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    Current interrupter for electrochemical cells
    2.
    发明授权
    Current interrupter for electrochemical cells 失效
    电化学电池的断流器

    公开(公告)号：US5998051A

    公开(公告)日：1999-12-07

    申请号：US965248

    申请日：1997-11-06

    申请人： Jeffrey Poirier ,  Paul Cheeseman ,  Michael McDermott ,  Jane A. Blasi ,  Reynald Cantave ,  Jeffrey Hewes ,  Yelena Kouznetsova ,  Bhupendra Patel ,  Alex Kaplan ,  Viet Vu ,  William T. McHugh ,  Lucien P. Fontaine ,  Robert J. Pinault

    发明人： Jeffrey Poirier ,  Paul Cheeseman ,  Michael McDermott ,  Jane A. Blasi ,  Reynald Cantave ,  Jeffrey Hewes ,  Yelena Kouznetsova ,  Bhupendra Patel ,  Alex Kaplan ,  Viet Vu ,  William T. McHugh ,  Lucien P. Fontaine ,  Robert J. Pinault

    IPC分类号： H01H37/32 ,  H01H9/02 ,  H01H35/34 ,  H01H37/04 ,  H01H37/52 ,  H01H37/54 ,  H01M2/34 ,  H01M10/34 ,  H01M10/50 ,  H01M14/00

    CPC分类号： H01M2/348 ,  H01H37/043 ,  H01H9/0271 ,  H01M2/34 ,  H01H35/34 ,  H01H37/323 ,  H01H37/54

    摘要： A current interrupt assembly for electrochemical cells is disclosed. The current interrupter assembly may be a self-contained, sealed unit which may be separately inserted into the cell during cell construction. Several current interrupt assemblies may be inserted in the cell. The current interrupter assembly has particular utility for thin rechargeable cells and when inserted in the cell forms a portion of the electrical pathway between a cell electrode and corresponding terminal. The current interrupt mechanism comprises a thin thermally responsive member preferably comprising a disk of a shape memory metal alloy having a curved surface. The current interrupt mechanism may include a heat producing electrical resistance means, preferably a Zener diode in proximity to the thermally responsive member. When cell temperature exceeds a predetermined value the disk deflects to cause a break in the electrical pathway within the assembly. The assembly may include therein a flexible electrically conductive member which forms a part of the electrical pathway within the assembly and which is physically responsive to deflection of the thermally responsive member. The assembly may also include a pressure actuated diaphragm which may form a portion of the assembly housing. When the cell internal pressure exceeds a predetermined level the diaphragm deflects causing a break in the electrical pathway within the assembly, thereby shutting down the cell.

    摘要翻译： 公开了一种用于电化学电池的电流中断组件。 电流断路器组件可以是独立的密封单元，其可以在电池构造期间被单独插入电池。 可以在单元中插入几个当前中断组件。 电流断路器组件对于薄的可再充电电池具有特别的用途，并且当插入电池中时，形成电池电极和相应的端子之间的电路径的一部分。 当前的中断机构包括薄的热响应构件，优选地包括具有弯曲表面的形状记忆金属合金的盘。 当前的中断机制可以包括发热电阻装置，优选地在热响应部件附近的齐纳二极管。 当电池温度超过预定值时，磁盘偏转，从而导致组件内电路中断。 组件可以包括柔性导电构件，其形成组件内的电路径的一部分，并且其对热响应构件的偏转具有物理响应。 组件还可以包括可以形成组件壳体的一部分的压力致动隔膜。 当电池内部压力超过预定水平时，隔膜偏转导致组件内的电路中断，从而关闭电池。

    Current interrupter for electrochemical cells
    3.
    发明授权
    Current interrupter for electrochemical cells 失效
    电化学电池的断流器

    公开(公告)号：US5691073A

    公开(公告)日：1997-11-25

    申请号：US720616

    申请日：1996-10-02

    申请人： Viet H. Vu ,  Jane A. Blasi ,  Robert J. Pinault ,  William T. McHugh ,  Lucien P. Fontaine

    发明人： Viet H. Vu ,  Jane A. Blasi ,  Robert J. Pinault ,  William T. McHugh ,  Lucien P. Fontaine

    IPC分类号： H01H35/34 ,  H01H37/04 ,  H01H37/54 ,  H01H37/76 ,  H01M2/12 ,  H01M2/30 ,  H01M2/34 ,  H01M10/50

    CPC分类号： H01M2/345 ,  H01H37/043 ,  H01M2/1241 ,  H01M2/34 ,  H01M2/348 ,  H01H2037/769 ,  H01H35/34 ,  H01H37/54 ,  H01H37/764

    摘要： A current interrupt mechanism for electrochemical cells is disclosed. A thermally activated current interrupt mechanism is integrated into an end cap assembly for an electrochemical cell. The thermally responsive mechanism preferably includes a free floating bimetallic disk which deforms when exposed to elevated temperature causing a break in an electrical pathway within the end cap assembly. This prevents current from flowing through the cell and effectively shuts down an operating cell. Alternatively, the thermally responsive mechanism may include a meltable mass of material which melts when exposed to elevated temperature to break an electrical pathway within the end cap assembly. The end cap assembly may also include integrated therein a pressure responsive current interrupt mechanism. If the internal gas pressure within an operating cell exceeds a predetermined value, the pressure responsive mechanism activates to sever an electrical pathway within the end cap assembly to prevent current from passing through the cell. The pressure responsive mechanism may include a diaphragm which ruptures when there is extreme gas pressure buildup. Gas is allowed to escape from the cell interior to the external environment through a series of vent apertures within the end cap assembly.

    摘要翻译： 公开了一种用于电化学电池的电流中断机制。 热激活电流中断机构被集成到用于电化学电池的端盖组件中。 热响应机构优选地包括自由浮动双金属盘，其在暴露于升高的温度时变形，导致端盖组件内的电路径中断。 这样可防止电流流过电池并有效地关闭工作电池。 或者，热响应机构可以包括可暴露于升高的温度时熔化的材料，以破坏端盖组件内的电路径。 端盖组件还可以包括其中压力响应电流中断机构。 如果操作单元内的内部气体压力超过预定值，则压力响应机构被激活以切断端盖组件内的电路径，以防止电流通过电池。 压力响应机构可以包括当存在极端气体压力积聚时破裂的隔膜。 允许气体通过端盖组件内的一系列通气孔从电池内部逸出到外部环境。

    Current interrupter for electrochemical cells
    5.
    发明授权
    Current interrupter for electrochemical cells 失效
    电化学电池的断流器

    公开(公告)号：US5750277A

    公开(公告)日：1998-05-12

    申请号：US720585

    申请日：1996-10-02

    申请人： Viet H. Vu ,  Lucien P. Fontaine ,  William T. McHugh ,  Robert J. Pinault ,  Jane A. Blasi ,  Steven K. Sullivan ,  Geoffrey J. Paquin ,  Stephen S. Johnson ,  Gary K. Maus ,  Lance E. Cambra

    发明人： Viet H. Vu ,  Lucien P. Fontaine ,  William T. McHugh ,  Robert J. Pinault ,  Jane A. Blasi ,  Steven K. Sullivan ,  Geoffrey J. Paquin ,  Stephen S. Johnson ,  Gary K. Maus ,  Lance E. Cambra

    IPC分类号： H01H35/34 ,  H01H37/04 ,  H01H37/54 ,  H01H37/76 ,  H01M2/12 ,  H01M2/34 ,  H01M10/50

    CPC分类号： H01M2/345 ,  H01H37/043 ,  H01M2/1241 ,  H01M2/34 ,  H01M2/348 ,  H01H2037/769 ,  H01H35/34 ,  H01H37/54 ,  H01H37/764

    摘要： A current interrupt mechanism for electrochemical cells is disclosed. A thermally activated current interrupt mechanism is integrated into an end cap assembly for an electrochemical cell. The thermally responsive mechanism preferably includes a free floating bimetallic disk which deforms when exposed to elevated temperature causing a break in an electrical pathway within the end cap assembly. This prevents current from flowing through the cell and effectively shuts down an operating cell. Alternatively, the thermally responsive mechanism may include a meltable mass of material which melts when exposed to elevated temperature to break an electrical pathway within the end cap assembly. The end cap assembly may also include integrated therein a pressure responsive current interrupt mechanism. If the internal gas pressure within an operating cell exceeds a predetermined value, the pressure responsive mechanism activates to sever an electrical pathway within the end cap assembly to prevent current from passing through the cell. The pressure responsive mechanism may include a diaphragm which ruptures when there is extreme gas pressure buildup. Gas is allowed to escape from the cell interior to the external environment through a series of vent apertures within the end cap assembly.

    摘要翻译： 公开了一种用于电化学电池的电流中断机制。 热激活电流中断机构被集成到用于电化学电池的端盖组件中。 热响应机构优选地包括自由浮动双金属盘，其在暴露于升高的温度时变形，导致端盖组件内的电路径中断。 这样可防止电流流过电池并有效地关闭工作电池。 或者，热响应机构可以包括可暴露于升高的温度时熔化的材料，以破坏端盖组件内的电路径。 端盖组件还可以包括其中压力响应电流中断机构。 如果操作单元内的内部气体压力超过预定值，则压力响应机构被激活以切断端盖组件内的电路径，以防止电流通过电池。 压力响应机构可以包括当存在极端气体压力积聚时破裂的隔膜。 允许气体通过端盖组件内的一系列通气孔从电池内部逸出到外部环境。