公开(公告)号：US06761995B2

公开(公告)日：2004-07-13

申请号：US10333389

申请日：2003-01-17

申请人： Takao Uyama ,  Daisuke Yoshida ,  Toshihiko Izumikawa ,  Yasushi Hirakawa ,  Susumu Yamanaka

发明人： Takao Uyama ,  Daisuke Yoshida ,  Toshihiko Izumikawa ,  Yasushi Hirakawa ,  Susumu Yamanaka

IPC分类号： H01M202

CPC分类号： H01M2/08 ,  H01M2/0222 ,  H01M2/0404 ,  H01M2/0413 ,  H01M10/052 ,  H01M10/4228

摘要： A coin-shaped battery includes a cathode case (1) having a crimp portion (14) in the periphery of a bottom face (1a), and an anode cap (2) having a flange (6) with an extended portion (7) and a turn-up portion (8). Openings of cathode case (1) and the anode cap (2) are sealed by crimping with a gasket (3) interposed therebetween, so that the gasket (3) is compressed between the crimp portion (14) having a U-shaped cross section, the flange (6), the extended portion (7) and the turn-up portion (8) to effect reliable sealing. Thus, it is possible to disperse a deformation pressure, which is generated by bulge of the cathode case (1) and the anode cap (2) caused with a rise in internal pressure of the battery under severe working conditions such as use under a high temperature. As a result, the coin-shaped battery having improved liquid leakage resistance in the crimped portion is provided.

摘要翻译： 硬币型电池包括在底面（1a）的周边具有压接部（14）的阴极壳（1）和具有延伸部（7）的凸缘（6）的阳极盖（2） 和折返部（8）。 阴极壳（1）和阳极盖（2）的开口通过夹在其间的垫圈（3）进行卷边而被密封，使得垫圈（3）在具有U形截面的压接部分（14）之间被压缩 ，凸缘（6），延伸部分（7）和折返部分（8），以实现可靠的密封。 因此，可以分散在恶劣工作条件下使用时在电池内部压力升高下引起的阴极壳（1）和阳极盖（2）的膨胀产生的变形压力 温度。 结果，提供了在压接部分具有改善的耐液体渗漏性的硬币形电池。