Current collectors for safe electrochemical generators, process of
preparation and generators obtained thereby
    1.
    发明授权
    Current collectors for safe electrochemical generators, process of preparation and generators obtained thereby 失效
    用于安全电化学发生器的集电器,制备工艺和由此获得的发电机

    公开(公告)号:US5415948A

    公开(公告)日:1995-05-16

    申请号:US945870

    申请日:1992-09-17

    摘要: Self-protecting current collector, with lateral collection an insulating plastic support film having a thickness between about 1 and 30 microns, and a conductive metallic coating, of a thickness lower than about 10 microns, adhering to at least one face of the insulating support film, compatible with the corresponding material of the electrode of the generator, and wherein its conductive surface is divided into a plurality of adjacent distinct areas, each area being electrically insulated by means of non-conductive borders except for at least one conductive bridge of small cross-section connected to a lateral common conductive margin enabling a lateral collection of the entire distinct areas; the nature and electrical resistance of the conductive bridges enabling on the one hand, passage of currents corresponding to maximum currents provided for each of the individual collection areas of the generator to be produced, and limiting on the other hand, in case of an accidental short-circuit inside an area, the maximum current received by this area originating from the entire areas of the generator.

    摘要翻译: 自保护集电器,其侧向收集具有约1至30微米厚度的绝缘塑料支撑膜和厚度低于约10微米的导电金属涂层,粘附至绝缘支撑膜的至少一个表面 与发生器的电极的相应材料兼容,并且其中其导电表面被分成多个相邻的不同区域,每个区域通过非导电边界电绝缘,除了至少一个小十字形导电桥 连接到侧向公共导电边缘,使得能够横向收集整个不同的区域; 导电桥的性质和电阻一方面能够使对应于要产生的发电机的各个收集区域的每一个提供的最大电流的电流通过,另一方面限制另一方面,在意外短路的情况下 - 一个区域内的电路,由该区域接收的最大电流来自发生器的整个区域。

    Collector-electrodes assemblies for thin film generators
    2.
    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。

    Electrical contact outlet for anodes
    3.
    发明授权
    Electrical contact outlet for anodes 失效
    阳极电接点

    公开(公告)号:US5415954A

    公开(公告)日:1995-05-16

    申请号:US52833

    申请日:1993-04-27

    摘要: Electrical contact outlet for an anode sheet of a lithium generator with polymer electrolyte, consisting of one or more multilayer electrochemical cells. The cell comprises at least one lithium base sheet having a thickness between about 1 and 50 microns to constitute the anode and its collector and additionally includes a cathode and its collector as well as the polymer electrolyte. A lateral end of the anode sheet extends beyond corresponding ends of the cathode and the collector to constitute a projecting zone. A metallic layer consisting of at least one rigid metal which is compatible with lithium is in electrical contact with the lateral end of the anode sheet but without electronic contact with the other components of the cell. The metallic layer constitutes the external terminal of the generator when the latter is in non-finished condition. According to a variant, a conductive and cohesive intermediate metallic zone, which consists of lithium or lithium rich ductile alloys is in intimate contact with the lateral end of the anode sheet and the metallic layer mentioned above is therefore in electrical contact with the lateral end of the anode sheet by means of the intermediate zone of lithium. Generators provided with such contact outlet as well as a process for the preparation of these contact outlets are described.

    摘要翻译: 具有聚合物电解质的锂发生器的阳极片的电接触出口,由一个或多个多层电化学电池组成。 电池包括至少一个厚度在约1微米至50微米之间的锂基片,以构成阳极及其集电体,另外还包括阴极及其集电体以及聚合物电解质。 阳极片的横向端部延伸超过阴极和集电器的相应端部以构成突出区域。 由与锂相容的至少一种刚性金属组成的金属层与阳极片的侧端电接触,但与电池的其它部件没有电接触。 当后者处于未完成状态时,金属层构成发电机的外部端子。 根据一个变型,由富含锂或锂的延性合金构成的导电和内聚中间金属区域与阳极片的侧端紧密接触,因此上述金属层与外部端部电接触 通过锂的中间区形成阳极片。 描述了提供有这种接触插座的发电机以及用于制备这些接触插座的工艺。

    Electrolytic composition with polymer base for electrochemical generator
    9.
    发明授权
    Electrolytic composition with polymer base for electrochemical generator 有权
    电化学发生器用电解质组合物

    公开(公告)号:US06280882B1

    公开(公告)日:2001-08-28

    申请号:US09142055

    申请日:1998-12-14

    IPC分类号: H01M614

    摘要: The invention concerns an aprotic electrolytic composition located in the separator and in at least one composite electrode containing a powder of an active electrode material, and if necessary an electronic conduction additive of an electrochemical generator The electrolytic composition comprises a first polymer matrix consisting of a polyether and at least a second polymer matrix, macroscopically separated, and also at least an alkaline salt as well as a polar aprotic solvent: The polymer matrices are capable of being swollen by at least one of the polar aprotic solvents. The solvent or mixture of solvents is unevenly distributed between the polymer matrices. The invention also concerns an electrochemical generator comprising a negative electrode and positive electrode reversible to alkaline ions and a separator with polymer electrolyte, the electrolytic component of which is the composition described above. The invention further concerns the manufacture in two or three steps of a sub-assembly of an electrochemical generator by coating an electrode support with a composite electrode containing the second matrix, followed by a surface coating on the electrode resulting from the preceding step with a solution containing the first polymer matrix so as to form the separator wholly or partly.

    摘要翻译: 本发明涉及位于分离器中的非质子电解组合物和至少一个含有活性电极材料粉末的复合电极,如果需要的话,电化学发生器的电子导电添加剂电解组合物包括由聚醚 和至少第二聚合物基质,宏观上分离的,以及至少一种碱性盐以及极性非质子传递溶剂。聚合物基质能够被至少一种极性非质子传递溶剂溶胀。 溶剂或溶剂混合物不均匀地分布在聚合物基质之间。 本发明还涉及一种电化学发生器,其包括负极和碱性离子可逆的正极和具有聚合物电解质的隔膜,其电解组分是上述组成。 本发明还涉及通过用包含第二基质的复合电极涂覆电极载体,然后在前述步骤中由溶液形成的电极上的表面涂层的方法,在电化学发生器的子组件的两个或三个步骤中制造两个或三个步骤 含有第一聚合物基质以全部或部分形成隔膜。