Patents by Inventor Yu Ha

Yu Ha 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: 20210328266
    Abstract: An electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, an electrolyte solution includes a lithium salt, an additive including a compound represented by Formula 1, and an organic solvent. In some embodiments, the lithium secondary battery includes a positive electrode, a negative electrode which includes a negative electrode active material containing SiOx (0<x?2), a separator, and the electrolyte solution.
    Type: Application
    Filed: December 17, 2019
    Publication date: October 21, 2021
    Applicant: LG Energy Solution, Ltd.
    Inventors: Hyun Seung Kim, Chul Haeng Lee, Yu Ha An, Jeong Woo Oh
  • Publication number: 20210184257
    Abstract: A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution for a lithium secondary battery, includes a lithium salt, an organic solvent, and an additive, wherein the additive includes a compound represented by Formula 1.
    Type: Application
    Filed: September 11, 2019
    Publication date: June 17, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Hyun Seung Kim, Chul Haeng Lee, Yu Ha An, Jeong Woo Oh
  • Patent number: 10985412
    Abstract: A method for manufacturing a lithium secondary battery including the steps of manufacturing a lithium secondary battery including an electrode assembly, a non-aqueous electrolyte in which the electrode assembly is impregnated, and a battery case receiving the non-aqueous electrolyte; performing formation of the lithium secondary battery; and performing a degassing process for removing gas generated inside the lithium secondary battery, wherein the non-aqueous electrolyte includes a lithium salt, an organic solvent and 1,2,3-trifluorobenzene as an additive, wherein the 1,2,3-trifluorobenzene is included in an amount of 0.1 wt % to 10 wt % based on the total weight of the non-aqueous electrolyte, and the formation step is performed by charging the state of charge (SOC) of the battery up to 10% to 80%, while applying a voltage of 3.5 V to 4.5 V under a pressure of 0.5 kgf/cm2 to 5 kgf/cm2 at 45° C. to 80° C.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: April 20, 2021
    Inventors: Jung Min Lee, Young Min Lim, Chul Haeng Lee, Yu Ha An, Yi Jin Jung, Yeon Ji Oh
  • Publication number: 20200343588
    Abstract: The present invention relates to an electrolyte for a lithium secondary battery and a lithium secondary battery including the same, the electrolyte including a lithium salt, an additive containing a compound represented by Formula 1, and an organic solvent.
    Type: Application
    Filed: June 11, 2019
    Publication date: October 29, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Hyun Seung Kim, Chul Haeng Lee, Yu Ha An, Jeong Woo Oh
  • Patent number: 10629956
    Abstract: The present invention relates to a method of preparing a lithium secondary battery which includes preparing a lithium secondary battery, which includes an electrode assembly including a positive electrode, a separator, and a negative electrode, a non-aqueous electrolyte solution, in which the electrode assembly is impregnated, and a battery case accommodating the electrode assembly and the non-aqueous electrolyte solution; performing formation on the lithium secondary battery by charging and discharging the lithium secondary battery; and degassing, wherein the positive electrode includes a positive electrode active material and carbon nanotubes as a conductive agent, the non-aqueous electrolyte solution includes a lithium salt, an organic solvent, and monofluorobenzene as an additive, and the performing of the formation is performed by charging to a state of charge (SOC) of 65% to 80% while applying a pressure of 0.5 kgf/cm2 to 5 kgf/cm2 at 60° C. to 80° C.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: April 21, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Jung Min Lee, Young Min Lim, Chul Haeng Lee, Yu Ha An, Yi Jin Jung
  • Publication number: 20190237823
    Abstract: A method for manufacturing a lithium secondary battery including the steps of manufacturing a lithium secondary battery including an electrode assembly, a non-aqueous electrolyte in which the electrode assembly is impregnated, and a battery case receiving the non-aqueous electrolyte; performing formation of the lithium secondary battery; and performing a degassing process for removing gas generated inside the lithium secondary battery, wherein the non-aqueous electrolyte includes a lithium salt, an organic solvent and 1,2,3-trifluorobenzen as an additive, wherein the 1,2,3-trifluorobenzen is included in an amount of 0.1 wt % to 10 wt % based on the total weight of the non-aqueous electrolyte, and the formation step is performed by charging the state of charge (SOC) of the battery up to 10% to 80%, while applying a voltage of 3.5 V to 4.5 V under a pressure of 0.5 kgf/cm2 to 5 kgf/cm2 at 45° C. to 80° C.
    Type: Application
    Filed: February 2, 2018
    Publication date: August 1, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Jung Min Lee, Young Min Lim, Chul Haeng Lee, Yu Ha An, Yi Jin Jung, Yeon Ji Oh
  • Publication number: 20190074538
    Abstract: The present invention relates to a method of preparing a lithium secondary battery which includes preparing a lithium secondary battery, which includes an electrode assembly including a positive electrode, a separator, and a negative electrode, a non-aqueous electrolyte solution, in which the electrode assembly is impregnated, and a battery case accommodating the electrode assembly and the non-aqueous electrolyte solution; performing formation on the lithium secondary battery by charging and discharging the lithium secondary battery; and degassing, wherein the positive electrode includes a positive electrode active material and carbon nanotubes as a conductive agent, the non-aqueous electrolyte solution includes a lithium salt, an organic solvent, and monofluorobenzene as an additive, and the performing of the formation is performed by charging to a state of charge (SOC) of 65% to 80% while applying a pressure of 0.5 kgf/cm2 to 5 kgf/cm2 at 60° C. to 80° C.
    Type: Application
    Filed: January 22, 2018
    Publication date: March 7, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Jung Min Lee, Young Min Lim, Chul Haeng Lee, Yu Ha An, Yi Jin Jung
  • Patent number: 9666901
    Abstract: An additive for an electrolyte solution includes a lithium salt having an oxalato complex as an anion and a compound represented by following Chemical Formula 1. Wherein, a represents C or Si, b represents H or F, and n represents an integer of 1 to 5. A non-aqueous electrolyte solution including the additive and a lithium secondary battery including the electrolyte solution also are provided.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: May 30, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Kyoung Ho Ahn, Chul Haeng Lee, Doo Kyung Yang, Young Min Lim, Yu Ha An, Min Jung Kim
  • Patent number: 9614253
    Abstract: Provided is a non-aqueous electrolyte solution including a non-aqueous organic solvent, an imide-based lithium salt, and at least one additive selected from the group consisting of lithium difluoro bis(oxalato)phosphate (LiDFOP), (trimethylsilyl)propyl phosphate (TMSPa), 1,3-propene sultone (PRS), and ethylene sulfate (ESa), as an electrolyte solution additive. According to the electrolyte solution additive for a lithium secondary battery of the present invention, the electrolyte solution additive may improve output characteristics at high and low temperatures and may prevent a swelling phenomenon by suppressing the decomposition of PF6? on the surface of a cathode, which may occur during a high-temperature cycle of a lithium secondary battery including the electrolyte solution additive, and preventing an oxidation reaction of an electrolyte solution.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: April 4, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Gwang Yeon Kim, Chul Haeng Lee, Doo Kyung Yang, Young Min Lim, Shul Kee Kim, Yu Ha An, Jin Hyun Park
  • Patent number: 9608290
    Abstract: Provided is an electrolyte solution additive including lithium difluorophosphate (LiDFP), a vinylene carbonate-based compound, and a sultone-based compound. Also, a non-aqueous electrolyte solution including the electrolyte solution additive and a lithium secondary battery including the non-aqueous electrolyte solution are provided. The lithium secondary battery including the electrolyte solution additive of the present invention may improve low-temperature output characteristics, high-temperature cycle characteristics, output characteristics after high-temperature storage, and swelling characteristics.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: March 28, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Young Min Lim, Chul Haeng Lee, Doo Kyung Yang, Yu Ha An
  • Patent number: 9590272
    Abstract: The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery, comprising a sulfolane-based additive; and a lithium secondary battery using the same. The non-aqueous electrolyte solution for a lithium secondary battery according to the present invention comprises an ionizable lithium salt; an organic solvent; and a sulfolane compound of formula (I), the sulfolane compound being present in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of the total weight of the lithium salt and the organic solvent. The non-aqueous electrolyte solution for a lithium secondary battery according to the present invention can exhibit superior storage characteristic and life cycle at a high temperature, with maintaining good output characteristic at a low temperature.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: March 7, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Yu-Ha An, Doo Kyung Yang, Chul-Haeng Lee, Young-Min Lim, Jong-Ho Jeon
  • Patent number: 9337512
    Abstract: Disclosed is a non-aqueous electrolyte for a lithium secondary battery and a lithium secondary battery comprising the same. The non-aqueous electrolyte including a lithium salt and an organic solvent may further include, as an additive, (a) halogenated alkyl silane and (b) any one of (b-1) succinic anhydride, (b-2) (meth)acrylic acid ester of pentaerythritol or dipentaerythritol, and (b-3) mixtures thereof. The non-aqueous electrolyte for a lithium secondary battery may improve the high-temperature storage performance and the cycling performance.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: May 10, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Yu-Ha An, Sung-Hoon Yu, Bo-Ra Shin
  • Publication number: 20160028115
    Abstract: Provided is a non-aqueous electrolyte solution including a non-aqueous organic solvent, an imide-based lithium salt, and at least one additive selected from the group consisting of lithium difluoro bis(oxalato)phosphate (LiDFOP), (trimethylsilyl)propyl phosphate (TMSPa), 1,3-propene sultone (PRS), and ethylene sulfate (ESa), as an electrolyte solution additive. According to the electrolyte solution additive for a lithium secondary battery of the present invention, the electrolyte solution additive may improve output characteristics at high and low temperatures and may prevent a swelling phenomenon by suppressing the decomposition of PF6? on the surface of a cathode, which may occur during a high-temperature cycle of a lithium secondary battery including the electrolyte solution additive, and preventing an oxidation reaction of an electrolyte solution.
    Type: Application
    Filed: October 31, 2014
    Publication date: January 28, 2016
    Applicant: LG Chem, Ltd.
    Inventors: Gwang Yeon Kim, Chul Haeng Lee, Doo Kyung Yang, Young Min Lim, Shul Kee Kim, Yu Ha An, Jin Hyun Park
  • Publication number: 20140272604
    Abstract: Provided is an electrolyte solution additive including lithium difluorophosphate (LiDFP), a vinylene carbonate-based compound, and a sultone-based compound. Also, a non-aqueous electrolyte solution including the electrolyte solution additive and a lithium secondary battery including the non-aqueous electrolyte solution are provided. The lithium secondary battery including the electrolyte solution additive of the present invention may improve low-temperature output characteristics, high-temperature cycle characteristics, output characteristics after high-temperature storage, and swelling characteristics.
    Type: Application
    Filed: May 29, 2014
    Publication date: September 18, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Young Min Lim, Chul Haeng Lee, Doo Kyung Yang, Yu Ha An
  • Publication number: 20140242472
    Abstract: The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery, comprising a sulfolane-based additive; and a lithium secondary battery using the same. The non-aqueous electrolyte solution for a lithium secondary battery according to the present invention comprises an ionizable lithium salt; an organic solvent; and a sulfolane compound of formula (I), the sulfolane compound being present in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of the total weight of the lithium salt and the organic solvent. The non-aqueous electrolyte solution for a lithium secondary battery according to the present invention can exhibit superior storage characteristic and life cycle at a high temperature, with maintaining good output characteristic at a low temperature.
    Type: Application
    Filed: May 14, 2014
    Publication date: August 28, 2014
    Applicant: LG Chem, Ltd.
    Inventors: Yu-Ha An, Doo Kyung Yang, Chul-Haeng Lee, Young-Min Lim, Jong-Ho Jeon
  • Publication number: 20140011081
    Abstract: An additive for an electrolyte solution includes a lithium salt having an oxalato complex as an anion and a compound represented by following Chemical Formula 1. Wherein, a represents C or Si, b represents H or F, and n represents an integer of 1 to 5. A non-aqueous electrolyte solution including the additive and a lithium secondary battery including the electrolyte solution also are provided.
    Type: Application
    Filed: August 30, 2013
    Publication date: January 9, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Kyoung Ho Ahn, Chul Haeng Lee, Doo Kyung Yang, Young Min Lim, Yu Ha An, Min Jung Kim
  • Publication number: 20100306794
    Abstract: A channel management method is provided for use in a channel management device. The channel management method includes the following steps. First, a scan request is received. Also, a number of television channels are scanned to generate a first set of channel list. Next, a number of network channels are scanned to generate a second set of channel list. Then, an integrated channel list is generated according to at least one set of channel lists which at least includes the first and the second set of channel lists. Afterwards, the content of a corresponding program is provided according to the integrated channel list and a selected channel thereof, when the selected channel is selected.
    Type: Application
    Filed: November 4, 2009
    Publication date: December 2, 2010
    Applicant: TECO ELECTRIC & MACHINERY CO., LTD.
    Inventors: Houng-Jyh Wang, Ting-Chang Wu, Yao-Ching Huang, Jian-Yu Ha
  • Publication number: 20100306653
    Abstract: A network-based multimedia play method is provided for playing a number of programs. The method includes the following steps. First, a source code of a multimedia webpage is obtained. Next, the source code of the webpage is parsed to obtain a number of program titles and a number of corresponding program website addresses. Then, at least one corresponding file link is obtained according to each program website address, wherein each file link is an access link of a multimedia file. Afterwards, a play list is generated according to each program title and the at least one corresponding file link of each program title. Then, the programs are played according to the play list, wherein each program corresponds to at least one multimedia files over a network.
    Type: Application
    Filed: November 4, 2009
    Publication date: December 2, 2010
    Applicant: TECO ELECTRIC & MACHINERY CO., LTD.
    Inventors: Houng-Jyh Wang, Jian-Yu Ha
  • Publication number: 20100240890
    Abstract: The present invention relates to novel benzamidine derivatives, process for the preparation thereof and pharmaceutical composition comprising the same. The novel benzamidine derivatives of the present invention are useful for the prevention and treatment of osteoporosis, bone fractures and allergic inflammatory diseases.
    Type: Application
    Filed: August 4, 2005
    Publication date: September 23, 2010
    Inventors: Jin Soo Lee, Seok Hoon Ahn, Young Goo Jin, Sang Mi Jin, Whui-Jung Park, Sae Kwang Ku, Yu Ha Hwang, Pan Soo Kim, Sun Shin Yi, Jei Man Ryu
  • Publication number: 20060282982
    Abstract: A door damper. The door damper includes a rotational shaft rotatably coupled to a door, a rotating resistance unit to generate rotating resistance to the rotational shaft, and a latching device latched to the rotational shaft and the door so as to allow the door and the rotational shaft to rotate together in a predetermined region. The latching device includes a free rotating section enabling free rotation of the door at an initial stage of opening the door, and a latching section enabling the latching device to be latched to the rotational shaft and the door at a final stage of opening the door so as to allow the door and the rotational shaft to rotate together. With the door damper, the door of electronic appliances can be smoothly opened without impact, and can be easily closed.
    Type: Application
    Filed: November 15, 2005
    Publication date: December 21, 2006
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sung Kim, Yu Ha, Yun Hwang, Seok Hong, Pung Cho, Kyoung Kim, Kil Lee, Cheol Kim, Tae Kim, Sang Kang