Patents by Inventor Woo-Cheol Shin

Woo-Cheol Shin 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).

  • Additive for electrolyte of lithium battery, organic electrolytic solution comprising the same, and lithium battery using the organic electrolytic solution
    Patent number: 9406974
    Abstract: In an aspect, an additive for an electrolyte of a lithium battery, the additive including a compound including at least three nitrile moieties is provided.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: August 2, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Pavel Alexandrovich Shatunov, Woo-Cheol Shin, Sang-Hoon Kim, Jung-Yi Yu, Ha-Rim Lee, In-Haeng Cho, Khasanov Makhmut
  • Electrolyte for rechargeable lithium battery and rechargeable lithium battery including the same
    Patent number: 9406976
    Abstract: An electrolyte for a rechargeable lithium battery that includes a lithium salt and a non-aqueous organic solvent, wherein the non-aqueous organic solvent includes a fluoro-based solvent represented by the following Chemical Formula 1, and a rechargeable lithium battery including the same. R—O—R???Chemical Formula 1 In Chemical Formula 1, R and R? are independently a substituted or unsubstituted C1 to C6 alkyl group, or a substituted or unsubstituted C1 to C6 fluoroalkyl group, wherein at least one of R and R? is the substituted or unsubstituted C1 to C6 fluoroalkyl group, and a substitution ratio of fluoro in the fluoro-based solvent represented by the Chemical Formula 1 may range from more than about 0% to less than or equal to about 50%.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 2, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Myung-Hwan Jeong, Woo-Cheol Shin, Sang-Il Han, Jung-Yi Yu, Myung-Hoon Kim, Tae-Hyun Bae, Moon-Sung Kim, Min-Ju Lee, Sang-Geun Kim
  • ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME
    Publication number: 20160118686
    Abstract: An electrolyte for a rechargeable lithium battery includes a lithium salt, an organic solvent and an additive, where the additive includes a sulfur-containing compound represented by Chemical Formula 1, a phosphazene compound represented by Chemical Formula 2, and a nitrile-based compound. A rechargeable lithium battery includes the electrolyte. In Chemical Formulae 1 and 2, each substituent is the same as defined in the detailed description.
    Type: Application
    Filed: June 2, 2015
    Publication date: April 28, 2016
    Inventors: Moon-Sung Kim, Duck-Hyun Kim, Jeong-Hye Lee, Sang-Il Han, Pavel Alexandrovich Shatunov, Woo-Cheol Shin
  • RECHARGEABLE LITHIUM BATTERY
    Publication number: 20160079626
    Abstract: A rechargeable lithium battery includes a negative electrode including a negative active material including a Si-based material, a positive electrode, and an electrolyte including a lithium salt, an organic solvent, and an additive including lithium triflate and fluoroethylene carbonate. Embodiments of the rechargeable lithium battery have excellent irreversible characteristics and cycle-life characteristics.
    Type: Application
    Filed: June 2, 2015
    Publication date: March 17, 2016
    Inventors: Tae-Hyun Bae, Woo-Cheol Shin, Myung-Hoon Kim, Ae-Ran Kim
  • Electrolyte for rechargeable lithium battery and rechargeable lithium battery comprising same
    Patent number: 9276290
    Abstract: In one aspect, a rechargeable lithium battery comprising a non-aqueous electrolyte including an organic solvent; a lithium salt and a substituted 2-fluoroalkoxy-1,3,2-dioxaphospholane 2-oxide is provided. The 2-fluoroalkoxy-1,3,2-dioxaphospholane 2-oxide can be a compound represented by the following Chemical Formula 1.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: March 1, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang-Il Han, Woo-Cheol Shin, Jung-Yi Yu, Tae-Hyun Bae, Mi-Hyun Lee, Denis Chernyshov, Alexey Tereshchenko, Pavel Shatunov, Boris A. Trofimov, Nina K. Gusarova
  • Additive for electrolyte of lithium battery, organic electrolyte solution comprising the same, and lithium battery using the organic electrolyte solution
    Patent number: 9263766
    Abstract: An additive for an electrolyte of a lithium battery including a disultone-based compound represented by Formula 1 below, an organic electrolyte solution including the additive, and a lithium battery including the organic electrolyte solution are provided: wherein, in Formula 1, A1, A2, A3, and A4 are each independently a substituted or unsubstituted C1-C5 alkylene group; a carbonyl group; or a sulfinyl group.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: February 16, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Khasanov Makhmut, Sang-Hoon Kim, Ha-Rim Lee, Pavel Alexandrovich Shatunov, In-Haeng Cho, Woo-Cheol Shin
  • ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME
    Publication number: 20160013518
    Abstract: An electrolyte for a rechargeable lithium battery includes a lithium salt, an organic solvent, and an additive. The organic solvent includes a sulfur-containing compound represented by Chemical Formula 1 and a fluoroalkyl ether, and the additive includes a phosphazene compound represented by Chemical Formula 3. A rechargeable lithium battery including the electrolyte may have improved cycle-life characteristics and safety.
    Type: Application
    Filed: May 7, 2015
    Publication date: January 14, 2016
    Inventors: Duck-Hyun Kim, Moon-Sung Kim, Jeong-Hye Lee, Sang-Il Han, Pavel Alexandrovich Shatunov, Woo-Cheol Shin
  • Separator for rechargeable lithium battery and rechargeable lithium battery including the same
    Patent number: 9219264
    Abstract: A separator for a rechargeable lithium battery including a tungsten-doped vanadium oxide (VO2) phase transition material and the rechargeable lithium battery including the separator. Here, an explosion possibility of the rechargeable lithium battery including the separator may be prevented and delayed when the battery is excessively heated.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: December 22, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tae-Hyun Bae, Woo-Cheol Shin, Sang-Il Han, Jung-Yi Yu, Mi-Hyun Lee
  • Tool holder using shape memory alloy and tool holding method
    Patent number: 9180525
    Abstract: A tool holder holding a tool according to the present invention includes: a tool mounting unit forming and penetrating a tool fixing hole having an interior diameter that is relatively smaller than an exterior diameter of a shank unit of the tool; and at least one shape memory alloy ring inserted and arranged to a ring fixing hole formed at the tool mounting unit to have an interior diameter that is relatively larger than the tool fixing hole, wherein an interior diameter size of the tool fixing hole is forcibly changed by deformation of a shape memory alloy ring by a heating source and a cooling source provided to the shape memory alloy ring for clamping or unclamping the tool.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: November 10, 2015
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Jong Kweon Park, Woo Cheol Shin, Seung Kook Ro
  • ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME
    Publication number: 20150295275
    Abstract: An electrolyte for a rechargeable lithium battery includes a lithium salt, an organic solvent and an additive. The organic solvent includes a sulfur-containing compound represented by Chemical Formula 1, and the additive includes a phosphazene compound represented by Chemical Formula 2. A rechargeable lithium battery including the electrolyte may have improved performance and safety. In Chemical Formulae 1 and 2, the substituents are as defined in the detailed description.
    Type: Application
    Filed: January 21, 2015
    Publication date: October 15, 2015
    Inventors: Sang-Il Han, Duck-Hyun Kim, Young Sam Park, Moon-Sung Kim, Woo-Cheol Shin, Bong-Chull Kim, Jeong-Hye Lee, E-Rang Cho, Min-Young Lee, Ho-Seok Yang, Byung-Hwa Kim, Young-Hwan Park
  • Electrolyte additive and electrolyte including same and rechargeable lithium battery including electrolyte
    Patent number: 9127023
    Abstract: Disclosed are an electrolyte additive represented by the following Chemical Formula, an electrolyte including the same, and a rechargeable lithium battery. The electrolyte may have high dissolution capability in a non-aqueous organic solvent and high affinity for the surface of a negative electrode while promoting formation of a passivation film on the surface of a positive electrode and/or a negative electrode.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: September 8, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Vladimir Egorov, Woo-Cheol Shin, Denis Chernyshov, Makhmut Khasanov, Pavel Shatunov, Alexey Tereshchenko
  • Active material for a secondary battery, secondary battery including the active material, and method of preparing an active material
    Patent number: 9112213
    Abstract: An active material for a secondary battery, a secondary battery including the active material, and a method of preparing an active material, the active material including a silicon-based core; and an aluminum-based coating layer on at least a part of the silicon-based core.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: August 18, 2015
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Byung-Joo Chung, Eon-Mi Lee, Woo-Cheol Shin, Tae-Sik Kim, Jong-Ki Lee
  • Separator for rechargeable lithium battery and rechargeable lithium battery including same
    Patent number: 9105906
    Abstract: Disclosed is a separator having surface energy of about 45 mN to about 50 mN/m which can be prepared by radiating plasma on a polymer film under a current of from about 1800 mA to about 2000 mA and electric power of from about 2750 W to about 3000 W. Further disclosed is a rechargeable battery comprising the separator having a surface energy of about 45 mN to about 50 mN/m.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: August 11, 2015
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Tae-Hyun Bae, Woo-Cheol Shin, Sang-Il Han, Jung-Yi Yu, Myung-Hwan Jeong, Myung-Hoon Kim, Moon-Sung Kim, Sang-Geun Kim
  • ELECTROLYTE AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME
    Publication number: 20150207174
    Abstract: Disclosed are an electrolyte for a rechargeable lithium battery including a lithium salt, a non-aqueous organic solvent, and an additive, wherein the additive includes a compound represented by Chemical Formula 1, and rechargeable lithium battery including the same. The structure and definition of the above Chemical Formula 1 are the same as in the specification.
    Type: Application
    Filed: December 12, 2014
    Publication date: July 23, 2015
    Inventors: Min-Ju LEE, Soo-Jin KIM, Myung-Heui WOO, Myung-Hwan JEONG, Woo-Cheol SHIN
  • ELECTROLYTE ADDITIVE FOR LITHIUM BATTERY, ELECTROLYTE INCLUDING THE SAME, AND LITHIUM BATTERY INCLUDING THE ELECTROLYTE
    Publication number: 20150200422
    Abstract: The present invention relates to an electrolyte additive for a lithium battery, an electrolyte, and a lithium battery, the additive including a dithiocarbonyl-based compound represented by Formula 1: wherein, in Formula 1, R1 is a substituted or unsubstituted alicyclic or aromatic hydrocarbon group, and R2 is a substituted or unsubstituted aliphatic, alicyclic, or aromatic hydrocarbon group.
    Type: Application
    Filed: November 7, 2014
    Publication date: July 16, 2015
    Inventors: Jeong-Hye LEE, Woo-Cheol SHIN, Duck-Hyun KIM, Moon-Sung KIM, E-Rang CHO
  • RECHARGEABLE LITHIUM BATTERY
    Publication number: 20150125735
    Abstract: A rechargeable lithium battery includes: a negative electrode including a negative active material; a positive electrode; a separator interposed between the negative electrode and the positive electrode; and an electrolyte solution including an additive, wherein the negative active material includes a Si-based material, the Si-based material is included in an amount from about 1 to about 70 wt % based on total amount of the negative active material, and the additive includes fluoroethylene carbonate and a compound represented by the following Chemical Formula 1. In the above Chemical Formula 1, R1 to R3 are each independently a substituted or unsubstituted C2 to C5 alkyl group.
    Type: Application
    Filed: September 23, 2014
    Publication date: May 7, 2015
    Inventors: Tae-Hyun Bae, Woo-Cheol Shin, Sang-Hyun Eom, Myung-Hoon Kim, Seung-Tae Lee, Ae-Ran Kim, Dong-Myung Choi
  • RECHARGEABLE LITHIUM BATTERY
    Publication number: 20150118575
    Abstract: A rechargeable lithium battery including a negative electrode including a negative active material, a positive electrode, and an electrolyte solution including an additive, wherein the negative active material includes a Si-based material included in an amount of about 1 to about 70 wt % based on the total amount of the negative electrode, and the additive includes fluoroethylene carbonate and a compound represented by Chemical Formula 1. In the above Chemical Formula 1, R1 to R3 are each independently a substituted or unsubstituted C2 to C5 alkylene group.
    Type: Application
    Filed: September 4, 2014
    Publication date: April 30, 2015
    Inventors: Tae-Hyun Bae, Woo-Cheol Shin, Sang-Hyun Eom, Myung-Hoon Kim, Seung-Tae Lee, Ae-Ran Kim, Dong-Myung Choi, Ha-Rim Lee
  • Electrode for lithium secondary battery and lithium secondary battery including same
    Patent number: 9012074
    Abstract: An electrode for a lithium secondary battery, including a surface having surface roughness of about 800 nm to about 1000 nm, and a lithium secondary battery including the same. In one embodiment, the lithium secondary battery has improved cycle-life characteristics.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: April 21, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tae-Hyun Bae, Woo-Cheol Shin, Sang-Il Han, Myung-Hwan Jeong, Jung-Yi Yu, Min-Ju Lee, Sang-Geun Kim, Mi-Hyun Lee
  • Graphene electronic devices having multi-layered gate insulating layer
    Patent number: 8994079
    Abstract: A graphene electronic device includes a multi-layered gate insulating layer between a graphene channel layer and a gate electrode. The multi-layered gate insulating layer includes an organic insulating layer and an inorganic insulating layer on the organic insulating layer.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: March 31, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-jae Song, Byung-jin Cho, Sun-ae Seo, Woo-cheol Shin
  • ADDITIVE FOR ELECTROLYTE OF LITHIUM BATTERY, ORGANIC ELECTROLYTE SOLUTION COMPRISING THE SAME, AND LITHIUM BATTERY USING THE ORGANIC ELECTROLYTE SOLUTION
    Publication number: 20150086861
    Abstract: An additive for an electrolyte of a lithium battery including a disultone-based compound represented by Formula 1 below, an organic electrolyte solution including the additive, and a lithium battery including the organic electrolyte solution are provided: wherein, in Formula 1, A1, A2, A3, and A4 are each independently a substituted or unsubstituted C1-C5 alkylene group; a carbonyl group; or a sulfinyl group.
    Type: Application
    Filed: January 9, 2014
    Publication date: March 26, 2015
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Khasanov Makhmut, Sang-Hoon Kim, Ha-Rim Lee, Pavel Alexandrovich Shatunov, In-Haeng Cho, Woo-Cheol Shin