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    Safety device for use in secondary battery
    3.
    发明授权
    Safety device for use in secondary battery 失效
    用于二次电池的安全装置

    公开(公告)号：US5766790A

    公开(公告)日：1998-06-16

    申请号：US634846

    申请日：1996-04-19

    申请人： Toshizo Kameishi ,  Tadayuki Izawa ,  Koji Kihara ,  Akira Imoto ,  Toshiharu Hayashi

    发明人： Toshizo Kameishi ,  Tadayuki Izawa ,  Koji Kihara ,  Akira Imoto ,  Toshiharu Hayashi

    IPC分类号： H01H37/54 ,  H01M2/12 ,  H01M2/34 ,  H01M10/50

    CPC分类号： H01M2/345 ,  H01H37/54 ,  H01H37/5436 ,  H01M2/1229 ,  H01M2/34 ,  H01M2/348

    摘要： A safety device for use in a secondary battery having a battery case formed with a hole open to outside of the battery case, and a generating unit airtightly housed in the battery case. The safety device includes a disk spring mounted on the battery case to close the hole and having one side thereof convexed toward the inside of the battery case. A switch is provided on the backside of the disk spring. It is adapted to change over under a stress applied from the disk spring when the disk spring bends backward so that the other side thereof is convexed toward the outside of the battery case. The switch is provided in a current flow path of the secondary battery.

    摘要翻译： 一种用于二次电池的安全装置，其具有形成有电池壳体外部的孔的电池壳体，以及密封地容纳在电池壳体中的发电单元。 安全装置包括安装在电池壳体上的盘簧，用于封闭孔，并且其一侧朝向电池壳体的内部凸起。 在盘簧的背面设有开关。 当盘弹簧向后弯曲使得其另一侧朝向电池壳体的外侧凸起时，适于在从盘簧施加的应力下切换。 开关设置在二次电池的电流流路中。

    Non-aqueous electrolyte secondary cell
    4.
    发明授权
    Non-aqueous electrolyte secondary cell 有权
    非水电解质二次电池

    公开(公告)号：US06355372B2

    公开(公告)日：2002-03-12

    申请号：US09196319

    申请日：1998-11-20

    申请人： Takayuki Yamahira ,  Ayaki Watanabe ,  Toshizou Kameishi ,  Koji Kihara

    发明人： Takayuki Yamahira ,  Ayaki Watanabe ,  Toshizou Kameishi ,  Koji Kihara

    IPC分类号： H01M212

    CPC分类号： H01M10/0525 ,  H01M2/1241 ,  H01M2/26 ,  H01M6/10 ,  H01M10/052

    摘要： An extremely safe non-aqueous electrolyte secondary cell free of explosions and which can promptly release the internal pressure in case of rise in the internal pressure. The non-aqueous electrolyte secondary cell has in its opening a cleavage valve obtained on bonding a metal foil to the opening. In case of rise in the internal pressure, the cleavage valve is cleft to release the pressure. In this cell, a value K corresponding to the internal volume in the cell in cm3 divided by the area of the opening in cm2 is set so that 40≦K≦350. By selecting the value K to a suitable value, the cleavage valve is in operation when the internal pressure reaches a predetermined value to release the pressure. The metal foil is produced by, for example, a electro-forming method or a cladding method. Preferably, a fluorine-based water-proofing agent is coated on the foil surface.

    摘要翻译： 非常安全的非水电解质二次电池没有爆炸，并且可以在内部压力升高的情况下迅速释放内部压力。 非水电解质二次电池在其开口处具有将金属箔接合到开口而获得的裂开阀。 在内部压力升高的情况下，裂解阀会裂开以释放压力。 在该单元中，将以cm为单位的电池内部体积相当于开口面积的单位为cm 2的值K设定为40≤K≤350。 通过将值K选择为合适的值，当内部压力达到预定值以释放压力时，裂解阀正在运行。 金属箔通过例如电铸法或包层法制造。 优选地，氟化防水剂涂覆在箔表面上。