Patents by Inventor Ye Ri JANG

Ye Ri JANG 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).

  • Publication number: 20240186506
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery using a positive electrode containing the positive electrode active material. More particularly, the present invention relates to a positive electrode active material that is able to solve a problem of increased resistance according to an increase in Ni content by forming a charge transport channel in a lithium composite oxide and a lithium secondary battery using a positive electrode containing the positive electrode active material.
    Type: Application
    Filed: February 14, 2024
    Publication date: June 6, 2024
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Moon Ho CHOI, Jun Won SUH, Jin Kyeong YUN, Jung Han LEE, Mi Hye YUN, Seung Woo CHOI, Gwang Seok CHOE, Ye Ri JANG, Joong Ho BAE
  • Patent number: 11942635
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery using a positive electrode containing the positive electrode active material. More particularly, the present invention relates to a positive electrode active material that is able to solve a problem of increased resistance according to an increase in Ni content by forming a charge transport channel in a lithium composite oxide and a lithium secondary battery using a positive electrode containing the positive electrode active material.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: March 26, 2024
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Moon Ho Choi, Jun Won Suh, Jin Kyeong Yun, Jung Han Lee, Mi Hye Yun, Seung Woo Choi, Gwang Seok Choe, Ye Ri Jang, Joong Ho Bae
  • Publication number: 20230207803
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery using a positive electrode comprising the same, and more particularly, to a positive electrode active material which has improved electrochemical properties and improved stability by controlling a pore area and a pore shape of a lithium composite oxide included in the positive electrode active material by adjusting the proportions of ammonia and caustic soda, used in co-precipitation for synthesizing a precursor of the positive electrode active material, and a lithium secondary battery using a positive electrode containing the positive electrode active material.
    Type: Application
    Filed: March 2, 2023
    Publication date: June 29, 2023
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Hyung Joo NOH, Jin Kyeong YUN, Mi Hye YUN, Jae Woo JEON, Ju Chul KIM, Ye Ri JANG, Jin Oh SON, Jun Won SUH, Moon Ho CHOI
  • Publication number: 20210135212
    Abstract: The present invention relates to a lithium composite oxide capable of improving capacity and lifetime characteristics of a lithium secondary battery and a lithium secondary battery including the same. According to the present invention, since the atomic ratio of boron (B) and nickel (Ni) in the surface region of the lithium composite oxide including primary particles enabling lithium intercalation and deintercalation and secondary particles formed by aggregating the primary particles is in a specific range, the stability of the lithium composite oxide may be improved, and thus it is possible to improve the capacity and lifetime characteristics of the lithium secondary battery using the lithium composite oxide as a positive electrode active material.
    Type: Application
    Filed: September 29, 2020
    Publication date: May 6, 2021
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Moon Ho CHOI, Jun Won SUH, Jin Kyeong YUN, Jung Han LEE, Mi Hye YUN, Seung Woo CHOI, Gwang Seok CHOE, Ye Ri JANG, Joong Ho BAE
  • Publication number: 20210119205
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery using a positive electrode containing the positive electrode active material. More particularly, the present invention relates to a positive electrode active material that is able to solve a problem of increased resistance according to an increase in Ni content by forming a charge transport channel in a lithium composite oxide and a lithium secondary battery using a positive electrode containing the positive electrode active material.
    Type: Application
    Filed: September 28, 2020
    Publication date: April 22, 2021
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Moon Ho CHOI, Jun Won SUH, Jin Kyeong YUN, Jung Han LEE, Mi Hye YUN, Seung Woo CHOI, Gwang Seok CHOE, Ye Ri JANG, Joong Ho BAE