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    • 6. 发明专利
    • CLAD MATERIAL
    • MY118038A
    • 2004-08-30
    • MYPI9700534
    • 1997-02-14
    • TOYO KOHAN CO LTD
    • SAIJO KINJIYOSHIDA KAZUOYOSHIMOTO NOBUYUKIISOBE TAKEHIKO
    • H01M2/12B23K20/00B23K20/04
    • CLAD MATERIAL (19) COMPRISES A METAL SUBSTRATE (A) WHICH IS PROVIDED WITH A MULTIPLICITY OF PERFORATED OPENINGS (C) THEREIN AND A METAL FOIL (8) WHICH IS LAMINATED ON THE METAL SUBSTRATE TO CLOSE THE PERFORATED OPENINGS (C). TO PRODUCE SUCH A CLAD MATERIAL, AT LEAST ONE SURFACE OF THE METAL SUBSTRATE (A) AND CORRESPONDING ONE SURFACE OF THE METAL FOIL (8) ARE RESPECTIVELY SUBJECTED TO A DRY ETCHING AND THE METAL SUBSTRATE AND THE METAL FOIL ARE LAMINATED IN SUCH A MANNER THAT THE ETCHED SURFACES FACE EACH OTHER. ALTERNATELY, ONLY ONE SURFACE OF THE METAL SUBSTRATE (A) IS SUBJECTED TO A DRY ETCHING AND THE METAL SUBSTRATE (A) AND THE METAL FOIL (8) ARE LAMINATED IN SUCH A MANNER THAT THE ETCHED SURFACE OF THE METAL SUBSTRATE DEFINES A LAMINATING SURFACE. IT MAY BE POSSIBLE TO PROVIDE A NICKEL PLATING ON THE METAL SUBSTRATE (A) OR THE METAL FOIL (8). THE CLAD MATERIAL CAN BE EFFECTIVELY USED FOR PRODUCING SAFETY VALVE CHIPS WHICH RUPTURE ACCURATELY AT LOW PRESSURES WHICH FALL IN A STABLE PRESSURE RANGE ON A MASS PRODUCTION BASIS. (FIGURE 1 & 4)
    • 10. 发明专利
    • Hermetically sealed cell
    • AU6854698A
    • 1998-11-13
    • AU6854698
    • 1998-04-20
    • TOYO KOHAN CO LTDFUKUDA METAL FOIL POWDER
    • TAKADA AKIYOSHISAIJO KENJIYOSHIDA KAZUOYOSHIMOTO NOBUYUKIISOBE YOSHIHIKO
    • H01M2/12H01M2/34
    • 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.