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    POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY INCLUDING SAME
    2.
    发明公开
    POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY INCLUDING SAME 审中-公开

    公开(公告)号：EP4258388A1

    公开(公告)日：2023-10-11

    申请号：EP21901032.9

    申请日：2021-12-02

    申请人： ECOPRO BM CO., LTD.

    发明人： CHOI, Moon Ho ,  CHOI, Seung Hyun ,  LIM, Ra Na ,  YANG, A Reum

    IPC分类号： H01M4/525 ,  H01M4/505 ,  H01M4/36 ,  C01G53/00 ,  H01M10/052

    摘要： A positive electrode active material for a secondary battery according to an embodiment of the present invention comprises a lithium composite oxide represented by chemical formula 1 and containing a layer-structured lithium excess oxide, wherein the lithium composite oxide comprises a secondary particle; the secondary particle comprises at least one primary particle; the primary particle comprises at least one crystallite; at least one selected from the secondary particle, the primary particle, and the crystallite comprises a core and a shell occupying at least a portion of the surface of the core; and when the number of moles of at least one element having an oxidation number, selected from among nickel (Ni), cobalt (Co) and manganese (Mn) relative to the total number of moles of M1 and M2 in chemical formula 1 is M p+ /M, the M p+ /M in the core differs from that in the shell in the secondary particle: [Chemical formula 1] rLi 2 M1O 3 ·(1-r)Li a M2O 2 .

    POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY INCLUDING SAME
    3.
    发明公开
    POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY INCLUDING SAME 审中-公开

    公开(公告)号：EP4258387A1

    公开(公告)日：2023-10-11

    申请号：EP21901026.1

    申请日：2021-12-02

    申请人： ECOPRO BM CO., LTD.

    发明人： CHOI, Moon Ho ,  CHOI, Seung Hyun ,  LIM, Ra Na ,  YANG, A Reum

    IPC分类号： H01M4/525 ,  H01M4/505 ,  H01M4/36 ,  C01G53/00 ,  H01M10/052

    摘要： A positive electrode active material for a secondary battery according to an embodiment of the present invention comprises a lithium composite oxide represented by chemical formula 1 below and containing a layer-structured lithium excess oxide, wherein the lithium composite oxide comprises a secondary particle; the secondary particle comprises at least one primary particle; the primary particle comprises at least one crystallite; at least any one selected from the secondary particle, the primary particle, and the crystallite comprises a core and a shell occupying at least a portion of the surface of the core; and when the crystal structure belonging to space group C2/m is designated as [C2/m], the crystal structure belonging to space group R-3m is designated as [R-3m], and the ratio of the crystal structure belonging to space group C2/m versus the crystal structure belonging to space group R-3m is designated as [C2/m]/[R-3m], the [C2/m]/[R-3m] of the core differs from that of the shell in the secondary particle: [chemical formula 1] rLi 2 M1O 3 ·(1-r)Li a M2O 2

    CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING SAME
    6.
    发明公开
    CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING SAME 审中-公开

    公开(公告)号：EP4216311A1

    公开(公告)日：2023-07-26

    申请号：EP21900845.5

    申请日：2021-11-08

    申请人： ECOPRO BM CO., LTD.

    发明人： LIM, Ra Na ,  YANG, A Reum ,  KIM, Gyun Joong ,  LIM, Kyung Min ,  KIM, Hye Bin

    IPC分类号： H01M4/525 ,  H01M4/505 ,  H01M4/36 ,  C01G53/00 ,  H01M10/052

    摘要： The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material which includes a lithium-rich lithium manganese-based oxide containing at least lithium, nickel, manganese and molybdenum, wherein the lithium manganese-based oxide includes at least one primary particle and a molybdenum-containing flux is used to improve the crystal growth of the primary particle, resulting in mitigation and/or prevention of a decrease in stability caused by lithium and manganese present in excessive amounts in the lithium manganese-based oxide, and a lithium secondary battery including the same.

    CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, PREPARATION METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY COMPRISING SAME
    9.
    发明公开
    CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, PREPARATION METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY COMPRISING SAME 审中-公开

    公开(公告)号：EP4258386A1

    公开(公告)日：2023-10-11

    申请号：EP21901024.6

    申请日：2021-12-02

    申请人： ECOPRO BM CO., LTD.

    发明人： CHOI, Moon Ho ,  CHOI, Seung Hyun ,  LIM, Ra Na ,  YANG, A Reum

    IPC分类号： H01M4/525 ,  H01M4/505 ,  H01M4/36 ,  C01G53/00 ,  H01M10/052

    摘要： A cathode active material for a lithium secondary battery, according to an embodiment of the present invention, comprises a lithium composite oxide comprising a lithium-rich layered oxide, which is represented by the following chemical formula 1, wherein the lithium composite oxide comprises secondary particles, each of the secondary particles comprises one or more primary particles, each of the primary particles comprises one or more crystallites, at least any one selected from among the secondary particles, the primary particles and the crystallites comprises a core and a shell, which occupies a part of the surface of the core, and, when the mole of at least any one element selected from among nickel (Ni), cobalt (Co) and manganese (Mn) to the total mole of M1 and M2 in the following chemical formula 1 are NCM/M, the NCM/M of the shell and the core in the secondary particles are different from each other. [Chemical formula 1] rLi 2 M1O 3 ·(1-r)Li a M2O 2