中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

8 records (took 0.013 seconds)

    Cathode active material for lithium secondary battery
    2.
    发明授权
    Cathode active material for lithium secondary battery 有权

    公开(公告)号：US10529985B2

    公开(公告)日：2020-01-07

    申请号：US16058594

    申请日：2018-08-08

    Applicant: LG Chem, Ltd.

    Inventor： Hyun Jin Oh ,  Ho Suk Shin ,  Jin Hyung Lim ,  Dong Hun Lee ,  Joo Hong Jin ,  Wang Mo Jung

    IPC: H01M4/131 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/485 ,  H01M10/052 ,  H01M4/02

    Abstract: Provided are a method of preparing a cathode active material including coating a surface of a lithium transition metal oxide with a lithium boron oxide by dry mixing the lithium transition metal oxide and a boron-containing compound and performing a heat treatment, and a cathode active material prepared thereby.A method of preparing a cathode active material according to an embodiment of the present invention may easily transform lithium impurities present in a lithium transition metal oxide into a structurally stable lithium boron oxide by performing a heat treatment near the melting point of a boron-containing compound.Also, a coating layer may be formed in which the lithium boron oxide is uniformly coated in an amount proportional to the used amount of the boron-containing compound even at a low heat treatment temperature.

    MANUFACTURING METHOD OF CATHODE ACTIVE MATERIAL, AND CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY MANUFACTURED THEREBY
    4.
    发明申请
    MANUFACTURING METHOD OF CATHODE ACTIVE MATERIAL, AND CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY MANUFACTURED THEREBY 审中-公开
    阴极活性材料的制造方法和制造的锂二次电池的阴极活性材料

    公开(公告)号：US20160013476A1

    公开(公告)日：2016-01-14

    申请号：US14437079

    申请日：2014-10-29

    Applicant: LG CHEM, LTD.

    Inventor： Hyun Jin Oh ,  Ho Suk Shin ,  Jin Hyung Lim ,  Dong Hun Lee ,  Joo Hong Jin ,  Wang Mo Jung

    IPC: H01M4/36 ,  H01M4/525 ,  H01M4/04 ,  H01M4/485 ,  H01M4/1391 ,  H01M4/131 ,  H01M4/505

    CPC classification number: H01M4/366 ,  C01P2006/40 ,  H01M4/0402 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/052 ,  H01M2004/028

    Abstract: Provided are a method of preparing a cathode active material including coating a surface of a lithium transition metal oxide with a lithium boron oxide by dry mixing the lithium transition metal oxide and a boron-containing compound and performing a heat treatment, and a cathode active material prepared thereby.A method of preparing a cathode active material according to an embodiment of the present invention may easily transform lithium impurities present in a lithium transition metal oxide into a structurally stable lithium boron oxide by performing a heat treatment near the melting point of a boron-containing compound.Also, a coating layer may be formed in which the lithium boron oxide is uniformly coated in an amount proportional to the used amount of the boron-containing compound even at a low heat treatment temperature.

    Abstract translation: 提供一种正极活性物质的制备方法，其包括通过干式混合锂过渡金属氧化物和含硼化合物并进行热处理而用锂硼氧化物涂覆锂过渡金属氧化物的表面，并进行热处理 由此准备。 根据本发明实施方案的制备阴极活性材料的方法可以通过在含硼化合物的熔点附近进行热处理，容易地将存在于锂过渡金属氧化物中的锂杂质转化为结构稳定的锂硼氧化物 。 此外，即使在低热处理温度下也可以形成涂覆层，其中锂硼氧化物以与含硼化合物的使用量成比例的量均匀地涂覆。

Patent Agency Ranking