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    Process for fabricating nonaqueous electrolyte secondary cells
    4.
    发明授权
    Process for fabricating nonaqueous electrolyte secondary cells 有权
    制造非水电解质二次电池的方法

    公开(公告)号：US06995333B2

    公开(公告)日：2006-02-07

    申请号：US10740579

    申请日：2003-12-22

    申请人： Naoya Nakanishi ,  Kouichi Satoh ,  Toshiyuki Nohma ,  Ikuo Yonezu

    发明人： Naoya Nakanishi ,  Kouichi Satoh ,  Toshiyuki Nohma ,  Ikuo Yonezu

    IPC分类号： B23K15/00 ,  B23K20/00 ,  H01M10/04 ,  H01M2/26

    CPC分类号： H01M10/0587 ,  H01M2/263 ,  H01M10/05 ,  H01M10/0525 ,  Y10T29/49114

    摘要： A nonaqueous electrolyte secondary cell comprises a rolled-up electrode unit 2 composed of a positive electrode 23, a negative electrode 21 and a separator 22 interposed therebetween, and a negative electrode current collector plate 3 and a positive electrode current collector plate 30 joined to the respective ends of the electrode unit 2. The negative electrode collector plate 3 is joined to an edge of the negative electrode 21 projecting at one of the opposite ends of the electrode unit 2. The collector plate 3 has a two-layer structure comprising a copper layer 31 made of copper or an alloy consisting predominantly of copper, and a metal layer made of a metal not forming an intermetallic compound with lithium and having a lower laser beam reflectivity than copper or an alloy consisting predominantly of the metal. The collector plate 3 has its copper layer 31 contacted with the edge of the negative electrode 21 and welded thereto with a laser beam. This improves the weldability of the collector plate 3 to the rolled-up electrode unit 2 to achieve a high current collecting efficiency.

    摘要翻译： 非水电解质二次电池包括由正极23，负极21和隔板22构成的卷绕电极单元2，以及连接到所述电极单元2的负极集电板3和正极集电板30。 电极单元2的相应端部。 负极集电板3与在电极单元2的一个相对端突出的负极21的边缘接合。 集电板3具有由铜构成的铜层31或主要由铜构成的合金的铜层31和不与锂形成金属间化合物并且具有比铜低的激光束反射率的金属的金属层的二层结构 或主要由金属组成的合金。 集电板3的铜层31与负极21的边缘接触并用激光束焊接在其上。 这提高了集电板3与卷起电极单元2的可焊性，以实现高的集电效率。

    Nonaqueous electrolyte secondary cells and process for fabricating same
    5.
    发明授权
    Nonaqueous electrolyte secondary cells and process for fabricating same 有权
    非水电解质二次电池及其制造方法

    公开(公告)号：US06730438B2

    公开(公告)日：2004-05-04

    申请号：US10083582

    申请日：2002-02-27

    申请人： Naoya Nakanishi ,  Kouichi Satoh ,  Toshiyuki Nohma ,  Ikuo Yonezu

    发明人： Naoya Nakanishi ,  Kouichi Satoh ,  Toshiyuki Nohma ,  Ikuo Yonezu

    IPC分类号： H01M466

    CPC分类号： H01M10/0587 ,  H01M2/263 ,  H01M10/05 ,  H01M10/0525 ,  Y10T29/49114

    摘要： A nonaqueous electrolyte secondary cell includes a rolled-up electrode unit composed of a positive electrode, a negative electrode and a separator interposed therebetween, and a negative electrode current collector plate and a positive electrode current collector plate joined to the respective ends of the electrode unit. The collector plate has a two-layer structure comprising a copper layer made of copper or an alloy consisting predominantly of copper, and a metal layer made of a metal not forming an intermetallic compound with lithium and having a lower laser beam reflectivity than copper or an alloy consisting predominantly of the metal. The collector plate has its copper layer contacted with an edge of the negative electrode projecting at one of the opposite ends of the electrode unit and welded thereto with a laser beam.

    摘要翻译： 非水电解质二次电池包括由正电极，负电极和隔膜插入的卷绕电极单元，以及连接到电极单元的各个端部的负极集电板和正极集电板 。 集电板具有包括由铜构成的铜层或主要由铜构成的合金的两层结构，以及由不与铜形成金属间化合物并且具有比铜或更低的激光束反射率的金属制成的金属层 主要由金属组成的合金。 集电板的铜层与负电极的边缘接触，在电极单元的相对端之一处突出并用激光束焊接。

    Secondary cell
    6.
    发明授权
    Secondary cell 失效
    二次电池

    公开(公告)号：US06562508B1

    公开(公告)日：2003-05-13

    申请号：US09385454

    申请日：1999-08-30

    申请人： Kouichi Satoh ,  Naoya Nakanishi ,  Kazuyasu Fujiwara ,  Toshiyuki Nohma ,  Ikuo Yonezu

    发明人： Kouichi Satoh ,  Naoya Nakanishi ,  Kazuyasu Fujiwara ,  Toshiyuki Nohma ,  Ikuo Yonezu

    IPC分类号： H01M212

    CPC分类号： H01M2/1241 ,  H01M2/04 ,  H01M10/052

    摘要： A secondary cell comprises a gastight can 1 having a cylinder 11 and a lid 12 fixed to an opening portion of the cylinder, and a secondary cell element accommodated in the can 1. The lid 12 is fixedly provided with a gas vent closure 4 in the form of a disk and having a diaphragm 42 openable upon the internal pressure of the can 1 exceeding a predetermined value. The gas vent closure 4 has an outer peripheral portion welded to an opening edge defining a through bore 14 formed in the lid 12. The lid 12 is formed in a front surface thereof with a circumferential groove 5 surrounding the welded portion of the gas vent closure 4, and a diminished portion 51 is provided between the groove 5 and the welded portion for reducing the sectional area of a heat flow path for the heat of welding to pass therethrough. The lid 12 thus constructed makes it possible to weld the vent closure 4 to the lid 12 free of defects such as pinholes or cracks.

    摘要翻译： 二次电池包括具有气缸11和固定到气缸的开口部分的盖12的气密罐1和容纳在罐1中的二次电池元件。盖12固定地设置有气体排出盖4 盘的形式，具有在罐1的内部压力超过预定值时可开启的隔膜42。 排气口4具有焊接到限定形成在盖12中的通孔14的开口边缘的外周部分。盖12在其前表面上形成有周围槽5，周向槽5包围气体通气口的焊接部分 如图4所示，并且在槽5和焊接部分之间设置有减小部分51，用于减小焊接热通过的热流路的截面面积。 如此构造的盖12使得能够将通气口4焊接到盖12，而没有诸如针孔或裂缝的缺陷。

    Nonaqueous secondary battery
    7.
    发明授权
    Nonaqueous secondary battery 失效
    非水二次电池

    公开(公告)号：US06551743B1

    公开(公告)日：2003-04-22

    申请号：US09534241

    申请日：2000-03-23

    申请人： Naoya Nakanishi ,  Kouichi Satoh ,  Kazuyasu Fujiwara ,  Toshiyuki Nohma ,  Ikuo Yonezu

    发明人： Naoya Nakanishi ,  Kouichi Satoh ,  Kazuyasu Fujiwara ,  Toshiyuki Nohma ,  Ikuo Yonezu

    IPC分类号： H01M450

    CPC分类号： H01M4/505 ,  H01M10/0525 ,  H01M10/446

    摘要： In the nonaqueous secondary battery of this invention, a positive electrode includes, as an active material, a composite oxide represented by a composition formula, LixMn2−y−zNiyMzOq, wherein M is at least one element selected from the group consisting of B, Mg, Al, Ti, V, Fe, Co, Cu, Zn, Ga, Y, Zr, Nb, Mo and In; 1.20≦x≦1.80; y≧0.10; z≧0; y+z≦1.90; and 3.70≦q≦4.30, in a discharge state during fabrication of the nonaqueous secondary battery. As a result, the nonaqueous secondary battery can exhibit good charge-discharge cycle performance and can be fabricated at low cost.

    摘要翻译： 在本发明的非水二次电池中，作为活性物质，正极包含由组成式LixMn2-y-zNiyMzOq表示的复合氧化物，其中M为选自B，Mg中的至少一种元素 ，Al，Ti，V，Fe，Co，Cu，Zn，Ga，Y，Zr，Nb，Mo和In; 1.20 <= x <= 1.80; y> = 0.10; z> = 0; y + z <= 1.90; 和3.70 <= q <= 4.30，在非水系二次电池的制造时处于放电状态。 结果，非水二次电池可以表现出良好的充放电循环性能，并且可以以低成本制造。

    Lithium secondary cell
    9.
    发明授权
    Lithium secondary cell 失效
    锂二次电池

    公开(公告)号：US06521374B1

    公开(公告)日：2003-02-18

    申请号：US09387833

    申请日：1999-09-01

    申请人： Naoya Nakanishi ,  Kouichi Satoh ,  Kazuyasu Fujiwara ,  Toshiyuki Nohma ,  Ikuo Yonezu

    发明人： Naoya Nakanishi ,  Kouichi Satoh ,  Kazuyasu Fujiwara ,  Toshiyuki Nohma ,  Ikuo Yonezu

    IPC分类号： H01M202

    CPC分类号： H01M10/052 ,  H01M2/06 ,  H01M2/302 ,  H01M2/32 ,  H01M4/13 ,  H01M10/0525 ,  H01M10/0587

    摘要： For use in lithium secondary cells, a positive electrode terminal 51 and a negative electrode terminal 81 are given an enhanced mechanical strength to improve the reliability of electrical connection between the cell and an external circuit, while the formation of oxide film on these terminals is inhibited to suppress the discharge voltage drop of the cell. To give these advantages to the lithium secondary cell embodying the invention, the positive electrode terminal 51 is formed from an aluminum alloy containing magnesium and silicon in a combined amount of at least 1.0 wt. % as additive elements, and the negative electrode terminal 81 is formed by plating a substrate of oxygen-free copper with nickel.

    摘要翻译： 为了在锂二次电池中使用，正极端子51和负极端子81被赋予增强的机械强度，以提高电池和外部电路之间的电连接的可靠性，同时抑制这些端子上的氧化膜的形成 以抑制电池的放电电压降。 为了将本发明的锂二次电池赋予这些优点，正极端子51由含有镁和硅的铝合金形成，其量为至少1.0wt。 ％作为添加元素，负极端子81通过用镍镀无氧铜基板而形成。

    Nonaqueous electrolyte secondary cells and process for fabricating same
    10.
    发明授权
    Nonaqueous electrolyte secondary cells and process for fabricating same 有权
    非水电解质二次电池及其制造方法

    公开(公告)号：US06692863B1

    公开(公告)日：2004-02-17

    申请号：US09636506

    申请日：2000-08-10

    申请人： Naoya Nakanishi ,  Kouichi Satoh ,  Toshiyuki Nohma ,  Ikuo Yonezu

    发明人： Naoya Nakanishi ,  Kouichi Satoh ,  Toshiyuki Nohma ,  Ikuo Yonezu

    IPC分类号： H01M400

    CPC分类号： H01M10/0587 ,  H01M2/263 ,  H01M10/05 ,  H01M10/0525 ,  Y10T29/49114

    摘要： A nonaqueous electrolyte secondary cell includes a rolled-up electrode unit composed of a positive electrode, a negative electrode and a separator interposed therebetween, and a negative electrode current collector plate and a positive electrode current collector plate joined to the respective ends of the electrode unit. The negative electrode collector plate is joined to an edge of the negative electrode projecting at one of the opposite ends of the electrode unit. The collector plate has a two-layer structure of a copper layer made of copper or an alloy consisting predominantly of copper, and a metal layer made of a metal not forming an intermetallic compound with lithium and having a lower laser beam reflectivity than copper or an alloy consisting predominantly of the metal. The collector plate has its copper layer contacted with the edge of the negative electrode and welded thereto with a laser beam.

    摘要翻译： 非水电解质二次电池包括由正电极，负电极和隔膜插入的卷绕电极单元，以及连接到电极单元的各个端部的负极集电板和正极集电板 。 负极集电板接合到在电极单元的一个相对端突出的负极的边缘。 集电板具有由铜或主要由铜组成的合金的铜层的两层结构，以及由不与铜形成金属间化合物并且具有比铜或更低的激光束反射率的金属制成的金属层 主要由金属组成的合金。 集电板的铜层与负极的边缘接触并用激光束焊接在其上。