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    NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    2.
    发明申请
    NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 有权
    非电解电解质二次电池和非电解电解质二次电池负极

    公开(公告)号：US20150364752A1

    公开(公告)日：2015-12-17

    申请号：US14762961

    申请日：2014-01-10

    Applicant: SANYO ELECTRIC CO., LTD. ,  PANASONIC CORPORATION

    Inventor： Kazuto Fukuda ,  Ayano Toyoda ,  Shouichiro Sawa ,  Taizou Sunano

    IPC: H01M4/134 ,  H01M4/62 ,  H01M10/052 ,  H01M4/38

    CPC classification number: H01M4/134 ,  H01M4/386 ,  H01M4/622 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/025 ,  H01M2004/027

    Abstract: A negative electrode for a nonaqueous electrolyte secondary battery according to one aspect of the present invention includes a negative electrode mixture layer that contains a binder and a negative electrode active material particle that forms an alloy with lithium and is formed on a current collector. The negative electrode mixture layer includes a base portion near the current collector and pillar-shaped portions formed on the base portion. A negative electrode for a nonaqueous electrolyte secondary battery according to another aspect of the present invention includes a negative electrode mixture layer that contains a binder and a negative electrode active material particle that forms an alloy with lithium and is formed on a current collector. The negative electrode mixture layer includes pillar-shaped portions and the particle diameter of the negative electrode active material particle is 20% or less of the maximum diameter of the pillar-shaped portions.

    Abstract translation: 根据本发明的一个方面的非水电解质二次电池用负极包括含有粘合剂的负极混合物层和与锂形成合金并形成在集电体上的负极活性物质粒子。 负极复合层包括在集电体附近的基部和形成在基部上的柱状部。 根据本发明的另一方面的非水电解质二次电池用负极包括含有粘合剂的负极混合物层和与锂形成合金并形成在集电体上的负极活性物质粒子。 负极合剂层包括柱状部分，负极活性物质粒子的粒径为柱状部的最大直径的20％以下。

    Negative electrode active material for nonaqueous electrolyte secondary batteries and nonaqueous electrolyte secondary battery
    9.
    发明授权
    Negative electrode active material for nonaqueous electrolyte secondary batteries and nonaqueous electrolyte secondary battery 有权

    公开(公告)号：US10205165B2

    公开(公告)日：2019-02-12

    申请号：US14769233

    申请日：2014-03-25

    Applicant: SANYO Electric Co., Ltd.

    Inventor： Kouhei Tuduki ,  Fukui Atsushi ,  Taizou Sunano

    IPC: H01M4/36 ,  H01M4/38 ,  H01M4/58 ,  H01M10/0525

    Abstract: The invention provides a nonaqueous electrolyte secondary battery having a large battery capacity and excellent charge/discharge cycle characteristics. The nonaqueous electrolyte secondary battery includes a negative electrode including a particulate negative electrode active material (33), a positive electrode and a nonaqueous electrolyte. The particulate negative electrode active material (33) includes a plurality of two-phase regions (34) in the particle wherein the two-phase regions include a first phase (A) containing silicon and a second phase (B) containing silicon oxide disposed on the periphery of the first phase, the negative electrode active material being such that the ratio of the intensity at 480 cm−1 wavelength to the intensity at 510 cm−1 wavelength in a Raman spectrum obtained by Raman spectroscopy is not more than 0.1 and the ratio of the intensity at 2θ=21.6 to the intensity at 2θ=28.4 in an X-ray diffraction pattern obtained by X-ray diffractometry is not more than 0.1.

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