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公开(公告)号：US20130196221A1
公开(公告)日：2013-08-01
申请号：US13750639
申请日：2013-01-25
发明人： Takayuki Hattori , Eiji Okutani , Yoshiya Maruyama , Yasuhiro Yamauchi , Hironori Harada , Toshihiro Takada , Hiroshi Inukai
IPC分类号： H01M2/02
CPC分类号： H01M2/0217 , H01M2/34
摘要： A crimped portion of a positive electrode external terminal is crimped on its upper end side to be electrically connected to a positive electrode terminal plate. This crimped portion is welded to the positive electrode terminal plate by applying high energy beams. The negative electrode side has a configuration similar to that of the positive electrode side. The contact area between the positive electrode terminal plate and the crimped portion of the positive electrode external terminal is set smaller than the corresponding contact area on the negative electrode side, and the volume of the crimped portion of the positive electrode external terminal is set larger than that of the corresponding crimped portion on the negative electrode side. Thus, a prismatic secondary battery is provided that shows strong joining strength between the external terminal and the terminal plate, suppressed internal resistance variations, and improved reliability.
摘要翻译： 正极外部端子的压接部分在其上端被压接以与正极端子板电连接。 该卷曲部分通过施加高能束而焊接到正极端子板。 负极侧具有与正极侧相似的构造。 正极端子板和正极外部端子的压接部之间的接触面积被设定为小于负极侧的对应的接触面积，正极外部端子的压接部的体积被设定为大于 在负极侧的相应的压接部分。 因此，提供了一种棱柱二次电池，其显示出外部端子和端子板之间的强耦合强度，内部电阻变化的抑制和可靠性的提高。
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公开(公告)号：US08906545B2
公开(公告)日：2014-12-09
申请号：US13750639
申请日：2013-01-25
发明人： Takayuki Hattori , Eiji Okutani , Yoshiya Maruyama , Yasuhiro Yamauchi , Hironori Harada , Toshihiro Takada , Hiroshi Inukai
CPC分类号： H01M2/0217 , H01M2/34
摘要： A crimped portion of a positive electrode external terminal is crimped on its upper end side to be electrically connected to a positive electrode terminal plate. This crimped portion is welded to the positive electrode terminal plate by applying high energy beams. The negative electrode side has a configuration similar to that of the positive electrode side. The contact area between the positive electrode terminal plate and the crimped portion of the positive electrode external terminal is set smaller than the corresponding contact area on the negative electrode side, and the volume of the crimped portion of the positive electrode external terminal is set larger than that of the corresponding crimped portion on the negative electrode side. Thus, a prismatic secondary battery is provided that shows strong joining strength between the external terminal and the terminal plate, suppressed internal resistance variations, and improved reliability.
摘要翻译： 正极外部端子的压接部分在其上端被压接以与正极端子板电连接。 该卷曲部分通过施加高能束而焊接到正极端子板。 负极侧具有与正极侧相似的构造。 正极端子板和正极外部端子的压接部之间的接触面积被设定为小于负极侧的对应的接触面积，正极外部端子的压接部的体积被设定为大于 在负极侧的相应的压接部分。 因此，提供了一种棱柱二次电池，其显示出外部端子和端子板之间的强耦合强度，内部电阻变化的抑制和可靠性的提高。
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