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    • 2. 发明授权
    • Current interrupter for electrochemical cells
    • 电化学电池的断流器
    • US6083639A
    • 2000-07-04
    • US916627
    • 1997-08-22
    • William T. McHughViet H. VuLucien P. FontaineJane A. BlasiReynald Cantave
    • William T. McHughViet H. VuLucien P. FontaineJane A. BlasiReynald Cantave
    • H01H37/32H01H9/02H01H35/34H01H37/04H01H37/52H01H37/54H01M2/34H01M10/50H01M10/34
    • H01M2/348H01H37/043H01H9/0271H01M2/34H01H35/34H01H37/323H01H37/54
    • 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. 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.
    • 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。