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    • 6. 发明公开
    • Enclosed cell having safety valve mechanism and fabricating method of the same
    • Geschlossene Zelle mit Sicherheitsventilanordnung und Verfahren zu ihrer Herstellung。
    • EP0246590A2
    • 1987-11-25
    • EP87107184.1
    • 1987-05-18
    • SANYO ELECTRIC CO., LTD.
    • Hara, MitsunoriNagao, NobuhiroAmazutsumi, TooruUrushihara, Kanji
    • H01M2/12H01M2/06H01M2/08
    • H01M2/1282H01M2/06H01M2/08H01M2/1235
    • The present invention relates an enclosed cell and fabricating methods of the cell which has a safety valve mechanism for releasing gas from inside the cell when an internal pressure of the cell rises to an excessive degree. The characterizing feature of the invention resides in the use of a resin packing as sealing element, junctions between the resin packing and a metal lid and between the resin packing and a polar terminal being closed tight by thermal fusion. This construction assures reliable sealing in normal state, and permits the packing to break with an excessive rise in the internal pressure thereby to release gas from inside the cell. The cell of this invention is readily fabricated by injection molding or by a hot press process. Therefore, the enclosed cell according to this invention is fabricated very rationally and inexpensively, assures excellent sealing and safety, and has wide application.
    • 本发明涉及电池的封闭电池和制造方法,该电池具有当电池的内部压力升高到过高时从电池内释放气体的安全阀机构。 本发明的特征在于使用树脂填料作为密封元件,树脂填料和金属盖之间以及树脂填料和极性端子之间的接合部通过热熔接而被密封。 这种结构确保了在正常状态下的可靠的密封,并且允许填料以内部压力的过度上升中断,从而从气室内释放气体。 本发明的电池可以通过注射成型或热压法容易地制造。 因此,根据本发明的封闭电池非常合理和廉价地制造,确保了优异的密封和安全性,并且具有广泛的应用。