Patents by Inventor Da-Woon HAN

Da-Woon HAN 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).

  • Negative active material for rechargeable lithium battery, method of preparing same, and rechargeable lithium battery
    Patent number: 9005815
    Abstract: A negative active material for a rechargeable lithium battery, a method of manufacturing the same, and a rechargeable lithium battery including the negative active material. The negative active material includes carbon particles having interplanar spacing (d002) ranging from about 0.34 nm to about 0.50 nm at a 002 plane, measured by X-ray diffraction using CuK?, and nitrogen on the surface of the carbon particles.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: April 14, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kyeu-Yoon Sheem, Bok-Hyun Ka, Da-Woon Han
  • Positive electrode for rechargeable lithium battery with high voltage and rechargeable lithium battery including same
    Patent number: 8852809
    Abstract: A positive electrode for a rechargeable lithium battery capable of providing a high voltage and a high voltage rechargeable lithium battery including the same, wherein the positive electrode includes a positive active material and a capacitor-reactive carbonaceous material having a specific surface area at or between 10 m2/g and 100 m2/g.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: October 7, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kyeu-Yoon Sheem, Bok-Hyun Ka, Sumihito Ishida, Da-Woon Han, Eui-Hwan Song
  • Positive electrode for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same
    Patent number: 8771878
    Abstract: A positive electrode for a rechargeable lithium battery including a current collector and a positive active material layer disposed on the current collector, a method of manufacturing the positive electrode, and a rechargeable lithium battery including the positive electrode. Here, the positive active material layer includes a positive active material and a coating layer on the surface of the positive active material, wherein the coating layer is formed of a coating layer composition including carbon nano particles, polyvinylpyrrolidone, and polyvinylidene fluoride.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: July 8, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Da-Woon Han, Kyeu-Yoon Sheem, Eui-Hwan Song
  • POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY
    Publication number: 20130288111
    Abstract: Disclosed is a positive electrode according to one embodiment of the present invention that includes a current collector and a positive active material layer on the current collector, wherein the positive active material layer includes a positive active material and activated carbon coated with a fibrous carbon material.
    Type: Application
    Filed: September 11, 2012
    Publication date: October 31, 2013
    Inventors: Jung-Woo An, Kyeu-Yoon Sheem, Da-Woon Han
  • POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME
    Publication number: 20130029220
    Abstract: A positive electrode for a rechargeable lithium battery including a current collector and a positive active material layer disposed on the current collector, a method of manufacturing the positive electrode, and a rechargeable lithium battery including the positive electrode. Here, the positive active material layer includes a positive active material and a coating layer on the surface of the positive active material, wherein the coating layer is formed of a coating layer composition including carbon nano particles, polyvinylpyrrolidone, and polyvinylidene fluoride.
    Type: Application
    Filed: May 15, 2012
    Publication date: January 31, 2013
    Inventors: Da-Woon Han, Kyeu-Yoon Sheem, Eui-Hwan Song
  • Negative electrode for a rechargeable lithium battery and rechargeable lithium battery including the same
    Publication number: 20120045695
    Abstract: A negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, the negative electrode including a negative active material; and a lithium ion adsorbent having a specific surface area of about 10 m2/g to about 100 m2/g.
    Type: Application
    Filed: March 4, 2011
    Publication date: February 23, 2012
    Inventors: Kyeu-Yoon Sheem, Bok-Hyun Ka, Sumihito Ishida, Da-Woon Han
  • POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY WITH HIGH VOLTAGE AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME
    Publication number: 20120003534
    Abstract: A positive electrode for a rechargeable lithium battery capable of providing a high voltage and a high voltage rechargeable lithium battery including the same, wherein the positive electrode includes a positive active material and a capacitor-reactive carbonaceous material having a specific surface area at or between 10 m2/g and 100 m2/g.
    Type: Application
    Filed: April 26, 2011
    Publication date: January 5, 2012
    Inventors: Kyeu-Yoon Sheem, Bok-Hyun Ka, Sumihito Ishida, Da-Woon Han, Eui-Hwan Song
  • NEGATIVE ELECTRODE FOR SECONDARY LITHIUM BATTERY, AND SECONDARY LITHIUM BATTERY
    Publication number: 20110294014
    Abstract: Disclosed is a negative electrode for a secondary lithium battery and a secondary lithium battery including the same, wherein the negative electrode includes a current collector and a negative active material layer formed on the current collector, and the negative active material layer includes an additive including a core including a metal oxide and a metal coating layer formed on the core, and a negative active material.
    Type: Application
    Filed: November 16, 2010
    Publication date: December 1, 2011
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Bok-Hyun KA, Kyeu-Yoon Sheem, Da-Woon Han
  • NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY
    Publication number: 20110274979
    Abstract: A negative active material for a rechargeable lithium battery, a method of manufacturing the same, and a rechargeable lithium battery including the negative active material. The negative active material includes carbon particles having interplanar spacing (d002) ranging from about 0.34 nm to about 0.50 nm at a 002 plane, measured by X-ray diffraction using CuK?, and nitrogen on the surface of the carbon particles.
    Type: Application
    Filed: November 17, 2010
    Publication date: November 10, 2011
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Kyeu-Yoon SHEEM, Bok-Hyun KA, Da-Woon HAN