Patents by Inventor Cheol-Soo Jung

Cheol-Soo 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).

  • Patent number: 9590271
    Abstract: The present invention relates to an electrolyte for a lithium battery and a lithium battery comprising the same. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and a first additive capable of forming a chelating complex with a transition metal and which is stable at voltages ranging from about 2.5 to about 4.8 V.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: March 7, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kyoung-Han Yew, Eui-Hwan Song, Cheol-Soo Jung, Yong-Beom Lee
  • Publication number: 20150024267
    Abstract: The present invention relates to an electrolyte having improved high-rate charge and discharge property, and a capacitor comprising the same, and more particularly to an electrolyte having improved high-rate charge and discharge property comprising an aromatic compound, which comprises at least one compound of the following Chemical Formula 1 to Chemical Formula 11 that can induce resonance effect of electron movement, and which is a substituted organic compound in which a functional group is present at a location that can structurally prevent local polarization effect, and the boiling point of which is 80° C. or higher, wherein R in the Chemical Formula 1 to Chemical Formula 11 is at least one functional group selected from the alkyl group consisting of methyl, ethyl, propyl and butyl, and a capacitor comprising the same.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 22, 2015
    Inventor: Cheol Soo JUNG
  • Publication number: 20140227590
    Abstract: The present invention relates to an electrolyte for a lithium battery and a lithium battery comprising the same. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and a first additive capable of forming a chelating complex with a transition metal and which is stable at voltages ranging from about 2.5 to about 4.8 V.
    Type: Application
    Filed: April 22, 2014
    Publication date: August 14, 2014
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Kyoung-Han Yew, Eui-Hwan Song, Cheol-Soo Jung, Yong-Beom Lee
  • Patent number: 8541128
    Abstract: Disclosed is a rechargeable lithium battery comprising a negative electrode and a positive electrode capable of intercalating and deintercalating lithium, and an electrolyte, wherein the electrolyte comprises a polyacrylate compound having three or more acrylic groups.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: September 24, 2013
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Takitaro Yamaguchi, Ryuichi Shimizu, Cheol-Soo Jung
  • Patent number: 7943257
    Abstract: Disclosed is a rechargeable lithium battery including a positive electrode and a negative electrode in which lithium intercalations occurs, and an electrolyte including a low-inflammability solvent with a heat of combustion of 19,000 kJ/kg or less, and a lithium salt.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: May 17, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Takitaro Yamaguchi, Ryuichi Shimizu, Cheol-Soo Jung
  • Patent number: 7846588
    Abstract: An electrolyte for a lithium secondary battery is provided. The electrolyte improves battery safety, high temperature storage characteristics, and electrochemical properties of lithium batteries. The electrolyte comprises at least one lithium salt and a non-aqueous organic solvent comprising a cyclic carbonate and a lactone-based compound. The lactone based compound comprises substituents selected from the group consisting of alkyl groups, alkenyl groups, alkynyl groups, aryl groups, and combinations thereof. A lithium battery is also provided, which comprises a negative electrode capable of intercalating/deintercalating lithium, a positive electrode capable of intercalating/deintercalating lithium, and an inventive electrolyte.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: December 7, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Cheol-Soo Jung, Bo-Geum Choi, Eui-Hwan Song
  • Patent number: 7776475
    Abstract: A lithium rechargeable battery includes a positive electrode that intercalates and deintercalates lithium and a negative electrode that intercalates and deintercalates lithium and has a current collector including Cu or a Cu alloy. In addition, the battery includes a separator interposed between the positive electrode and the negative electrode, and an electrolyte that transfers lithium ions.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: August 17, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ryuichi Shimizu, Takitaro Yamaguchi, Cheol-Soo Jung, Hyun-Jei Chung, Young-Chul Chang
  • Patent number: 7746417
    Abstract: A thin film transistor array panel comprising: an insulating substrate; gate lines formed on the insulating substrate; data lines defining a display region by intersecting the gate lines while being insulated; an electrostatic dispersion line intersecting the gate lines; diodes adhered to the gate lines and to the electrostatic dispersion line; and a repair line for repairing the data lines formed on the insulating substrate outside the display region and intersecting the electrostatic dispersion line while being insulated. According to the present invention, since static electricity flowing along the repair line is not transferred to the data lines, defects of a thin film transistor of the display region may be prevented.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: June 29, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Do-Gi Lim, Cheol-Soo Jung
  • Publication number: 20100104949
    Abstract: Disclosed is a rechargeable lithium battery including a positive electrode and a negative electrode in which lithium intercalations occurs, and an electrolyte including a low-inflammability solvent with a heat of combustion of 19,000 kJ/kg or less, and a lithium salt.
    Type: Application
    Filed: April 15, 2009
    Publication date: April 29, 2010
    Inventors: Takitaro YAMAGUCHI, Ryuichi SHIMIZU, Cheol-Soo JUNG
  • Patent number: 7638242
    Abstract: A polymer electrolyte composition for a rechargeable lithium battery includes an acrylate-based polymer, a lactone-based compound having an alkyl substituent, a non-aqueous organic solvent, and a lithium salt. The electrolyte for a rechargeable lithium battery of the present invention exhibits excellent high temperature storage characteristics, excellent high temperature cycle-life characteristics, and improved safety without deteriorating cell performance.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: December 29, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Bo-Geum Choi, Cheol-Soo Jung, Eui-Hwan Song
  • Patent number: 7611801
    Abstract: A non-aqueous electrolyte having improved lithium ion conductivity and excellent voltage resistance is provided. A lithium rechargeable battery and a rechargeable battery system including the inventive non-aqueous electrolyte is also provided. The non-aqueous electrolyte includes at least one aromatic compound which is polymerizable at a working electrode potential of 4.2 to 4.5 V when a lithium metal is used as a counter electrode and platinum is used as a working electrode.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: November 3, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Takitaro Yamaguchi, Ryuichi Shimizu, Cheol-Soo Jung
  • Publication number: 20090061324
    Abstract: Disclosed is a rechargeable lithium battery comprising a negative electrode and a positive electrode capable of intercalating and deintercalating lithium, and an electrolyte, wherein the electrolyte comprises a polyacrylate compound having three or more acrylic groups.
    Type: Application
    Filed: October 16, 2008
    Publication date: March 5, 2009
    Inventors: Takitaro Yamaguchi, Ryuichi Shimizu, Cheol-Soo Jung
  • Patent number: 7491471
    Abstract: An electrolyte for a lithium secondary battery which has a non-aqueous organic solvent including a ?-butyrolactone and optionally a cyclic carbonate, an ester compound having an electron withdrawing group, and at least two salts. The lithium secondary battery including the electrolyte has good safety and good storage characteristics at high temperature.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: February 17, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Takitaro Yamaguchi, Ryuichi Shimizu, Hyun-Jei Chung, Cheol-Soo Jung, Hyeong-Gon Noh, Eui-Hwan Song, Joong-Hun Kim
  • Patent number: 7452635
    Abstract: Disclosed is a rechargeable lithium battery comprising a negative electrode and a positive electrode capable of intercalating and deintercalating lithium, and an electrolyte, wherein the electrolyte comprises a polyacrylate compound having three or more acrylic groups.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: November 18, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Takitaro Yamaguchi, Ryuichi Shimizu, Cheol-Soo Jung
  • Patent number: 7425388
    Abstract: An electrolyte for a lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive comprising a) a sulfone-based compound and b) a C3 to C30 organic peroxide or azo-based compound. The electrolyte may further include a poly(ester)(meth)acrylate or a polymer that is derived from a (polyester)polyol with at least three hydroxyl (—OH) groups, where a portion or all of the hydroxyl groups are substituted with a (meth)acrylic ester and the remaining hydroxyl groups that are not substituted with the (meth)acrylic ester are substituted with a group having no radical reactivity. The lithium battery comprising the electrolyte of the present invention has a significantly improved charge-discharge and cycle life characteristics, recovery capacity ratio at high temperature, and swelling inhibition properties.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: September 16, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yong-Chul Park, Won-Il Jung, Geun-Bae Kim, Jae-Phil Cho, Cheol-Soo Jung
  • Patent number: 7351501
    Abstract: Disclosed is a non-aqueous electrolyte for a rechargeable lithium battery including a polyether-modified silicon oil in which a polyether chain is bonded to a terminal end of a linear polysiloxane, a cyclic carbonate, and a lithium salt.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: April 1, 2008
    Assignee: Samsung SDI Co., Ltd
    Inventors: Cheol-Soo Jung, Takitaro Yamaguchi, Ryuichi Shimizu
  • Publication number: 20080029784
    Abstract: A thin film transistor array panel comprising: an insulating substrate; gate lines formed on the insulating substrate; data lines defining a display region by intersecting the gate lines while being insulated; an electrostatic dispersion line intersecting the gate lines; diodes adhered to the gate lines and to the electrostatic dispersion line; and a repair line for repairing the data lines formed on the insulating substrate outside the display region and intersecting the electrostatic dispersion line while being insulated. According to the present invention, since static electricity flowing along the repair line is not transferred to the data lines, defects of a thin film transistor of the display region may be prevented.
    Type: Application
    Filed: October 11, 2007
    Publication date: February 7, 2008
    Inventors: Do-Gi LIM, Cheol-Soo JUNG
  • Patent number: 7297979
    Abstract: A thin film transistor array panel comprising: an insulating substrate; gate lines formed on the insulating substrate; data lines defining a display region by intersecting the gate lines while being insulated; an electrostatic dispersion line intersecting the gate lines; diodes adhered to the gate lines and to the electrostatic dispersion line; and a repair line for repairing the data lines formed on the insulating substrate outside the display region and intersecting the electrostatic dispersion line while being insulated. According to the present invention, since static electricity flowing along the repair line is not transferred to the data lines, defects of a thin film transistor of the display region may be prevented.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: November 20, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Do-Gi Lim, Cheol-Soo Jung
  • Patent number: 7291860
    Abstract: A gate line extending in a horizontal direction is formed on an insulating substrate, and a data line is formed perpendicular to the gate line defining a pixel of a matrix array. Pixel electrodes receiving image signals through the data line are formed in a pixel, and a thin film transistor having a gate electrode connected to the gate line, a source electrode connected to the data line, and a drain electrode connected to the pixel electrode is formed on the portion where the gate lines and the data lines intersect. A storage wire including a storage electrode line in the horizontal direction, a storage electrode connected to the storage electrode line, and at least one of the storage electrode connection portions connecting storage electrodes of neighboring pixels is formed in the same direction as the gate line.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: November 6, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Cheol-Soo Jung, Young-Sun Kim, Ho-Joon Lee, Yeong-Hwan Cho, Hyeon-Hwan Kim, Bung-Hyuk Min, Woon-Yong Park, Il-Gon Kim, Jang-Soo Kim, Jin-Oh Kwag, Seog-Chae Lee
  • Patent number: 7229718
    Abstract: Disclosed is an electrolyte for a rechargeable lithium battery including 5 to 40 volume % of at least one fluorine-substituted ether compound represented by R1—O—R2 (wherein R1 and R2 are alkyl groups substituted with fluorine), having a substitution ratio of hydrogen with fluorine of 57 to 86%, a viscosity of 0.9 to 2.3 cp, and a boiling point of at least 88° C., and 60 to 90 volume % of a non-aqueous organic solvent having a flash point of at least 80° C.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: June 12, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Takitaro Yamaguchi, Ryuichi Shimizu, Cheol-Soo Jung