Patents by Inventor Soonsung SEO

Soonsung 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).

  • Negative active material having a silicon alloy core and a shell including a metal oxide, negative electrode and lithium secondary battery including the same, and method of preparing the negative active material
    Patent number: 10930921
    Abstract: Provided are a negative active material, an anode and a lithium secondary battery including the same, and a method of preparing the negative active material. The negative active material includes a silicon alloy core including silicon, iron, and manganese, and a shell including a metal oxide on the silicon alloy core, the metal oxide including one or more of titanium, zirconium, aluminum, cobalt, or lithium. An amount of the metal oxide may be from greater than 0 wt % to less than about 12 wt % based on a total weight of the negative active material.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: February 23, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jaehyuk Kim, Soonsung Seo, Hana Yoo, Heeyoung Chu, Deokhyun Kim, Yungu Cho
  • NEGATIVE ACTIVE MATERIAL, NEGATIVE ELECTRODE AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME, AND METHOD OF PREPARING THE NEGATIVE ACTIVE MATERIAL
    Publication number: 20180069231
    Abstract: Provided are a negative active material, an anode and a lithium secondary battery including the same, and a method of preparing the negative active material. The negative active material includes a silicon alloy core including silicon, iron, and manganese, and a shell including a metal oxide on the silicon alloy core, the metal oxide including one or more of titanium, zirconium, aluminum, cobalt, or lithium. An amount of the metal oxide may be from greater than 0 wt % to less than about 12 wt % based on a total weight of the negative active material.
    Type: Application
    Filed: September 6, 2017
    Publication date: March 8, 2018
    Inventors: Jaehyuk KIM, Soonsung SEO, Hana YOO, Heeyoung CHU, Deokhyun KIM, Yungu CHO