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1. 发明公开

EP2869359A1 BATTERY AND METHOD FOR PRODUCING SAME 有权
标题翻译： BATTERIE UND VERFAHREN ZUR HERSTELLUNG DAVON
公开(公告)号：EP2869359A1
公开(公告)日：2015-05-06
申请号：EP13810322.1
申请日：2013-04-24
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： HARAYAMA Takashi , NARUSE Yoichi , SUZUKI Satoshi , NAKAYAMA Hiroyuki , OKADA Toshiya
IPC分类号： H01M2/04 , H01M2/02
CPC分类号： H01M2/08 , B23K26/20 , H01M2/0217 , H01M2/0426 , H01M2/20 , H01M2/30
摘要： A battery (1) houses an electrode body (9) inside a battery case (2). The battery case (2) has a bottomed cylindrical case body (3) having an opening (3k), and a plate-like lid member (4) that is inserted in the opening (3k) so as to seal the opening. The opening (3k) and a lid peripheral edge section (4f) are welded in an airtight manner by an energy beam (LS) irradiated from the outside in the thickness direction (TH) of the lid member (4). At a specific location (11), the inner peripheral surface (3ia) of the opening (3k) of the case body (3) and the peripheral edge surface (4ua) of the lid peripheral edge section (4f) of the lid member (4) are welded in a state in which said inner peripheral surface and peripheral edge surface are in close contact with each other. The shape of a bead (10a) at the specific location forms a fan shape having a central angle (θ) of 160 to 200 degrees in a cross section in the circumferential direction (SH) of the bead, and the center of the fan shape (10ac) is positioned on the inner peripheral surface (3ia) and the peripheral edge surface (4ua).
摘要翻译：电池（1）在电池壳体（2）的内部容纳电极体（9）。电池壳体（2）具有带有开口（3k）的有底圆柱形壳体（3）和插入开口（3k）中以密封开口的板状盖构件（4）。通过从盖体（4）的厚度方向（TH）的外侧照射的能量束（LS）以气密方式将开口（3k）和盖周缘部（4f）焊接。在特定位置（11），壳体（3）的开口（3k）的内周面（3ia）和盖构件的盖周缘部（4f）的周缘面（4ua） 4）在所述内周面和周缘面彼此紧密接触的状态下焊接。在特定位置处的胎圈（10a）的形状形成在胎圈的圆周方向（SH）的横截面中具有160至200度的中心角（¸）的扇形，并且扇形的中心（10ac）位于内周面（3ia）和周缘面（4ua）上。

2. 发明公开

EP2859986A1 WELDING DEVICE, WELDING METHOD, AND METHOD FOR PRODUCING CELL 审中-公开
标题翻译： SCHWEISSVORRICHTUNG，SCHWEISSVERFAHREN UND VERFAHREN ZUR ERZEUGUNG VON ZELLEN
公开(公告)号：EP2859986A1
公开(公告)日：2015-04-15
申请号：EP12879057.3
申请日：2012-06-12
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： SUGIYAMA Toru , NAKAMURA Hideo , NARUSE Yoichi , SHIBATA Yoshinori
IPC分类号： B23K26/26 , B23K26/20
CPC分类号： B23K26/0608 , B23K26/0604 , B23K26/0613 , B23K26/0617 , B23K26/24 , B23K26/242 , B23K26/26 , B23K26/32 , B23K2201/18 , B23K2201/36 , B23K2203/10
摘要： Provided is a technique by which, in laser welding, the desired weld penetration depth can be achieved without any oxide film lingering in the deep part of a weld pool. Provided is a welding device (1) for emitting a laser focused on a processing point (P). At the processing point, the laser has a profile similar to that of a superimposed laser formed by superimposing a first laser and a second laser having a smaller beam radius than that of the first laser. In the laser profile, a portion corresponding to the first laser has a power density of an extent enabling heat conduction welding, and in the laser profile, a portion corresponding to the second laser has a power density of an extent enabling keyhole welding.
摘要翻译：提供了一种技术，其中在激光焊接中，可以实现期望的焊接深度，而不会在焊池的深部中任何氧化膜滞留。提供一种用于发射聚焦在处理点（P）上的激光的焊接装置（1）。在处理点，激光器具有与通过叠加第一激光器和具有比第一激光器的光束半径更小的光束半径的第二激光器形成的叠加激光器的轮廓。在激光轮廓中，对应于第一激光器的部分具有能够进行热传导焊接的程度的功率密度，并且在激光轮廓中，对应于第二激光器的部分具有使得能够进行键孔焊接的程度的功率密度。

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