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    NEGATIVE ELECTRODE ACTIVE MATERIAL, AND NEGATIVE ELECTRODE AND LITHIUM ION SECONDARY BATTERY USING THE NEGATIVE ELECTRODE ACTIVE MATERIAL
    3.
    发明申请
    NEGATIVE ELECTRODE ACTIVE MATERIAL, AND NEGATIVE ELECTRODE AND LITHIUM ION SECONDARY BATTERY USING THE NEGATIVE ELECTRODE ACTIVE MATERIAL 审中-公开
    负极电极活性材料，负极电极和锂离子二次电池使用负极电极活性材料

    公开(公告)号：US20160211510A1

    公开(公告)日：2016-07-21

    申请号：US14913516

    申请日：2014-09-26

    Applicant: TDK CORPORATION

    Inventor： Yasuhiro IKEDA ,  Atsushi SANO ,  Masaki SOBU ,  Akinobu NOJIMA

    IPC: H01M4/36 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/48

    CPC classification number: H01M4/364 ,  H01M4/386 ,  H01M4/483 ,  H01M4/485 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/027

    Abstract: A negative electrode active material is provided for a lithium ion secondary battery having high initial charging/discharging efficiency. The negative electrode active material containing silicon and silicon oxide has two phases with different compositions therein. One of the two phases has a lower silicon element concentration than the other phase, and is a fibrous phase forming a network structure in a cross section of primary particle of the negative electrode active material. Use of the negative electrode active material enables a sufficient increase in initial charging/discharging efficiency.

    Abstract translation: 为具有高初始充放电效率的锂离子二次电池提供负极活性物质。 含有硅和氧化硅的负极活性物质具有不同组成的两相。 两相中的一个相对于其他相具有较低的硅元素浓度，并且是在负极活性物质的一次粒子的截面中形成网状结构的纤维状相。 使用负极活性物质能够充分提高初始充放电效率。

    NEGATIVE ELECTRODE ACTIVE MATERIAL, ELECTRODE CONTAINING THE SAME, AND LITHIUM ION SECONDARY BATTERY HAVING THE ELECTRODE
    5.
    发明申请
    NEGATIVE ELECTRODE ACTIVE MATERIAL, ELECTRODE CONTAINING THE SAME, AND LITHIUM ION SECONDARY BATTERY HAVING THE ELECTRODE 有权
    负极电极活性材料，含有该电极的电极以及具有电极的锂离子二次电池

    公开(公告)号：US20130256591A1

    公开(公告)日：2013-10-03

    申请号：US13845836

    申请日：2013-03-18

    Applicant: TDK CORPORATION

    Inventor： Yasuhiro IKEDA ,  Atsushi SANO ,  Masaki SOBU ,  Tetsuo TAKAISHI

    IPC: H01M4/48

    CPC classification number: H01M4/48

    Abstract: A negative electrode active material mainly contains silicon and silicon oxide. In the negative electrode active material, an Ar-laser Raman spectrum thereof includes a peak A corresponding to 950±30 cm−1 and a peak B corresponding to 480±30 cm−1, and an intensity ratio of the peak B to the peak A (B/A) is in the range of 1 to 10.

    Abstract translation: 负极活性物质主要含有硅和氧化硅。 在负极活性物质中，其Ar激光拉曼光谱包括对应于950±30cm -1的峰A和对应于480±30cm -1的峰B，峰B与峰的强度比 A（B / A）在1到10的范围内。

    NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY USING THE SAME
    6.
    发明申请
    NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY USING THE SAME 审中-公开
    用于锂离子二次电池的负极和使用其的锂离子二次电池

    公开(公告)号：US20160141626A1

    公开(公告)日：2016-05-19

    申请号：US14897554

    申请日：2014-06-11

    Applicant: TDK CORPORATION

    Inventor： Nobuyuki HOSAKA ,  Yasuhiro IKEDA ,  Kazumasa TANAKA ,  Atsushi SANO

    IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/134 ,  H01M4/48

    CPC classification number: H01M4/622 ,  H01M4/134 ,  H01M4/386 ,  H01M4/48 ,  H01M4/485 ,  H01M10/0525 ,  H01M2004/027 ,  Y02T10/7011

    Abstract: A negative electrode for a lithium ion secondary battery, which has high energy density and which can suppress a crease (form change) of a negative electrode active material layer and a negative electrode current collector caused by the expansion and contraction occurring along with the quick charging and discharging and also suppress the falloff of the negative electrode active material layer after the quick charging and discharging cycle, and a lithium ion secondary battery using the negative electrode. The negative electrode for a lithium ion secondary battery and the lithium ion secondary battery include: a negative electrode active material including 5% or more of silicon or silicon oxide; a binder that is polyacrylate whose carboxylic groups at terminals of side chains of polyacrylic acid are cross-linked with magnesium or alkaline earth metal; and a negative electrode current collector.

    Abstract translation: 一种锂离子二次电池用负极，其能量密度高，能够抑制随着快速充电而发生的膨胀和收缩引起的负极活性物质层和负极集电体的折痕（变形） 并且在快速充放电循环之后放电并抑制负极活性物质层的衰减，以及使用负极的锂离子二次电池。 锂离子二次电池用负极和锂离子二次电池包括：含有5％以上的硅或氧化硅的负极活性物质; 聚丙烯酸酯的粘合剂，其聚丙烯酸侧链末端的羧基与镁或碱土金属交联; 和负极集电体。

    LITHIUM-ION SECONDARY BATTERY
    7.
    发明申请
    LITHIUM-ION SECONDARY BATTERY 有权
    锂离子二次电池

    公开(公告)号：US20130260256A1

    公开(公告)日：2013-10-03

    申请号：US13845707

    申请日：2013-03-18

    Applicant: TDK CORPORATION

    Inventor： Yasuyuki KAWANAKA ,  Kazumasa TANAKA ,  Yasuhiro IKEDA ,  Atsushi SANO

    IPC: H01M4/38

    CPC classification number: H01M4/386 ,  H01M2/1673 ,  H01M4/134 ,  H01M10/0525 ,  H01M2004/021 ,  Y02E60/122 ,  Y02T10/7011

    Abstract: In the invention, a lithium-ion secondary battery, in which a value obtained by dividing average 3% modulus strength of a separator by average 3% modulus strength of a negative electrode including a negative electrode active material layer containing silicon and silicon oxide as a main component is 0.079 or less, is used.

    Abstract translation: 在本发明中，提供一种锂离子二次电池，其中通过将隔板的平均3％模量强度除以包含含有硅和氧化硅的负极活性物质层的负极的平均3％模量强度而得到的值为 主要成分为0.079以下。

    LITHIUM ION SECONDARY BATTERY
    8.
    发明申请
    LITHIUM ION SECONDARY BATTERY 有权
    锂离子二次电池

    公开(公告)号：US20130260247A1

    公开(公告)日：2013-10-03

    申请号：US13846266

    申请日：2013-03-18

    Applicant: TDK CORPORATION

    Inventor： Yasuhiro IKEDA ,  Atsushi SANO

    IPC: H01M4/134 ,  H01M4/131

    CPC classification number: H01M4/134 ,  H01M4/131 ,  H01M4/364 ,  H01M4/366 ,  H01M4/386 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/625 ,  H01M10/052 ,  Y02E60/122

    Abstract: A lithium ion secondary battery includes a positive electrode including a positive electrode active material having a composition represented by the formula (1) LixNiyCozMtO2  (1) (wherein the element M is at least one kind selected from the group consisting of Mg, Ba, Al, Ti, Mn, V, Fe, Zr, and Mo and x, y, z, and t satisfy the following formulae: 0.9≦x≦1.2, 0≦y≦1.1, 0≦z≦1.1, and 0≦t≦1.1), and a negative electrode including a negative electrode active material mainly containing silicon and silicon oxide, and having an absorbance of 0.01 to 0.035 at 2110±10 cm−1 according to an FT-IR method.

    Abstract translation: 锂离子二次电池包括具有由式（1）表示的组成的正极活性物质Li x Ni y Co z M t O 2（1）的正极（其中，元素M为选自Mg，Ba，Al中的至少一种 ，Ti，Mn，V，Fe，Zr和Mo，x，y，z和t满足下列公式：0.9 @ x @ 1.2,0 @ y @ 1.1，0 @ z @ 1.1和0 @ 1.1），以及包含主要含有硅和氧化硅的负极活性物质的负极，根据FT-IR方法，在2110±10cm -1处的吸光度为0.01〜0.035。

    NEGATIVE ELECTRODE AND LITHIUM ION SECONDARY BATTERY
    9.
    发明申请
    NEGATIVE ELECTRODE AND LITHIUM ION SECONDARY BATTERY 有权
    负极和锂离子二次电池

    公开(公告)号：US20130260243A1

    公开(公告)日：2013-10-03

    申请号：US13846260

    申请日：2013-03-18

    Applicant: TDK CORPORATION

    Inventor： Yasuhiro IKEDA ,  Atsushi SANO

    IPC: H01M4/134

    CPC classification number: H01M4/134 ,  H01M4/131 ,  H01M4/386 ,  H01M4/485 ,  H01M2004/021 ,  Y02E60/122

    Abstract: A negative electrode includes a negative electrode active material layer containing a negative electrode active material mainly containing silicon and silicon oxide. In the negative electrode, the ratio of the film thickness of the negative electrode active material layer to the particle size distribution D99 is in the range of 1.2 to 2.0, the value of the D99 is in the range of 7 to 27 μm, and the negative electrode active material layer has a density ranging from 1.2 to 1.6 g/cm3.

    Abstract translation: 负极包括含有主要含有硅和氧化硅的负极活性物质的负极活性物质层。 在负极中，负极活性物质层的膜厚与粒径分布D99的比例在1.2〜2.0的范围内，D99的值在7〜27μm的范围内， 负极活性物质层的密度为1.2〜1.6g / cm 3。

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