick SON