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    SiO POWDER PRODUCTION METHOD AND SPHERICAL PARTICULATE SiO POWDER
    1.
    发明申请
    SiO POWDER PRODUCTION METHOD AND SPHERICAL PARTICULATE SiO POWDER 有权

    公开(公告)号：US20210309528A1

    公开(公告)日：2021-10-07

    申请号：US17267767

    申请日：2019-08-26

    Applicant: OSAKA TITANIUM TECHNOLOGIES CO.,LTD..

    Inventor： Kohki TAKESHITA ,  Yusuke KASHITANI ,  Takehisa FUJITA ,  Shingo KIZAKI

    IPC: C01B33/18 ,  C23C16/01 ,  H01M4/48 ,  C23C16/56 ,  C23C16/40

    Abstract: [Problem to be solved] To produce an SiO powder having a rounded spherical particulate shape and a small particle diameter; and further having a low degree of impurity contamination, efficiently and economically.
    [Solution] A mixture of Si and SiO2 as an SiO gas generation raw material 9 is loaded into a crucible 2. The mixture in the crucible 2 is heated under a reduced pressure so as to generate SiO gas. The generated SiO gas is accumulated on a deposition base 5 rotating on the crucible 2. When SiO deposit 10 accumulated on the deposition base 5 is scraped off with a blade 7, a tip of the blade 7 is separated from a surface of the deposition base 5, and in a state in which a portion of the SiO deposit 10 accumulated on the deposition base 5 is left on the deposition base 5, the remaining SiO deposit 10 is scraped off by the blade 7 and collected as an SiO powder 11.

    SiO powder production method and spherical particulate SiO powder
    6.
    发明授权
    SiO powder production method and spherical particulate SiO powder 有权

    公开(公告)号：US12195345B2

    公开(公告)日：2025-01-14

    申请号：US17267767

    申请日：2019-08-26

    Applicant: OSAKA TITANIUM TECHNOLOGIES CO.,LTD..

    Inventor： Kohki Takeshita ,  Yusuke Kashitani ,  Takehisa Fujita ,  Shingo Kizaki

    IPC: C01B33/18 ,  C23C16/01 ,  C23C16/40 ,  C23C16/56 ,  H01M4/02 ,  H01M4/48

    Abstract: [Problem to be solved] To produce an SiO powder having a rounded spherical particulate shape and a small particle diameter; and further having a low degree of impurity contamination, efficiently and economically.
    [Solution] A mixture of Si and SiO2 as an SiO gas generation raw material 9 is loaded into a crucible 2. The mixture in the crucible 2 is heated under a reduced pressure so as to generate SiO gas. The generated SiO gas is accumulated on a deposition base 5 rotating on the crucible 2. When SiO deposit 10 accumulated on the deposition base 5 is scraped off with a blade 7, a tip of the blade 7 is separated from a surface of the deposition base 5, and in a state in which a portion of the SiO deposit 10 accumulated on the deposition base 5 is left on the deposition base 5, the remaining SiO deposit 10 is scraped off by the blade 7 and collected as an SiO powder 11.

    METHOD FOR PRODUCING SILICON OXIDE POWDER AND NEGATIVE ELECTRODE MATERIAL
    10.
    发明申请
    METHOD FOR PRODUCING SILICON OXIDE POWDER AND NEGATIVE ELECTRODE MATERIAL 有权

    公开(公告)号：US20220352518A1

    公开(公告)日：2022-11-03

    申请号：US17812402

    申请日：2022-07-13

    Applicant: OSAKA Titanium technologies Co.,Ltd.

    Inventor： Yusuke KASHITANI

    IPC: H01M4/58 ,  C01B33/32 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/36 ,  H01M4/1391 ,  H01M4/485

    Abstract: To produce a silicon oxide-based negative electrode material containing Li and having uniform distribution of a Li concentration both inside particles and between particles although a C-coating film is formed on a surface, and yet in which generation of SiC is suppressed. A SiO gas and a Li gas are simultaneously generated by heating a Si-lithium silicate-containing raw material under reduced pressure. The Si-lithium silicate-containing raw material includes Si, Li, and O, in which a part of the Si is present as a Si simple substance and the Li is present as lithium silicate. By cooling the generated gases, Li-containing silicon oxide having an average composition of SiLixOy (0.05

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