公开(公告)号：US5766793A

公开(公告)日：1998-06-16

申请号：US727309

申请日：1996-10-08

申请人： Toshizou Kameishi ,  Toshiharu Hayashi

发明人： Toshizou Kameishi ,  Toshiharu Hayashi

IPC分类号： H01M2/12 ,  H01M2/34 ,  H01M10/42 ,  H01M10/50

CPC分类号： H01M2/348 ,  H01M2/34 ,  H01M2/1241

摘要： A safety device for a battery which can prevent explosion of the battery due to overcharging or shortcircuiting. In the safety device, a current flows through generating unit, lead, terminal of a conductor case, PTC plate, annular terminal, contact to electrode lid. A disk spring, generally called a bimetal, is adapted to bend backward when it is heated to a predetermined temperature. If the generating unit heats up by producing gas due to overcharging or shortcircuiting, the disk spring is heated. When heated to a predetermined temperature, it will bend backward, while pushing up a moving piece, which in turn pushing up the contact, thus separating the contact from the annular terminal. The current-flow path in the battery is thus cut, so that the generating unit will not heat up any further.

摘要翻译： 一种用于电池的安全装置，其可以防止由于过充电或短路引起的电池爆炸。 在安全装置中，电流流经发电机组，引线端子，导体壳体，PTC板，环形端子，与电极盖接触。 通常称为双金属片的盘弹簧适于当其被加热到预定温度时向后弯曲。 如果发电机由于过充电或短路而产生气体而加热，则盘簧被加热。 当加热到预定温度时，它将向后弯曲，同时向上推动移动件，而移动件反过来推动接触件，从而将接触件与环形端子分离。 因此，电池中的电流流动路径被切断，使得发电单元不会进一步升温。

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。