Patents by Inventor Jae-Bum Choo

Jae-Bum Choo 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-electrode active material for rechargeable lithium battery
    Patent number: 9413000
    Abstract: The present invention relates to a method for preparing a negative-electrode active material for rechargeable lithium battery, wherein the negative-electrode active material comprises a core comprising material capable of doping and dedoping lithium; and, a carbon layer formed on the surface of the core, wherein the carbon layer has a three dimensional porous structure comprising nanopores regularly ordered on the carbon layer with a pore wall of specific thickness placed therebetween. In some embodiments, the method comprises modifying a material capable of doping and dedoping lithium with an organic functional group, mixing the modified material with an inorganic oxide, heating the mixture, and removing the inorganic oxide to form the negative-electrode active material.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: August 9, 2016
    Assignees: LG Chem, Ltd., UNIST (Ulsan National Institute of Science and Technology)
    Inventors: Jaephil Cho, Jae-Bum Choo, Byung-Hee Han, Hyun-Jung Kim, Ki-Tae Kim, Je-Young Kim
  • NEGATIVE-ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY
    Publication number: 20140110634
    Abstract: The present invention relates to negative-electrode active material for rechargeable lithium battery comprising: a core comprising material capable of doping and dedoping lithium; and, a carbon layer formed on the surface of the core, wherein the carbon layer has a three dimensional porous structure comprising nanopores regularly ordered on the carbon layer with a pore wall of specific thickness placed therebetween.
    Type: Application
    Filed: December 31, 2013
    Publication date: April 24, 2014
    Applicants: UNIST ACADEMY-INDUSTRY RESEARCH CORPORATION, LG CHEM, LTD.
    Inventors: Jaephil Cho, Jae-Bum Choo, Byung-Hee Han, Hyun-Jung Kim, Ki-Tae Kim, Je-Young Kim
  • Negative-electrode active material for rechargeable lithium battery
    Patent number: 8669008
    Abstract: The present invention relates to negative-electrode active material for rechargeable lithium battery comprising: a core comprising material capable of doping and dedoping lithium; and, a carbon layer formed on the surface of the core, wherein the carbon layer has a three dimensional porous structure comprising nanopores regularly ordered on the carbon layer with a pore wall of specific thickness placed therebetween.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: March 11, 2014
    Assignees: LG Chem, Ltd., UNIST Academy-Industry Research Corporation
    Inventors: Jaephil Cho, Jae-Bum Choo, Byung-Hee Han, Hyun-Jung Kim, Ki-Tae Kim, Je-Young Kim
  • NEGATIVE-ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY
    Publication number: 20120077087
    Abstract: The present invention relates to negative-electrode active material for rechargeable lithium battery comprising: a core comprising material capable of doping and dedoping lithium; and, a carbon layer formed on the surface of the core, wherein the carbon layer has a three dimensional porous structure comprising nanopores regularly ordered on the carbon layer with a pore wall of specific thickness placed therebetween.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 29, 2012
    Applicants: UNIST ACADEMY-INDUSTRY RESEARCH CORPORATION, LG CHEM, LTD.
    Inventors: Jaephil Cho, Jae-Bum Choo, Byung-Hee Han, Hyun-Jung Kim, Ki-Tae Kim, Je-Young Kim