Electrical contact outlet for anodes
    1.
    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
    2.
    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。

    Rechargeable lithium anode for polymer electrolyte battery
    3.
    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。

    Electrolytic composition with polymer base for electrochemical generator
    6.
    发明授权
    Electrolytic composition with polymer base for electrochemical generator 失效
    电化学发生器用电解质组合物

    公开(公告)号:US06806002B2

    公开(公告)日:2004-10-19

    申请号:US09878356

    申请日:2001-06-12

    IPC分类号: H01M462

    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的粉末的复合电极,如果需要的话,电化学发生器的电子导电添加剂。 电解质组合物包括由聚醚和至少第二聚合物基质组成的宏观分离的第一聚合物基质,以及至少一种碱性盐以及极性非质子溶剂。聚合物基质能够被至少一种 的极性非质子溶剂。 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。

    Thin electrode supported on electronically conductive sheet and process
of manufacture
    7.
    发明授权
    Thin electrode supported on electronically conductive sheet and process of manufacture 失效
    电子导电板上支撑的薄电极和制造工艺

    公开(公告)号:US4911995A

    公开(公告)日:1990-03-27

    申请号:US242119

    申请日:1988-09-09

    摘要: Process of manufacturing thin electrodes, supported on a sheet substrate, the electrodes being made from an element selected form lithium, lithium alloy, or doped lithium, whose melting point does not differ from the melting point of lithium by +50.degree. C. and whose thickness is constant, from a roller of the sheet and a source of the element. According to the invention, there is provided a bath of the element in molten state, the sheet is continuously unrolled, a constant quantity of the molten element is continuously applied on one of the two faces of the sheet, so as to produce a film on the sheet, whose thickness is constant and between abouth 0.1 and about 40.mu. and whose surface is homogeneous and uniform. The process is carried out in such a manner that the molten element is prevented from solidifying while in contact with the sheet, and the solidification of the element on the sheet takes place after formation of the film on the sheet. Electrode made of a sheet coated with a layer of lithium whose thickness is 0.1 to 40.mu..

    摘要翻译: 制造薄片状电极的工序,由片状基板支撑,电极由选自锂,锂合金或掺杂锂的元素制成,其熔点与锂的熔点没有差异+50℃, 厚度是恒定的,来自片材的辊和元件的源。 根据本发明,提供了一种熔融状态的元件的熔池,片材被连续地展开,将一定量的熔融元件连续地施加在片材的两个面之一上,以便产生一个薄膜 该片材的厚度恒定并且在约0.1和约40μm之间并且其表面是均匀且均匀的。 该方法以使熔融元件在与片材接触的同时被固化而进行,并且在片材上形成膜之后,片材上的元素的固化发生。 由涂覆有厚度为0.1〜40μm的锂层的片材制成的电极。

    Thin electrode supported on electronically conductive sheet and process
of manufacture
    8.
    发明授权
    Thin electrode supported on electronically conductive sheet and process of manufacture 失效
    电子导电板上支撑的薄电极和制造工艺

    公开(公告)号:US4824746A

    公开(公告)日:1989-04-25

    申请号:US166980

    申请日:1988-03-11

    摘要: Process of manufacturing thin electrodes, supported on an electronically conductive sheet, the electrodes being made from an element selected from lithium, lithium alloy, or doped lithium, whose melting point does not differ from the melting point of lithium by .+-.50.degree. C. and whose thickness is constant, from a roller of the sheet and a source of the element. According to the invention, there is provided a bath of the element in molten state, the sheet is continuously unrolled, a constant quantity of the molten element is continuously applied on one of the two faces of the sheet, so as to produce a film on the sheet, whose thickness is constant and between about 0.1 and about 40.mu. and whose surface is homogeneous and uniform. The process is carried out in such a manner that the molten element is prevented from solidifying while in contact with the sheet, and the solidification of the element on the sheet takes place after formation of the film on the sheet. Electrode made of a sheet coated with a layer of lithium whose thickness is 0.1 to 40.mu..

    摘要翻译: 在电子导电片上制造薄电极的方法,电极由选自锂,锂合金或掺杂锂的元素制成,其熔点与锂的熔点没有差异+/- 50℃ 并且其厚度恒定,来自片材的辊和元件的源。 根据本发明,提供了一种熔融状态的元件的熔池,片材被连续地展开,将一定量的熔融元件连续地施加在片材的两个面之一上,以便产生一个膜 该片材的厚度恒定在约0.1至约40μm之间,其表面是均匀且均匀的。 该方法以使熔融元件在与片材接触的同时被固化而进行,并且在片材上形成膜之后,片材上的元素的固化发生。 由涂覆有厚度为0.1〜40μm的锂层的片材制成的电极。

    Method and device for detecting a gaseous anhydride in an oxygen bearing
gas
    9.
    发明授权
    Method and device for detecting a gaseous anhydride in an oxygen bearing gas 失效
    用于检测含氧气体中的气态酐的方法和装置

    公开(公告)号:US4295939A

    公开(公告)日:1981-10-20

    申请号:US98978

    申请日:1979-11-30

    CPC分类号: G01N27/417 G01N27/4074

    摘要: A method and a device for detecting a gaseous anhydride and measuring its concentration in an oxygen-bearing gas. The method comprises the following steps: (a) forming an electrolytic junction by contact between a first solid-electrolyte element containing oxyanions of the anhydride to be detected and a second, 0.sup.-- ion-conducting solid-electrolyte element such as stabilized zirconia; (b) bringing this electrolytic junction into contact with the gas containing the gaseous anhydride to be detected so as to form a triple junction; (c) creating at this triple junction a difference of potential measurable by means of two reference electrodes in contact with the first and second electrolyte elements respectively, by fixation of a constant potential in the vicinity of each of these reference electrodes, which themselves are spatially removed from the triple junction; (d) heating the triple junction to such a temperature that a logarithmic variation in the concentration of the anhydride to be detected produces a proportional, substantially linear variation in the difference of potential at the triple junction, this temperature being lower than the melting temperatures of the first and second electrolyte elements; and (e) measuring this difference of potential by means of a potentiometer connected to the reference electrodes so as to obtain a measurement of the concentration of the anhydride to be detected. This method and device may advantageously be used for detecting sulfur carbon anhydrides.

    摘要翻译: 一种用于检测气态酸酐并测量其在含氧气体中的浓度的方法和装置。 该方法包括以下步骤:(a)通过包含待检测的酸酐的含氧阴离子的第一固体电解质元件与稳定的氧化锆之类的第二种0-离子导电固体电解质元件之间的接触形成电解结; (b)使该电解结与待检测的含有气态酸酐的气体接触以形成三重结; (c)通过在这些参考电极中的每一个附近固定恒定电位,这两个参考电极本身在空间上,在该三重结点处产生可通过与第一和第二电解质元件接触的两个参考电极测量的电位差。 从三联结点移除; (d)将三重连接点加热到待检测的酸酐浓度的对数变化在三连接点处的电位差产生比例的,基本线性的变化,该温度低于 第一和第二电解质元件; 和(e)通过连接到参比电极的电位器来测量该电位差,从而获得待检测的酸酐浓度的测量值。 该方法和装置可有利地用于检测硫酸酐。