Patents by Inventor So-Ra Jung
So-Ra Jung 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).
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Publication number: 20240097112Abstract: A positive electrode for a lithium secondary battery includes a positive electrode collector, a first positive electrode active material layer formed on the positive electrode collector and includes a first positive electrode active material, and a second positive electrode active material layer formed on the first positive electrode active material layer and includes a second positive electrode active material. The first positive electrode active material and the second positive electrode active material include a lithium nickel-cobalt-based oxide in which an amount of nickel among total metallic components excluding lithium is 80 atm % or more, the first positive electrode active material has a molar ratio of nickel to cobalt of 18 or more, and the second positive electrode active material has a molar ratio of nickel to cobalt of less than 18.Type: ApplicationFiled: February 25, 2022Publication date: March 21, 2024Applicant: LG Energy Solution, Ltd.Inventors: Dong Hun Lee, Hak Yoon Kim, So Ra Baek, Hyuck Hur, Dong Hwi Kim, Hyeong Il Kim, Seul Ki Chae, Wang Mo Jung
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Publication number: 20240072244Abstract: A positive electrode active material for a lithium secondary battery comprising lithium transition metal oxide particles having a core-shell structure which includes a core portion and a shell portion disposed on a surface of the core portion. Wherein, the average crystallite size of the core portion is smaller than an average crystallite size of the shell portion and an amount of nickel among total transition metals included in the core portion and the shell portion is 80 atm % or more. A positive electrode active material, which suppresses decomposition of an electrolyte solution and occurrence of micro cracks of the positive electrode active material during charge and discharge by forming an average crystallite size of a core portion of the high-nickel positive electrode active material smaller than an average crystallite size of a shell portion, and a method of preparing the same.Type: ApplicationFiled: February 24, 2022Publication date: February 29, 2024Applicant: LG Energy Solution, Ltd.Inventors: Dong Hun Lee, Hak Yoon Kim, So Ra Baek, Hyuck Hur, Dong Hwi Kim, Hyeong Il Kim, Seul Ki Chae, Wang Mo Jung
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Patent number: 11916233Abstract: A positive electrode active material for a secondary battery which includes a nickel-based lithium composite transition metal oxide including nickel (Ni), wherein the lithium composite transition metal oxide satisfies Equation 1 and Equation 2 below 80 nm?crystallite sizeFWHM?150 nm??[Equation 1] ?size(|crystallite sizeIB?crystallite sizeFWHM|)?20??[Equation 2] wherein, in Equation 1 and Equation 2, crystallite sizeFWHM is a crystallite size obtained by calculating from X-ray diffraction (XRD) data using a full width at half maximum (FWHM) method, and crystallite sizeIB is a crystallite size obtained by calculating from XRD data using an integral breadth (IB) method.Type: GrantFiled: January 31, 2020Date of Patent: February 27, 2024Assignee: LG Energy Solution, Ltd.Inventors: So Ra Baek, Eun Sol Lho, Wang Mo Jung, Sang Wook Lee, Eun Jo
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Patent number: 10560816Abstract: An electronic device and an operating method in the electronic device are provided. The operating method includes identifying subscriber identity module (SIM) information corresponding to a SIM, which is functionally connected with the electronic device, transmitting the SIM information to an external device, receiving configuration information related to one or more network providers corresponding to the SIM information, and changing at least a portion of the software that is stored in the memory that is functionally connected with the electronic device or obtaining other software based on at least a portion of the received configuration information.Type: GrantFiled: October 12, 2016Date of Patent: February 11, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Jin Sohn, Hee-Hyun Kang, Eun-Seob Ko, Tae-Wan Kim, So-Ra Jung
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Patent number: 10017838Abstract: A method of extracting lithium from a lithium bearing solution and specifically, economically extracting lithium from a lithium bearing solution comprising the steps of: adding a nucleus particle to a lithium bearing solution; and precipitating the dissolved lithium in the lithium bearing solution as lithium phosphate by adding a phosphorous supplying material to the lithium bearing solution including the nucleus particle is provided.Type: GrantFiled: December 10, 2012Date of Patent: July 10, 2018Assignee: RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGYInventors: Uong Chon, Ki Young Kim, Gi-Chun Han, Chang Ho Song, Young Seok Jang, Kee-Uek Jeung, So Ra Jung
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Patent number: 9994931Abstract: Disclosed is a method of extracting lithium from a solution including lithium. The method of extracting lithium from a solution including lithium includes: separating the solution including lithium into a monovalent ion-containing solution and a solution including ions having more than divalence using a separation membrane having a negative charge on its surface; removing impurities from the monovalent ion-containing solution; and precipitating lithium dissolved in the monovalent ion-containing solution into lithium phosphate by adding a phosphorus-supplying material to the monovalent ion-containing solution.Type: GrantFiled: December 28, 2012Date of Patent: June 12, 2018Assignees: POSCO, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGYInventors: Uong Chon, Gi-Chun Han, Ki Young Kim, So Ra Jung, Kee Uek Jeung, Chang Ho Song, Young Seok Jang
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Publication number: 20170127214Abstract: An electronic device and an operating method in the electronic device are provided. The operating method includes identifying subscriber identity module (SIM) information corresponding to a SIM, which is functionally connected with the electronic device, transmitting the SIM information to an external device, receiving configuration information related to one or more network providers corresponding to the SIM information, and changing at least a portion of the software that is stored in the memory that is functionally connected with the electronic device or obtaining other software based on at least a portion of the received configuration information.Type: ApplicationFiled: October 12, 2016Publication date: May 4, 2017Inventors: Dong-Jin SOHN, Hee-Hyun KANG, Eun-Seob KO, Tae-Wan KIM, So-Ra JUNG
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Method for manufacturing lithium hydroxide and method using same for manufacturing lithium carbonate
Patent number: 9598291Abstract: The present invention relates to a method of manufacturing lithium hydroxide and a method of manufacturing lithium carbonate using the same. The method of manufacturing lithium hydroxide includes: preparation of a lithium phosphate aqueous solution including lithium phosphate particles; addition of a phosphate anion precipitation agent to the lithium phosphate aqueous solution; and precipitating a sparingly soluble phosphate compound through a reaction of cations of the phosphate anion precipitation agent with anions of the lithium phosphate.Type: GrantFiled: December 27, 2012Date of Patent: March 21, 2017Assignees: POSCO, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY, MPPLY CO., LTD.Inventors: Uong Chon, Im Chang Lee, Ki Young Kim, Gi-Chun Han, Chang Ho Song, So Ra Jung -
Publication number: 20150197830Abstract: Disclosed is a method of extracting lithium from a solution including lithium. The method of extracting lithium from a solution including lithium includes: separating the solution including lithium into a monovalent ion-containing solution and a solution including ions having more than divalence using a separation membrane having a negative charge on its surface; removing impurities from the monovalent ion-containing solution; and precipitating lithium dissolved in the monovalent ion-containing solution into lithium phosphate by adding a phosphorus-supplying material to the monovalent ion-containing solution.Type: ApplicationFiled: December 28, 2012Publication date: July 16, 2015Applicant: RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGYInventors: Uong Chon, Gi-Chun Han, Ki Young Kim, So Ra Jung, Kee Uek Jeung, Chang Ho Song, Young Seok Jang
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Method for Manufacturing Lithium Hydroxide and Method Using Same for Manufacturing Lithium Carbonate
Publication number: 20150071837Abstract: The present invention relates to a method of manufacturing lithium hydroxide and a method of manufacturing lithium carbonate using the same. The method of manufacturing lithium hydroxide includes: preparation of a lithium phosphate aqueous solution including lithium phosphate particles; addition of a phosphate anion precipitation agent to the lithium phosphate aqueous solution; and precipitating a sparingly soluble phosphate compound through a reaction of cations of the phosphate anion precipitation agent with anions of the lithium phosphate.Type: ApplicationFiled: December 27, 2012Publication date: March 12, 2015Inventors: Uong Chon, Im Chang Lee, Ki Young Kim, Gi-Chun Han, Chang Ho Song, So Ra Jung -
Publication number: 20140348734Abstract: A method of extracting lithium from a lithium bearing solution and specifically, economically extracting lithium from a lithium bearing solution comprising the steps of: adding a nucleus particle to a lithium bearing solution; and precipitating the dissolved lithium in the lithium bearing solution as lithium phosphate by adding a phosphorous supplying material to the lithium bearing solution including the nucleus particle is provided.Type: ApplicationFiled: December 10, 2012Publication date: November 27, 2014Inventors: Uong Chong, Ki Young Kim, Gi-Chun Han, Chang Ho Song, Young Seok Jang, Kee-Uek Jeung, So Ra Jung
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Publication number: 20120008515Abstract: An apparatus and a method for reducing a message transmission overhead in a wireless communication system that supports a Service Discovery Protocol (SDP). In the method, when a service discovery request message is received from a neighbor node, a hop count of the service discovery request message is determined. A maximum hop count of an advertisement message is determined with consideration of the hop count of the service discovery request message.Type: ApplicationFiled: July 8, 2011Publication date: January 12, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: So-Ra Jung
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Publication number: 20050187959Abstract: Disclosed is a method for transferring a message file from a client to a server over the Internet. When message file transfer is stopped after the client initiates the message file transfer to the server, the client sending a request for information of the transfer-stopped message file to the server. The server provides the transfer-stopped message file information to the client in response to the file information request. The client carrying out an upload resumption function to upload transfer-stopped partial contents of the message file to the server according to the transfer-stopped message file information provided from the server.Type: ApplicationFiled: October 6, 2004Publication date: August 25, 2005Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: So-Ra Jung, Hye-Young Sheen