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    • 1. 发明授权
    • Hermetically sealed cell
    • 密封电池
    • US06440599B1
    • 2002-08-27
    • US09403385
    • 2000-01-06
    • Akiyoshi TakadaKinji SaijoKazuo YoshidaNobuyuki YoshimotoYoshihiko Isobe
    • Akiyoshi TakadaKinji SaijoKazuo YoshidaNobuyuki YoshimotoYoshihiko Isobe
    • H01M212
    • H01M2/345H01M2/1241H01M2/34
    • The object of the present invention is to provide a closed battery capable of rapidly releasing the internal pressure thereof and at the same time disconnecting the current to effectively prevent a rise in temperature and explosion so that it may assure the safety and reliability of the battery, when, the internal pressure is elevated due to short circuit, overcharge, reverse charge, or the like in such a completely closed battery. A closed battery of the present invention is provided with a closing member serving as a valve chip, which is composed of a metal substrate 1 in which a valve element 5 is provided and defined by a break line 3, and a metal foil 2 adhered to the inner surface of the metal substrate 1. When the internal pressure of the battery is elevated, the valve element 5 is raised up from the metal substrate from the bending fulcrum portion 4 so as to permit a opening valve 7 to be formed, so that the metal foil 2 is allowed to burst accurately at a prescribed pressure, especially at a low pressure, so as to discharge the internal gas of the battery. Also, with a lead wire 6 attached to the metal foil 2, the burst can break the current so that the battery is prevented from exploding.
    • 本发明的目的是提供一种能够快速释放其内部压力并且同时断开电流以有效防止温度和爆炸升高的封闭电池,从而可以确保电池的安全性和可靠性, 当这种完全闭合的电池中,内部压力由于短路,过充电,反向充电等而升高。本发明的封闭电池设置有用作阀芯的关闭构件,该闭合构件由 金属基板1,其中由断线3设置并限定阀元件5,以及金属箔2,金属箔2粘附到金属基板1的内表面。当电池的内部压力升高时,阀元件5 从金属基材从弯曲支点部分4升起以允许形成打开阀7,使得允许金属箔2在规定的压力下精确地爆裂,e 特别是在低压下排出电池的内部气体。 另外,在金属箔2上安装有引线6的情况下,突发会破坏电流,防止电池爆炸。
    • 3. 发明授权
    • Explosion-proof safety valve assemblage for a secondary battery
    • 二次电池防爆安全阀组合
    • US06497978B1
    • 2002-12-24
    • US09445300
    • 2000-03-02
    • Akiyoshi TakadaKinji SaijoKazuo YoshidaNobuyuki YoshimotoYoshihiko Isobe
    • Akiyoshi TakadaKinji SaijoKazuo YoshidaNobuyuki YoshimotoYoshihiko Isobe
    • H01M0208
    • H01M2/1241H01M10/052
    • The object of the present invention is to provide an explosion-proof safety valve assemblage having a lead cap which allows some of the manufacturing man-hour in the process such as precision working and positioning to be deleted, since the lead cap is integrally formed with an explosion-proof safety valve and serves to provide a current circuit in a battery in place of a conventional one composed of lead plate or lead wire which requires such precision working and positioning operations, and to provide a closed secondary battery using the above mentioned safety valve assemblage. An explosion-proof safety valve assemblage for use in a closed secondary battery comprising an outer container, an electrode element, consisting of a positive electrode, negative electrode, and a separator, accommodated in said outer container, wherein said safety valve assemblage is sealingly secured to an open end portion of said outer container via an insulating gasket integrally with a closing cap, and it consists of an explosion-proof safety valve element, a coreless disc-shaped insulator, and a lead cap formed of a metal substrate and a metal foil laminated to the metal substrate, substantially the center of which is provided with an opening, and a closed secondary battery using the above mentioned safety valve assemblage.
    • 本发明的目的是提供一种具有铅帽的防爆安全阀组件,其允许在诸如精密加工和定位的过程中的一些制造工时被删除,因为铅帽与 一种防爆安全阀,用于在电池中提供电流回路,以代替需要这种精密加工和定位操作的铅板或导线组成的常规电路,并提供使用上述安全性的封闭二次电池 阀组合。 一种用于封闭二次电池的防爆安全阀组件,包括容纳在所述外部容器中的外容器,由正极,负极和隔板组成的电极元件,其中所述安全阀组件被密封地固定 通过与封闭盖一体形成的绝缘垫片,连接到所述外部容器的开口端部,并且由防爆安全阀元件,无芯圆形绝缘体和由金属基底和金属形成的引线盖组成 箔片层压到基本上其中心设置有开口的金属基板上,并且使用上述安全阀组件封闭二次电池。
    • 4. 发明授权
    • Closed battery and closing member
    • 闭合电池和关闭件
    • US06423440B1
    • 2002-07-23
    • US09436488
    • 1999-11-09
    • Akiyoshi TakadaKinji SaijoKazuo YoshidaNobuyuki YoshimotoYoshihiko Isobe
    • Akiyoshi TakadaKinji SaijoKazuo YoshidaNobuyuki YoshimotoYoshihiko Isobe
    • H01M212
    • H01M2/345H01M2/1241H01M2/34
    • The object of the present invention is to provide a closed battery capable of rapidly releasing the internal pressure thereof and at the same time disconnecting the current to effectively prevent itself from temperature rising and exploding so that in such a completely closed battery it may assure the safety and reliability thereof, when the internal pressure is elevated due to short circuit, overcharge, reverse charge, or the like. A valve element 5 is provided with a slit 3 between the circumference thereof and a metal substrate 1. When the internal pressure of a battery is elevated, the valve element 5 is smoothly raised up together with a metal foil 2 from a bending fulcrum portion 4 to thereby cut a lead wire 6 or permit a braze portion 8 to detach from the lead wire 6, thus disconnecting the current reliably. Then, the metal foil which usually closes the slit formed around the circumference of the valve element 5 is allowed to burst stably and accurately at a prescribed pressure to thereby form a valve opening portion 7 so that the internal gas of the battery can be discharged.
    • 本发明的目的是提供一种能够快速释放其内部压力并且同时断开电流以有效防止其升高和爆炸的封闭电池,使得在这种完全闭合的电池中可确保安全性 当内部压力由于短路,过充电,反向充电等而升高时的可靠性。 阀元件5在其周边和金属基板1之间设置有狭缝3。当电池的内部压力升高时,阀元件5与金属箔2一起从弯曲支点部分4平滑地升起 从而切断引线6,或者使钎焊部8与引线6分离,从而可靠地断开电流。 然后,通过闭合形成在阀体5的周围的狭缝的金属箔,能够在规定的压力下稳定而准确地突出,从而形成阀开口部7,从而能够排出电池的内部气体。
    • 5. 发明授权
    • Hermetically sealed cell and sealing body
    • 密封电池和密封体
    • US06303246B1
    • 2001-10-16
    • US09423433
    • 2000-01-14
    • Akiyoshi TakadaKinji SaijoKazuo YoshidaNobuyuki YoshimotoYoshihiko Isobe
    • Akiyoshi TakadaKinji SaijoKazuo YoshidaNobuyuki YoshimotoYoshihiko Isobe
    • H01M212
    • H01M2/345H01M2/1241H01M2200/20
    • The object of the present invention is to provide a closed battery capable of rapidly releasing the internal pressure thereof and at the same time disconnecting the current to effectively prevent itself from temperature rising and explosion so that it may assure the safety and reliability thereof, when the internal pressure is elevated due to short circuit, overcharge, reverse charge, or the like in such a completely closed battery. The formation of a valve element 5 whose center is eccentric to the center of a metal substrate 1 produces a slit 3 having a large width portion around the circumference of a valve element 5. When the internal pressure of a battery is elevated, the valve element 5 is smoothly raised up together with a metal foil 2 from the bending fulcrum portion 4 to thereby cut a lead wire 6 or permit a braze portion 8 to detach from the lead wire 6, thus reliably disconnecting the current. Then, the metal foil is allowed to burst stably and accurately at a prescribed pressure to thereby form a valve opening portion 7 so that the internal gas of the battery can be discharged. Thus, the battery can previously be prevented from exploding.
    • 本发明的目的是提供一种能够快速释放其内部压力并且同时断开电流以有效地防止其升温和爆炸的封闭电池,从而可以确保其安全性和可靠性, 在这种完全封闭的电池中,内部压力由于短路,过充电,反向充电等而升高。 中心偏心于金属基板1的中心的阀元件5的形成产生了围绕阀元件5的圆周具有大的宽度部分的狭缝3.当电池的内部压力升高时,阀元件 5从弯曲支点部4与金属箔2一起平滑地升起,从而切断引线6,或者使钎焊部8与引线6脱离,从而可靠地断开电流。 然后,允许金属箔以规定的压力稳定且准确地爆裂,从而形成阀开口部7,使得电池的内部气体能够排出。 因此,可以预先防止电池爆炸。