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    Negative electrode for lithium ion secondary battery, production method thereof and lithium ion secondary battery comprising the same
    3.
    发明申请
    Negative electrode for lithium ion secondary battery, production method thereof and lithium ion secondary battery comprising the same 有权
    锂离子二次电池用负极及其制造方法以及包含该锂离子二次电池的锂离子二次电池

    公开(公告)号：US20060099507A1

    公开(公告)日：2006-05-11

    申请号：US11266299

    申请日：2005-11-04

    申请人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Toshitada Sato ,  Hiroshi Yoshizawa

    发明人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Toshitada Sato ,  Hiroshi Yoshizawa

    IPC分类号： H01M4/58 ,  B05D5/12

    CPC分类号： H01M4/485 ,  H01M4/0419 ,  H01M4/0421 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/525 ,  H01M2004/021 ,  H01M2004/027

    摘要： A negative electrode for a lithium ion secondary battery of the present invention includes a current collector and an active material layer carried on the current collector. The active material layer contains silicon and oxygen. In the thickness direction of the active material layer, an oxygen ratio of the active material is greater at the side of the active material layer in contact with the current collector than at the side of the active material layer not in contact with the current collector. The active material layer contains no binder. By using the negative electrode described above, it is possible to provide a high capacity lithium ion secondary battery having superior high rate charge/discharge characteristics and excellent cycle characteristics.

    摘要翻译： 本发明的锂离子二次电池用负极包括在集电体上承载的集电体和活性物质层。 活性物质层含有硅和氧。 在活性物质层的厚度方向上，活性物质层的与集电体接触的一侧的活性物质的氧比在与集电体不接触的活性物质层侧相比更大。 活性物质层不含粘合剂。 通过使用上述负极，可以提供具有优异的高倍率充放电特性和优异的循环特性的高容量锂离子二次电池。

    Negative electrode for lithium ion secondary battery, production method thereof and lithium ion secondary battery comprising the same
    4.
    发明授权
    Negative electrode for lithium ion secondary battery, production method thereof and lithium ion secondary battery comprising the same 有权
    锂离子二次电池用负极及其制造方法以及包含该锂离子二次电池的锂离子二次电池

    公开(公告)号：US07919205B2

    公开(公告)日：2011-04-05

    申请号：US11266299

    申请日：2005-11-04

    申请人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Toshitada Sato ,  Hiroshi Yoshizawa

    发明人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Toshitada Sato ,  Hiroshi Yoshizawa

    IPC分类号： H01M4/00

    CPC分类号： H01M4/485 ,  H01M4/0419 ,  H01M4/0421 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/525 ,  H01M2004/021 ,  H01M2004/027

    摘要： A negative electrode for a lithium ion secondary battery of the present invention includes a current collector and an active material layer carried on the current collector. The active material layer contains silicon and oxygen. In the thickness direction of the active material layer, an oxygen ratio of the active material is greater at the side of the active material layer in contact with the current collector than at the side of the active material layer not in contact with the current collector. The active material layer contains no binder. By using the negative electrode described above, it is possible to provide a high capacity lithium ion secondary battery having superior high rate charge/discharge characteristics and excellent cycle characteristics.

    摘要翻译： 本发明的锂离子二次电池用负极包括在集电体上承载的集电体和活性物质层。 活性物质层含有硅和氧。 在活性物质层的厚度方向上，活性物质层的与集电体接触的一侧的活性物质的氧比在与集电体不接触的活性物质层侧相比更大。 活性物质层不含粘合剂。 通过使用上述负极，可以提供具有优异的高倍率充放电特性和优异的循环特性的高容量锂离子二次电池。

    Negative electrode for non-aqueous electrolyte secondary battery, manufacturing method therefor, and non-aqueous electrolyte secondary battery
    6.
    发明授权
    Negative electrode for non-aqueous electrolyte secondary battery, manufacturing method therefor, and non-aqueous electrolyte secondary battery 失效
    非水电解质二次电池用负极及其制造方法以及非水电解质二次电池

    公开(公告)号：US07638239B2

    公开(公告)日：2009-12-29

    申请号：US11289681

    申请日：2005-11-30

    申请人： Toshitada Sato ,  Yasutaka Kogetsu ,  Hiroshi Yoshizawa

    发明人： Toshitada Sato ,  Yasutaka Kogetsu ,  Hiroshi Yoshizawa

    IPC分类号： H01M4/58

    CPC分类号： H01M4/134 ,  H01M4/38 ,  H01M4/386 ,  H01M4/661 ,  H01M4/667 ,  H01M10/052 ,  H01M2004/027

    摘要： In a negative electrode for a non-aqueous electrolyte secondary battery including an active material portion capable of electrochemically absorbing and desorbing Li, a current collector carrying the active material portion, and a buffer interposed between the active material portion and the current collector, the active material portion includes at least one selected from the group consisting of a Si simple substance, a Si alloy, and a Si compound, the current collector includes Cu, and the buffer has a first layer contacting the current collector and including a group A element which is at least one selected from the group A consisting of Sn, Al, and In, and a second layer contacting the active material portion and including a group B element which is at least one selected from the group B consisting of transition metal elements other than Cu.

    摘要翻译： 在含有能够电化学吸收和解吸Li的活性物质部分的非水电解质二次电池用负极中，携带有活性物质部分的集电体和介于活性物质部分和集电体之间的缓冲剂，活性物质 材料部分包括选自由Si单质，Si合金和Si化合物组成的组中的至少一种，集电体包括Cu，并且缓冲层具有与集电体接触的第一层，并且包括A族元素， 是选自由Sn，Al和In构成的组A中的至少一种，第二层与活性物质部分接触，并且包含B族元素，该B族元素是选自除B以外的过渡金属元素的组B中的至少一种 铜。

    Negative Electrode for Non-Aqueous Electrolyte Secondary Battery and Method for Producing the Same
    7.
    发明申请
    Negative Electrode for Non-Aqueous Electrolyte Secondary Battery and Method for Producing the Same 失效
    非水电解质二次电池用负极及其制造方法

    公开(公告)号：US20080020271A1

    公开(公告)日：2008-01-24

    申请号：US11631489

    申请日：2005-09-14

    申请人： Toshitada Sato ,  Yasutaka Kogetsu ,  Hiroshi Yoshizawa

    发明人： Toshitada Sato ,  Yasutaka Kogetsu ,  Hiroshi Yoshizawa

    IPC分类号： H01M4/58 ,  H01M2/18 ,  H01M4/04

    CPC分类号： H01M10/052 ,  H01M4/0416 ,  H01M4/0421 ,  H01M4/0426 ,  H01M4/0428 ,  H01M4/0471 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/366 ,  H01M4/58 ,  H01M4/621 ,  H01M4/661 ,  H01M4/70 ,  H01M2004/021

    摘要： A negative electrode for a non-aqueous electrolyte secondary battery, including: an active material layer capable of electrochemically absorbing and desorbing at least Li; and a current collector sheet that supports the active material layer thereon and that does not react with Li, wherein the active material layer includes a plurality of deposited films or sintered films supported on a surface of the current collector sheet, and each of the deposited films or sintered films is provided with at least one groove formed in a side surface thereof, the groove extending from a top surface side towards the current collector sheet side thereof. It is preferable that the plurality of deposited films or sintered films are arranged in a grid configuration, a staggered grid configuration or a honeycomb configuration on a surface of the current collector sheet. It is preferable that, in a discharged state, the plurality of deposited films or sintered films have an average height of not less than 1 μm and not more than 30 μm.

    摘要翻译： 一种非水电解质二次电池用负极，其特征在于，包括：能够至少电化学吸收解吸的Li的活性物质层; 以及在其上支撑活性物质层并且不与Li反应的集电体片，其中活性物质层包括多个沉积膜或负载在集电体片表面上的烧结膜，并且每个沉积膜 或烧结膜设置有形成在其侧表面中的至少一个槽，所述槽从顶表面侧朝向集电体片侧延伸。 多个沉积膜或烧结膜优选以集电体片的表面上的格栅构造，交错格栅构造或蜂窝构造布置。 优选的是，在放电状态下，多个沉积膜或烧结膜的平均高度不小于1μm且不大于30μm。

    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR FABRICATING THE SAME
    8.
    发明申请
    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR FABRICATING THE SAME 审中-公开
    非电解电解质二次电池及其制造方法

    公开(公告)号：US20110135981A1

    公开(公告)日：2011-06-09

    申请号：US13058111

    申请日：2010-08-05

    申请人： Toshitada Sato ,  Yasutaka Kogetsu

    发明人： Toshitada Sato ,  Yasutaka Kogetsu

    IPC分类号： H01M4/13 ,  H01M4/70 ,  H01M10/36 ,  H01M10/052 ,  H01M10/04

    CPC分类号： H01M4/70 ,  H01M4/13 ,  H01M4/134 ,  H01M4/139 ,  H01M4/1395 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/0587 ,  H01M2004/027 ,  Y10T29/49108 ,  Y10T29/49115

    摘要： A negative electrode of a nonaqueous electrolyte secondary battery includes a negative electrode current collector (21A) and a negative electrode active material layer (21B). The negative electrode current collector (21A) has a thickness of greater than or equal to 20 μm and less than or equal to 50 μm. The negative electrode active material layer (21B) is provided on at least one surface of the negative electrode current collector (21A). The negative electrode is formed by cutting a negative electrode original sheet to a predetermined width. The negative electrode has cutting roll over portions (21D) at cut ends thereof. The cutting roll over portions (21D) are formed by stretching the negative electrode current collector (21A) upwardly or downwardly in the thickness direction of the negative electrode, and are oriented toward an inner side of an electrode group (31).

    摘要翻译： 非水电解质二次电池的负极包括负极集电体（21A）和负极活性物质层（21B）。 负极集电体（21A）的厚度大于等于20μm且小于等于50μm。 负极活性物质层（21B）设置在负极集电体（21A）的至少一个面上。 负极通过将负极原稿切割成规定的宽度而形成。 负极在其切断端处具有切割辊部分（21D）。 通过在负极的厚度方向上向上或向下拉伸负极集电体（21A）而形成切割辊（21D），并且朝向电极组（31）的内侧。

    Negative electrode for lithium ion secondary battery, producing method therefor, and lithium ion secondary battery using the negative electrode
    10.
    发明授权
    Negative electrode for lithium ion secondary battery, producing method therefor, and lithium ion secondary battery using the negative electrode 失效
    锂离子二次电池用负极及其制造方法以及使用该负极的锂离子二次电池

    公开(公告)号：US07862930B2

    公开(公告)日：2011-01-04

    申请号：US11377276

    申请日：2006-03-17

    申请人： Yasutaka Kogetsu ,  Toshitada Sato

    发明人： Yasutaka Kogetsu ,  Toshitada Sato

    IPC分类号： H01M4/58 ,  H01M4/02

    CPC分类号： H01M4/0426 ,  H01M4/0421 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/386 ,  H01M10/052

    摘要： A negative electrode for a lithium ion battery with high capacity, excellent cycle performance, and discharge performance at high load. In the negative electrode for a lithium ion secondary battery including a current collector and an active material layer carried on the current collector: the active material layer includes silicon, and an element M incapable of forming an alloy with lithium; the proportion of element M is higher in a first side contacting the current collector than in a second side opposite to the first side, in the thickness direction of the active material layer; the element M is different from the element forming the current collector; and the active material layer does not include a binder.

    摘要翻译： 具有高容量，优异的循环性能和高负载时的放电性能的锂离子电池用负极。 在包含集电体的锂离子二次电池用负极和在集电体上承载的活性物质层：活性物质层含有硅，不能与锂形成合金的元素M; 与活性物质层的厚度方向相比，与集电体接触的第一侧的元件M的比例高于在与第一侧相反的第二侧的第一侧的比例。 元件M不同于形成集电器的元件; 并且活性物质层不包括粘合剂。