Patents by Inventor Soon-Sung Suh

Soon-Sung Suh 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: 10361428
    Abstract: An anode active material including a porous silicon having pores with a uniform average pore diameter, wherein the average pore diameter of the pores is in a range of about 50 nm to about 80 nm, a method of preparing the anode active material, and a lithium secondary battery including an anode including the anode active material.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: July 23, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-Ugk Kim, Seung-Uk Kwon, Jae-Hyuk Kim, Chang-Ui Jeong, Soon-Sung Suh, Hee-Young Chu, Duk-Hyoung Yoon
  • Patent number: 10074855
    Abstract: An electrode for a lithium secondary battery including a silicon-based alloy having an expansion coefficient of 10% or greater and an electrochemically inactive whisker, and a lithium secondary battery using the electrode for a lithium secondary battery.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: September 11, 2018
    Assignees: Samsung SDI Co., Ltd., SNU R&DB Foundation
    Inventors: Jae-Hyuk Kim, Young-Ugk Kim, Seung-Uk Kwon, Soon-Sung Suh, Hee-Young Chu, Duk-Hyoung Yoon, Chang-Ui Jeong, Yo-Han Park, Kyu-Hwan Oh, Seoung-Bum Son, Seul-Cham Kim, Chan-Soon Kang
  • Patent number: 9716264
    Abstract: An electrode for a lithium secondary battery includes a silicon-based alloy, and has a surface roughness of about 1 to about 10 ?m and a surface roughness deviation of 5 ?m or less. A method of manufacturing the electrode includes mixing an electrode composition, milling the composition, coating the milled composition on a current collector, and drying the milled composition. A lithium secondary battery includes the electrode.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: July 25, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Soon-Sung Suh, Sung-Hwan Moon, Yury Matulevich, Seung-Uk Kwon, Yo-Han Park, Chang-Ui Jeong, Jae-Hyuk Kim, Chun-Gyoo Lee, Jong-Seo Choi
  • Patent number: 9634325
    Abstract: A negative active material, a negative electrode, a lithium battery including the negative active material, and a method of manufacturing the negative active material, the negative electrode, and the lithium battery. The negative active material includes a silicon-based alloy including Si, Ti, Ni, and Fe components. The silicon-based alloy includes a Ti2Ni phase as an inactive phase and active silicon having a lower content than that of typical silicon-based alloys. The negative active material may improve discharge capacity and lifetime characteristics of lithium batteries.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: April 25, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seung-Uk Kwon, Jae-Hyuk Kim, Soon-Sung Suh, Hee-Young Chu, Chang-Ui Jeong, Yo-Han Park, Yury Matulevich, Chun-Gyoo Lee
  • Patent number: 9406933
    Abstract: A negative active material, a negative electrode and a lithium battery including the same, and a method of manufacturing the negative active material are disclosed. The negative active material includes a silicon-based alloy including Si, Al, and Cu. Since the silicon-based alloy includes AlCu and Al2Cu as inactive phases, the lifespan of a lithium battery may be increased.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: August 2, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chang-Ui Jeong, Young-Ugk Kim, Jae-Hyuk Kim, Yo-Han Park, Seung-Uk Kwon, Soon-Sung Suh, Duk-Hyoung Yoon
  • Patent number: 9406937
    Abstract: A binder composition for a rechargeable lithium battery includes a semi-interpenetrating polymer network (semi-IPN) including a copolymer including a repeating unit represented by the following Chemical Formula 1 and a repeating unit represented by the following Chemical Formula 2 and polyacrylamide, and polyalkylene glycol. In Chemical Formula 1, R1 and R2 are the same or different and are independently selected from hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, and R3 and R4 are an alkali metal. In Chemical Formula 2, R5 to R8 are the same or different, and are independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, or a substituted or unsubstituted C1 to C30 alkoxy group.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: August 2, 2016
    Assignee: AEKYUNG CHEMICAL CO., LTD.
    Inventors: Byung-Joo Chung, Eon-Mi Lee, Seung-Uk Kwon, Jae-Hyuk Kim, Soon-Sung Suh, Chang-Ui Jeong, Ha-Na Yoo, Nam-Seon Kim, Yang-Soo Kim, Kwang-Sik Choi
  • Patent number: 9368797
    Abstract: A binder composition for a rechargeable lithium battery includes a semi-interpenetrating polymer network (semi-IPN) including a copolymer including a repeating unit represented by the following Chemical Formula 1 and a repeating unit represented by the following Chemical Formula 2, and polyacrylamide. In Chemical Formula 1, R1 and R2 are the same or different and are independently selected from hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, and R3 and R4 are an alkali metal. In Chemical Formula 2, R5 to R8 are the same or different, and are independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, or a substituted or unsubstituted C1 to C30 alkoxy group.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: June 14, 2016
    Assignees: SAMSUNG SDI CO., LTD., AEKYUNG CHEMICAL CO., LTD.
    Inventors: Byung-Joo Chung, Eon-Mi Lee, Seung-Uk Kwon, Jae-Hyuk Kim, Soon-Sung Suh, Chang-Ui Jeong, Ha-Na Yoo, Nam-Seon Kim, Yang-Soo Kim, Kwang-Sik Choi
  • Patent number: 9356287
    Abstract: A negative active material, a lithium battery including the negative active material, and a method of preparing the negative active material. The negative active material includes a silicon-based alloy including Si, Al, and Fe. The silicon-based alloy includes an active phase of silicon nanoparticles and an inactive phase of Si3Al3Fe2 and Si2Fe in a ratios suitable to improve the lifespan of the lithium battery.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: May 31, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seung-Uk Kwon, Young-Ugk Kim, Jae-Hyuk Kim, Yury Matulevich, Yo-Han Park, Chang-Ui Jeong, Soon-Sung Suh, Hee-Young Chu, Duk-Hyoung Yoon
  • Patent number: 9306216
    Abstract: A negative active material for a rechargeable lithium battery includes a Si—Al—Fe alloy represented by Formula 1. The Si—Al—Fe alloy includes a Si phase and an alloy phase, and the alloy phase includes Si, Al, and Fe in a ratio of atomic percentages of about 3:3:2: xSi-yAl-zFe??Formula 1 wherein 50 at %?x?90 at %, 5 at %?y?30 at %, 5 at %?z?30 at %, and x+y+z=100 at %.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: April 5, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sung-Hwan Moon, Jae-Hyuk Kim, Seung-Uk Kwon, Chang-Ui Jeong, Yo-Han Park, Soon-Sung Suh, Chun-Gyoo Lee, Jong-Seo Choi, Yury Matulevich
  • Patent number: 9252428
    Abstract: Disclosed is a negative electrode for a rechargeable lithium battery that includes a current collector and a negative active material layer on the current collector, the negative active material layer having an active mass density in a range of about 1.6 g/cc to about 2.1 g/cc and including graphite and a pore-forming agent.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: February 2, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jae-Myung Kim, Kyu-Nam Joo, Soon-Sung Suh, Su-Kyung Lee, Deok-Hyun Kim, Yeon-Gap Kim
  • Patent number: 9178210
    Abstract: A negative active material for a lithium battery with an improved cycle characteristic and capacity retention rate, and the negative active material comprises a plurality of particles comprising a plurality of first particles comprising Si, Ti, and Ni; and composite particles comprising a plurality of second particles in which at least one element selected from the group consisting of Cu, Fe, Ni, Au, Ag, Pd, Cr, Mn, Ti, B, and P is partially or completely deposited on surface(s) of other of first particles, a method of preparing the negative active material, and a lithium battery including a negative electrode including the negative active material.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: November 3, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yury Matulevich, Sung-Hwan Moon, Jong-Seo Choi, Jae-Hyuk Kim, Chun-Gyoo Lee, Seung-Uk Kwon, Yo-Han Park, Soon-Sung Suh, Chang-Ui Jeong
  • Patent number: 9172093
    Abstract: In an aspect, an electrode active material for a lithium secondary battery, the electrode active material including a silicon-based alloy and a coating film containing a polymer that includes a 3,4-ethylenedioxythiophene repeating unit and an oxyalkylene repeating unit, coated on the surface of the silicon-based alloy are provided.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: October 27, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hee-Young Chu, Young-Ugk Kim, Seung-Uk Kwon, Jae-Hyuk Kim, Soon-Sung Suh, Duk-Hyoung Yoon, Chang-Ui Jeong, Yo-Han Park, Yury Matulevich
  • Publication number: 20150295235
    Abstract: An anode active material including a porous silicon having pores with a uniform average pore diameter, wherein the average pore diameter of the pores is in a range of about 50 nm to about 80 nm, a method of preparing the anode active material, and a lithium secondary battery including an anode including the anode active material.
    Type: Application
    Filed: February 17, 2015
    Publication date: October 15, 2015
    Inventors: Young-Ugk Kim, Seung-Uk Kwon, Jae-Hyuk Kim, Chang-Ui Jeong, Soon-Sung Suh, Hee-Young Chu, Duk-Hyoung Yoon
  • Patent number: 9123955
    Abstract: A negative active material having controlled particle size distribution of silicon nanoparticles in a silicon-based alloy, a lithium battery including the negative active material, and a method of manufacturing the negative active material are disclosed. The negative active material may improve capacity and lifespan characteristics by inhibiting (or reducing) volumetric expansion of the silicon-based alloy. The negative active material may include a silicon-based alloy including: a silicon alloy-based matrix; and silicon nanoparticles distributed in the silicon alloy-based matrix, wherein a particle size distribution of the silicon nanoparticles satisfies D10?10 nm and D90?75 nm.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: September 1, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seung-Uk Kwon, Sung-Hwan Moon, Chun-Gyoo Lee, Jae-Hyuk Kim, Soon-Sung Suh, Chang-Ui Jeong, Yo-Han Park, Yury Matulevich, Jong-Seo Choi
  • Patent number: 9123952
    Abstract: In an aspect, a negative electrode active material, a method of preparing the same, and a lithium secondary battery having the negative electrode including the negative electrode active material is provided. The negative electrode active material may include amorphous silicon oxide, crystalline silicon, carbon, metal silicide, spherical particles and whiskers.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: September 1, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Deok-Hyun Kim, Jae-Myung Kim, Kyu-Nam Joo, Soon-Sung Suh, Yeon-Gap Kim
  • Patent number: 9118074
    Abstract: An anode active material, a lithium battery including the anode active material, and a method of preparing the anode active material are provided. The anode active material includes an alloy containing silicon (Si), titanium (Ti) and nickel (Ni) elements, wherein the alloy includes a Si phase and an alloy phase, and a peak intensity ratio (I(111)/I(220)) of Si(111) to Si(220) plane in a X-ray diffraction spectrum of the Si phase is from about 1.0 to about 1.5.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: August 25, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jae-Hyuk Kim, Young-Ugk Kim, Seung-Uk Kwon, Soon-Sung Suh, Hee-Young Chu, Duk-Hyoung Yoon, Chang-Ui Jeong, Yo-Han Park, Yury Matulevich
  • Publication number: 20150214544
    Abstract: A negative active material, a negative electrode, a lithium battery including the negative active material, and a method of manufacturing the negative active material, the negative electrode, and the lithium battery. The negative active material includes a silicon-based alloy including Si, Ti, Ni, and Fe components. The silicon-based alloy includes a Ti2Ni phase as an inactive phase and active silicon having a lower content than that of typical silicon-based alloys. The negative active material may improve discharge capacity and lifetime characteristics of lithium batteries.
    Type: Application
    Filed: November 26, 2014
    Publication date: July 30, 2015
    Inventors: Seung-Uk Kwon, Jae-Hyuk Kim, Soon-Sung Suh, Hee-Young Chu, Chang-Ui Jeong, Yo-Han Park, Yury Matulevich, Chun-Gyoo Lee
  • Publication number: 20150056509
    Abstract: A negative active material, a negative electrode and a lithium battery including the same, and a method of manufacturing the negative active material are disclosed. The negative active material includes a silicon-based alloy including Si, Al, and Cu. Since the silicon-based alloy includes AlCu and Al2Cu as inactive phases, the lifespan of a lithium battery may be increased.
    Type: Application
    Filed: June 25, 2014
    Publication date: February 26, 2015
    Inventors: Chang-Ui Jeong, Young-Ugk Kim, Jae-Hyuk Kim, Yo-Han Park, Seung-Uk Kwon, Soon-Sung Suh, Duk-Hyoung Yoon
  • Publication number: 20150021516
    Abstract: A negative active material, a lithium battery including the negative active material, and a method of preparing the negative active material. The negative active material includes a silicon-based alloy including Si, Al, and Fe. The silicon-based alloy includes an active phase of silicon nanoparticles and an inactive phase of Si3Al3Fe2 and Si2Fe in a ratios suitable to improve the lifespan of the lithium battery.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 22, 2015
    Inventors: Seung-Uk Kwon, Young-Ugk Kim, Jae-Hyuk Kim, Yury Matulevich, Yo-Han Park, Chang-Ui Jeong, Soon-Sung Suh, Hee-Young Chu, Duk-Hyoung Yoon
  • Publication number: 20150008374
    Abstract: An electrode for a lithium secondary battery including a silicon-based alloy having an expansion coefficient of 10% or greater and an electrochemically inactive whisker, and a lithium secondary battery using the electrode for a lithium secondary battery.
    Type: Application
    Filed: May 27, 2014
    Publication date: January 8, 2015
    Applicants: SAMSUNG SDI CO., LTD., SNU R&DB Foundation
    Inventors: Jae-Hyuk Kim, Young-Ugk Kim, Seung-Uk Kwon, Soon-Sung Suh, Hee-Young Chu, Duk-Hyoung Yoon, Chang-Ui Jeong, Yo-Han Park, Kyu-Hwan Oh, Seoung-Bum Son, Seul-Cham Kim, Chan-Soon Kang