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    COMPOSITE PARTICLES, METHOD FOR PRODUCING THE SAME, AND USES THEREOF
    1.
    发明公开
    COMPOSITE PARTICLES, METHOD FOR PRODUCING THE SAME, AND USES THEREOF 审中-公开

    公开(公告)号：US20230234852A1

    公开(公告)日：2023-07-27

    申请号：US17927644

    申请日：2021-05-28

    Applicant: SHOWA DENKO K.K.

    Inventor： Masato FUJITA ,  Yuji ITO ,  Hirofumi INOUE

    IPC: C01B32/372 ,  C01B33/029 ,  H01M10/0525

    CPC classification number: C01B32/372 ,  C01B33/029 ,  H01M10/0525 ,  C01P2002/74 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/40

    Abstract: An object of the present invention is to provide carbon-coated Si—C composite particles capable of maintaining a high Si utilization rate and suppressing deterioration of initial coulombic efficiency due to oxidation over time of a lithium-ion secondary battery.
    The carbon-coated Si—C composite particles of the present invention includes Si—C composite particles containing a carbon material and silicon; and a carbonaceous layer present on surfaces of the Si—C composite particles,



    wherein the carbon coverage thereof is 70% or more,
    wherein the BET specific surface area is 200 m2/g or less; wherein R value (ID/IG) is 0.30 or more and 1.10 or less and ISi/IG is 0.15 or less, when the peak attributed to Si is present at 450 to 495 cm−1 and the intensity of the peak is defined as ISi, in Raman spectrum of the carbon-coated Si—C composite particles: and
    wherein the full width at half maximum of the peak of a 111 plane of Si is 3.00 deg. or more, and (peak intensity of a 111 plane of SiC)/(peak intensity of the 111 plane of Si) is 0.01 or less, in the XRD pattern measured by powder XRD using a Cu-Kα ray of the carbon-coated Si—C composite particles.

    COMPOSITE MATERIAL, MANUFACTURING METHOD THEREFOR, NEGATIVE ELECTRODE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY, AND THE LIKE
    3.
    发明申请
    COMPOSITE MATERIAL, MANUFACTURING METHOD THEREFOR, NEGATIVE ELECTRODE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY, AND THE LIKE 有权

    公开(公告)号：US20220399538A1

    公开(公告)日：2022-12-15

    申请号：US17775477

    申请日：2020-11-10

    Applicant: SHOWA DENKO K.K.

    Inventor： Akihisa TONEGAWA ,  Hirofumi INOUE ,  Daisuke KOHNO ,  Jinseok BAEK

    IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/485 ,  H01M4/583

    Abstract: An object of the present invention is to provide a composite material usable as a negative electrode material of a lithium-ion secondary battery.
    A composite material of the present invention includes: a carbonaceous material; and a metal oxide layer coating a surface of the carbonaceous material, in which the metal oxide layer coats the surface of the carbonaceous material, forming a sea-island structure in which the metal oxide layer is scattered in islands, and a coating rate of the carbonaceous material with the metal oxide layer is 20% or more and 80% or less.
    A composite material of the present invention includes: a carbonaceous material; and a metal oxide layer and amorphous carbon layer coating the surface of the carbonaceous material, in which the metal oxide layer is scattered in islands on the surface of the carbonaceous material.
    A composite material of the present invention includes: a carbonaceous material; and a metal oxide layer coating the surface of the carbonaceous material, in which the metal oxide layer has at least a portion having a thickness of more than 10 nm, and in a coated area with the metal oxide, an area percentage of a portion having a thickness of 10 nm or less is 70% or more and 99% or less, and an area percentage of the portion having a thickness of more than 10 nm is 1% or more and 30% or less. A composite material of the present invention also includes: a carbonaceous material; and a metal oxide layer and amorphous carbon layer coating the surface of the carbonaceous material, in which the metal oxide layer has at least a portion having a thickness of more than 10 nm, and in a coated area with the metal oxide layer, an area percentage of a portion having a thickness of 10 nm or less is 30% or more and 70% or less, and an area percentage of the portion having a thickness of more than 10 nm is 30% or more and 70% or less.

    CURABLE COMPOSITION, TRANSPARENT HEAT-RESISTANT MATERIAL, AND USE THEREOF
    4.
    发明申请
    CURABLE COMPOSITION, TRANSPARENT HEAT-RESISTANT MATERIAL, AND USE THEREOF 有权
    可固化组合物，透明耐热材料及其用途

    公开(公告)号：US20160017076A1

    公开(公告)日：2016-01-21

    申请号：US14771010

    申请日：2014-02-27

    Applicant: SHOWA DENKO K.K.

    Inventor： Hirofumi INOUE ,  Miyo MUKOBAYASHI

    IPC: C08F222/10

    CPC classification number: C08F222/1006 ,  C08F216/125 ,  C08F2222/104 ,  C09D4/00

    Abstract: The present invention provides a curable composition, which contains a crosslinking aid (B) containing three or more allyl groups in the molecule in an amount of 1 to 50 parts by mass, polyfunctional (meth)acrylic compound (C) in an amount of 5 to 50 parts by mass, and photopolymerization initiator (D1) and/or thermal polymerization initiator (D2) in an amount of 0.1 to 10 parts by mass, respectively, as a polymerization initiator (D) to 100 parts by mass of allyl group-terminated allyl ester oligomer (A);wherein the crosslinking aid (B) containing allyl group is a compound containing three or more allyl groups in a molecule; wherein the content of impurities derived from the crosslinking aid (B) in the curable composition is less than 0.1 mass %; wherein the content of the (meth)acrylic compound containing a hydroxyl group in a molecule (C1) in the curable composition is 0.5 to 30 mass %.

    Abstract translation: 本发明提供一种固化性组合物，其含有1〜50质量份的分子中含有3个以上的烯丙基的交联助剂（B），多官能（甲基）丙烯酸系化合物（C）的含量为5 相对于聚合引发剂（D）为0.1〜10质量份的光聚合引发剂（D1）和/或热聚合引发剂（D2），相对于100质量份的烯丙基 - 封端的烯丙基酯低聚物（A）; 其中含有烯丙基的交联助剂（B）是分子中含有3个以上烯丙基的化合物; 其中，来自所述交联助剂（B）的固化性组合物中的杂质含量小于0.1质量％ 其中，所述固化性组合物中的分子（C1）中含有羟基的（甲基）丙烯酸类化合物的含量为0.5〜30质量％。

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