Alloyed and dense anode sheet with local stress relaxation
    45.
    发明授权
    Alloyed and dense anode sheet with local stress relaxation 失效
    具有局部应力松弛的合金和致密阳极片

    公开(公告)号:US06265099B1

    公开(公告)日:2001-07-24

    申请号:US09058895

    申请日:1998-04-13

    IPC分类号: H01M612

    摘要: An electrochemical generator comprising thin films including a positive electrode and its collector, and a sheet of a host metal intended to later on constitute a negative electrode, as well as an electrolyte which is conductive towards alkaline ions and also a source of alkali ions. The sheet of the host metal has voids whose quantity and arrangement are capable of locally absorbing any lateral expansion of the sheet of host metal and thereby substantially preventing all cumulative change in the plane of the sheet of host metal when there is an initial formation of alloy in the sheet between the host metal and an alkali metal which is brought about by the alkaline ions. A method of manufacturing such a generator is also described.

    摘要翻译: 一种电化学发生器,其包括包括正极及其集电体的薄膜和旨在稍后构成负极的主体金属片以及对碱性离子和碱离子源导电的电解质。 主体金属片具有空隙,其数量和布置能够局部地吸收主体金属片的任何横向膨胀,从而基本上防止当初始形成合金时主体金属片的平面的所有累积变化 在主体金属和由碱性离子引起的碱金属之间的片材中。 还描述了制造这种发生器的方法。

    Rechargeable lithium anode for polymer electrolyte battery
    47.
    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

    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。

    Collector-electrodes assemblies for thin film generators
    49.
    发明授权
    Collector-electrodes assemblies for thin film generators 失效
    用于薄膜发生器的集电极 - 电极组件

    公开(公告)号:US5521028A

    公开(公告)日:1996-05-28

    申请号:US418472

    申请日:1995-04-07

    摘要: Metallization by deposit under vacuum of metal on a face of a support film of synthetic resin at a thickness of 0.005 to 0.1 micron, followed by the electrochemical deposit of an additional metallic layer, whose thickness is between 0.1 and 4 microns. A coating of an electrode of a generator is then applied on the surface of the collector thus prepared. The assembly is characterized by the adhesion of its components and its facility of mechanized handling during the steps of assembling the complete generator.

    摘要翻译: 金属化在金属真空下沉积在合成树脂的支撑膜的表面上,厚度为0.005至0.1微米,随后电镀沉积厚度为0.1至4微米的附加金属层。 然后将发生器电极的涂层施加到如此制备的收集器的表面上。 该组件的特征在于在组装整个发电机的步骤期间其部件的粘附及其机械化处理的设备。