Patents by Inventor Na-Ri Seo

Na-Ri Seo 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: 11108044
    Abstract: A rechargeable lithium battery includes an electrolyte, a negative electrode, and a positive electrode. The negative electrode includes a negative active material layer on a negative current collector, and includes a carbon-based negative active material. The negative electrode having a Degree of Divergence (DD) value of about 19 to about 60. The positive electrode includes a positive active material layer and a positive current collector, and includes a positive active material and a porous structured additive. The content of the porous structured additive is about 0.01 wt % to about 2 wt % based on 100 wt % of the positive active material layer.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: August 31, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Junkyu Lee, Bokhyun Ka, Na-Ri Seo, Kyeuyoon Sheem, Jinhyon Lee, Eun-Hyung Choi
  • Publication number: 20180123131
    Abstract: A rechargeable lithium battery includes an electrolyte, a negative electrode, and a positive electrode. The negative electrode includes a negative active material layer on a negative current collector, and includes a carbon-based negative active material. The negative electrode having a Degree of Divergence (DD) value of about 19 to about 60. The positive electrode includes a positive active material layer and a positive current collector, and includes a positive active material and a porous structured additive. The content of the porous structured additive is about 0.01 wt % to about 2 wt % based on 100 wt % of the positive active material layer.
    Type: Application
    Filed: November 1, 2017
    Publication date: May 3, 2018
    Inventors: Junkyu LEE, Bokhyun KA, Na-Ri SEO, Kyeuyoon SHEEM, Jinhyon LEE, Eun-Hyung CHOI
  • Patent number: 9187622
    Abstract: In one aspect, a composite binder for a battery, including an inorganic particle; a binder polymer; and an organic-inorganic coupling agent, a negative electrode including the composite binder, and a lithium battery including the negative electrode is provided.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: November 17, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Myoung-Sun Kim, Jun-Kyu Cha, Na-Ri Seo, Young-Su Kim, Ki-Jun Kim, Kwi-Seok Choi
  • Publication number: 20140050975
    Abstract: Disclosed is a negative active material that includes active material primary particles; a conductive material; and a composite binder.
    Type: Application
    Filed: August 14, 2013
    Publication date: February 20, 2014
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jun-Kyu Cha, Na-Ri Seo, Myoung-Sun Kim, Dong-Ho Son, Kwi-Seok Choi
  • Publication number: 20130252110
    Abstract: A negative active material includes a silicon-based particle and a crystalline carbonaceous material, the crystalline carbonaceous material including a graphite particle and a carbonaceous nano-sheet.
    Type: Application
    Filed: February 5, 2013
    Publication date: September 26, 2013
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Sam-Jin PARK, Ki-Jun KIM, Na-Ri SEO, Ihn KIM, Dong-Ho SON, Myoung-Sun KIM, Young-Su KIM
  • Publication number: 20120177989
    Abstract: A negative active material composition includes a negative active material, a binder, and a solvent, in which the solvent includes an aqueous solvent and an organic solvent. A method of preparing a negative electrode plate uses the negative active material composition. A lithium battery is manufactured using the negative active material composition, and has good lifetime characteristics due to the formation of pores in the electrode plate.
    Type: Application
    Filed: May 16, 2011
    Publication date: July 12, 2012
    Inventors: Dong-Ho Son, Ki-Jun Kim, Ihn Kim, Young-Su Kim, Sam-Jin Park, Na-Ri Seo, Myoung-Sun Kim
  • Publication number: 20110305944
    Abstract: An electrode assembly according to an exemplary embodiment of the present invention comprises: a first electrode which includes a first electrode current collector and a first electrode active material layer formed on the first electrode current collector; a second electrode which includes a second electrode current collector and a second electrode active material layer formed on the second electrode current collector; and a separator disposed between the first electrode and the second electrode. A supporting portion is formed of a groove or a protrusion at an edge of the first electrode current collector, and a combination portion is combined with the supporting portion on the first electrode active material layer.
    Type: Application
    Filed: November 23, 2010
    Publication date: December 15, 2011
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Na-Ri Seo, Ki-Jun Kim, Ihn Kim, Sam-Jin Park, Seung-Hun Han, Hye-Sun Jeong
  • Publication number: 20090108236
    Abstract: A composition for a plasma display device includes inorganic material particles, a composite of an acidic dispersant and a basic dispersant, a binder, and a solvent.
    Type: Application
    Filed: September 15, 2008
    Publication date: April 30, 2009
    Inventors: Hui-Young Ku, Ki-Jun Kim, Yoo-Jung Lee, Na-Ri Seo, Un-Gyu Paik, Chae-Woong Cho