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    • 10. 发明申请
    • Safer high energy battery
    • 更安全的高能电池
    • US20080199764A1
    • 2008-08-21
    • US11408500
    • 2006-04-20
    • Richard K. HolmanAndrew L. Loxley
    • Richard K. HolmanAndrew L. Loxley
    • H01M10/42H01M4/50H01M4/52H01M4/62H01M10/44
    • H01M4/621H01M4/622H01M10/0525H01M10/4235
    • A lithium secondary cell includes a plurality of stacked layers. Each stacked layer includes a lithium-containing positive electrode in electronic contact with a positive electrode current collector, a negative electrode in electronic contact with a negative electrode current collector, a separator positioned between the positive electrode and the negative electrode, and an electrolyte in ionic contact with the positive and negative electrodes. The positive current collector is in electrical connection with an external circuit and has a total thickness of at least about 200 μm. The negative current collector is in electrical connection with an external circuit. The total cell polarization during a failure event reduces the rate of discharge such that catastrophic failure does not occur. Thus, the lithium secondary cell exhibits safer failure modes than conventional cells known in the art.
    • 锂二次电池包括多个堆叠层。 每个层叠层包括与正极集电体电子接触的含锂正极,与负极集电体电子接触的负极,位于正极和负极之间的隔膜,以及离子性电解质 与正极和负极接触。 正极集电器与外部电路电连接并且具有至少约200μm的总厚度。 负极集电器与外部电路电连接。 故障事件期间的总电池极化减少了放电速率,从而不会发生灾难性故障。 因此,锂二次电池表现出比本领域已知的常规电池更安全的故障模式。