Method of manufacturing a lithium battery
    7.
    发明授权
    Method of manufacturing a lithium battery 有权
    制造锂电池的方法

    公开(公告)号:US06197074B1

    公开(公告)日:2001-03-06

    申请号:US09588581

    申请日:2000-06-07

    IPC分类号: H01M226

    摘要: A method for manufacturing a lithium battery is provided. The battery includes electrodes formed of a layer of an active material, the active material being capable of occluding and discharging lithium electrochemically, provided on the surface of a current collector, electrode external terminals for providing electricity to the outside of the battery, and an electrode tab joined at an end thereof to a surface of said current collector and at another end thereof to an electrode external terminal. The electrode tab has a roughened surface at the end joined to the current collector, and the roughened surface is welded to the surface of said current collector. The roughened surface is produced by chemical etching, abrasion by an abrasive, abrasion by ultrasonic waves or by blasting with an abrasive.

    摘要翻译: 提供一种锂电池的制造方法。 电池包括由活性材料层形成的电极,活性材料能够电化学地吸收和放电锂,设置在集电器的表面上,用于向电池外部提供电力的电极外部端子,以及电极 突片在其一端连接到所述集电器的表面,并且在另一端连接到电极外部端子。 电极片在与集电器连接的一端具有粗糙表面,并且粗糙表面焊接到集电器的表面。 粗糙表面通过化学蚀刻,磨料磨损,超声波磨损或用研磨剂喷砂而产生。

    Lithium battery with roughened electrode tab
    8.
    发明授权
    Lithium battery with roughened electrode tab 有权
    锂电池带粗糙电极片

    公开(公告)号:US6117589A

    公开(公告)日:2000-09-12

    申请号:US196759

    申请日:1998-11-20

    摘要: A lithium battery and method for manufacturing the lithium battery are provided. The battery includes electrodes formed of a layer of an active material, the active material being capable of occluding and discharging lithium electrochemically, provided on the surface of a current collector, electrode external terminals for providing electricity to the outside of the battery, and an electrode tab joined at an end thereof to a surface of said current collector and at another end thereof to an electrode external terminal. The electrode tab has a roughened surface at the end joined to the current collector, and the roughened surface is welded to the surface of said current collector. The roughened surface is produced by chemical etching, abrasion by an abrasive, abrasion by ultrasonic waves or by blasting with an abrasive.

    摘要翻译: 提供锂电池及锂电池的制造方法。 电池包括由活性材料层形成的电极,活性材料能够电化学地吸收和放电锂,设置在集电器的表面上,用于向电池外部提供电力的电极外部端子,以及电极 突片在其一端连接到所述集电器的表面,并且在另一端连接到电极外部端子。 电极片在与集电器连接的一端具有粗糙表面,并且粗糙表面焊接到集电器的表面。 粗糙表面通过化学蚀刻,磨料磨损,超声波磨损或用研磨剂喷砂而产生。

    Method of manufacturing cylindrical non-aqueous electrolyte secondary cell
    9.
    发明授权
    Method of manufacturing cylindrical non-aqueous electrolyte secondary cell 有权
    制造圆柱形非水电解质二次电池的方法

    公开(公告)号:US06193765B1

    公开(公告)日:2001-02-27

    申请号:US09163015

    申请日:1998-09-30

    IPC分类号: H01M602

    摘要: A method of manufacturing a cylindrical non-aqueous electrolyte secondary cell according to the present invention comprises a first step of forming a lead-attaching area on which an active material layer is not formed, in a positive electrode wherein a positive electrode active material layer is formed on both sides of the positive electrode current collector and a negative electrode wherein a negative electrode active material layer is formed on both sides of the negative electrode current collector, and winding the positive electrode and the negative electrode with disposing a separator therebetween so that the lead-attaching areas are protruded from the edges of the separator, and a second step of disposing a lead at an end part of the lead-attaching area with interposing a metal plate having a multiplicity of holes, and thereafter laser-welding the lead and the metal plate and the lead-attaching area by applying a laser beam with a spot diameter larger than a hole diameter of the metal plate. According to the present invention, it is feasible to laser-weld a lead to a lead-attaching area without fear of a short circuit resulting from the fusion in an electrode assembly caused by a laser beam.

    摘要翻译: 根据本发明的制造圆柱形非水电解质二次电池的方法包括在其中正极活性物质层为正极的正电极中形成未形成活性物质层的引线附着区域的第一步骤 形成在正极集电体的两侧,在负极集电体的两面形成有负极活性物质层的负极,并且通过在其间配置隔膜来卷绕正极和负极,使得 引线附着区域从隔板的边缘突出,并且第二步骤是在插入具有多个孔的金属板的引线附着区域的端部处设置引线,然后激光焊接引线, 金属板和引线附着区域通过施加具有大于孔的直径的光点直径的激光束 等板。 根据本发明,可以将引线激光焊接到引线附着区域,而不用担心由激光束引起的电极组件中的融合导致的短路。