Alloyed and dense anode sheet with local stress relaxation
    62.
    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
    64.
    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
    66.
    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。

    Process for preparing alloyed negative electrodes
    69.
    发明授权
    Process for preparing alloyed negative electrodes 失效
    制备合金化负极的方法

    公开(公告)号:US4690840A

    公开(公告)日:1987-09-01

    申请号:US719978

    申请日:1985-04-04

    摘要: The disclosure describes a method for the preparation of metallic alloys containing an alkali or alkali-earth metal, such as lithium, and a host metal, such as aluminum. Initially, an active organic solution of the alkali or the alkali-earth metal is prepared, and a source of the alkali or alkali-earth metal which are both brought together with one another. On the other hand, a metallic structure containing the host metal is prepared, the metallic structure is brought together with the organic solution which is kept in touch with the source of metal until there is formed an alloy of the host metal and of the alkali or alkali-earth metal with the metallic structure, and the alloy possesses an activity which is determined by that of the organic solution. The organic solution then acts as transfer agent of the alkali or alkali-earth metal towards the host metallic structure. To prepare a negative electrode, the alloy is brought together with an electrolyte, such as a thin polymeric film. The disclosure also describes the electrodes as well as the electrochemical generators produced by using these electrodes. Considerably improved properties of cycling are obtained.

    摘要翻译: 本公开内容描述了一种用于制备含有碱金属或碱土金属如锂的金属合金的方法以及诸如铝的主体金属。 首先,制备碱金属或碱土金属的活性有机溶液,并且将碱金属或碱土金属的源彼此并置在一起。 另一方面,制备含有主体金属的金属结构体,将金属结构与与金属源保持接触的有机溶液一起放置,直至形成了主体金属和碱的合金,或 具有金属结构的碱土金属,并且该合金具有由有机溶液确定的活性。 然后有机溶液作为碱金属或碱土金属的转移剂朝向主体金属结构。 为了制备负极,将该合金与诸如薄的聚合物膜的电解质结合在一起。 本公开还描述了使用这些电极产生的电极以及电化学发生器。 获得了显着提高的循环性能。

    Kinetic wheel arrangement incorporating magnetic suspension provided
with means for caging its rotor
    70.
    发明授权
    Kinetic wheel arrangement incorporating magnetic suspension provided with means for caging its rotor 失效
    具有磁悬浮的动力轮装置,提供有用于笼罩其转子的装置

    公开(公告)号:US4566740A

    公开(公告)日:1986-01-28

    申请号:US629215

    申请日:1984-07-09

    摘要: The present invention relates to a kinetic wheel arrangement comprising a stator, a rotor and a magnetic suspension, wherein said rotor comprises a central recess about said axis of rotation; there is disposed in said central recess of the rotor a pressure system provided with a screw which is connected to the stator and of which the axis merges with said axis of rotation of the rotor, this pressure system being adapted to take a first position for which said rotor is free to rotate about its axis of rotation while being suspended by its magnetic suspension, and a second position for which it presses said rotor against said stator to immobilize it; and remotely-controlled means are provided to cut said screw between said stator and said rotor. The invention is particularly applicable to the caging of the rotor in phases during which the kinetic wheel arrangement undergoes considerable mechanical stresses.

    摘要翻译: 本发明涉及包括定子,转子和磁悬浮液的动力轮装置,其中所述转子包括围绕所述旋转轴线的中心凹槽; 设置在转子的所述中央凹部中的压力系统设置有螺钉,该螺杆连接到定子并且轴线与转子的旋转轴线合流,该压力系统适于采取第一位置, 所述转子围绕其旋转轴线自由旋转,同时由其磁悬浮悬挂;以及第二位置,其将所述转子压靠所述定子以将其固定; 并且提供远程控制装置以在所述定子和所述转子之间切割所述螺钉。 本发明特别适用于在转子的笼中,其中动轮装置经历相当大的机械应力。