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    Rechargeable lithium anode for polymer electrolyte battery
    5.
    发明授权
    Rechargeable lithium anode for polymer electrolyte battery 失效
    用于聚合物电解质电池的可充电锂阳极

    公开(公告)号：US6007935A

    公开(公告)日：1999-12-28

    申请号：US844858

    申请日：1997-04-23

    申请人： Michel Gauthier ,  Andre Belanger ,  Alain Vallee

    发明人： Michel Gauthier ,  Andre Belanger ,  Alain Vallee

    IPC分类号： H01M10/0565 ,  H01M2/16 ,  H01M4/02 ,  H01M4/134 ,  H01M10/052 ,  H01M10/40

    CPC分类号： H01M4/381 ,  H01M4/382 ,  H01M4/40 ,  H01M10/052 ,  H01M2300/0065 ,  H01M4/405 ,  H01M6/40 ,  Y02E60/122

    摘要： Rechargeable generator consisting of an anode of an alkali metal or a malleable alkali alloy, at least one polymer electrolyte which is conductive with respect to alkali cations and acts as separator, as well as at least one cathode which is reversible to cations of alkali metal and its current collector. The anode comprises a thin metallic sheet, which includes at the surface thereof a passivation film SEI capable of limiting reaction between the metal and the polymer electrolyte and to exchange lithium ions. The polymer electrolyte comprises a homogeneous separator which is capable of transmitting a pressure on the anode to resist against the dendridic strain of the metal of the anode by undergoing a rate of deformation lower than 35% of its thickness. The polymer electrolyte of the separator, contains a maximum amount of species which are reactive towards lithium and which can accumulate at the surface of the anode to permit a preservation of the quality of the ionic exchanges at the interface of the anode and electrolyte and finally, the combination of anode, electrolyte, cathode and collector is maintained under a mechanical strain which is sufficient to ensure that the separator confines the anode sheet in place to preserve the integrity of the lithium-electrolyte interface during consecutive cycles of dissolution/plating.

    摘要翻译： 由碱金属或可延展的碱金属的阳极组成的可充电发电机，至少一种相对于碱性阳离子导电并作为隔离物的聚合物电解质，以及至少一个可碱性金属阳离子的阴极， 它的电流收集器。 阳极包括薄金属片，其表面上包括能够限制金属和聚合物电解质之间的反应并交换锂离子的钝化膜SEI。 聚合物电解质包括均匀的隔膜，其能够通过经历低于其厚度的35％的变形速率来传递阳极上的压力以抵抗阳极金属的树枝状应变。 隔板的聚合物电解质包含最大量的对锂具有反应性的物质，并且可以积聚在阳极的表面以允许在阳极和电解质的界面处保持离子交换的质量，最后， 阳极，电解质，阴极和集电器的组合保持在足够的机械应变下，该机械应变足以确保隔板将阳极片限制在适当位置，以在连续的溶解/电镀循环期间保持锂电解质界面的完整性。