Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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 ma

Abstract: Between the high electronic conduction structures of the multilayer assembly an electric voltage signal is applied of which at least one portion includes an alternating component which has an amplitude between 0.05 and 100 volts and a frequency lower than 5 kHz and preferably between 2 and 2000 Hz so as to generate within the multilayer assembly an alternating ion current susceptible of producing a heating of the ion conducting macromolecular material by Joule effect. Application to the heating of electrochemical current generators in thin layers with solid polymer electrolyte or to the surface heating of elements of various regular or irregular shapes of which the surface is coated with the multilayer assembly.

Abstract: Process for producing organic cation radicals using anodic oxidation of an organic molecule in an electrochemical cell containing two electrodes upon which opposite polarity may be established and a liquid electrolyte which is an ion conductive material comprising a salt in solution in a liquid consisting essentially of at least one polar aprotic solvent selected from the group consisting of linear ethers, cyclic ethers, esters, carbonates, lactones, nitrate derivatives, amides, sulfones and sulfolanes, wherein said salt is represented by one of the following formulas: ##STR1## wherein M is an alkaline or alkaline earth metal, a transition metal or a rare earth metal,RF and R'F are identical or different and each represent a perhalogen radical having from 1 to 12 carbon atoms,QF is a perfluorinated bivalent radical having from 2 to 6 carbon atoms.

Abstract: Ionically conductive material consisting essentially of a salt diluted in a liquid aprotic solvent. The salt is represented by one of the following formulas: ##STR1## where M is an alkaline or alkaline earth metal, a transition metal or a rare earth metal.

Abstract: The optical system, which is comprised of a thin layer of ion conducting, macromolecular material, or solid polymer electrolyte sandwiched between two electrodes presenting each a conducting deposition carried by a support plate such that at least one of the conductor depositions and the associated support plate are transparent, is heated by applying between the conductor depositions of said electrodes an electric voltage signal of which at least one portion includes an alternating component which has an amplitude between 0.05 and 100 volts and a frequency lower than 5 kHz and preferably between 2 and 2000 Hz so as to generate within said optical system an alternating ionic current susceptible of producing a heating of the ion conducting macromolecular material by Joule effect. The optical system to be heated, which may be an electrochromium device, may have particularly a glazing type structure or a mirror type structure.

Abstract: Electrochemical cells containing lithium and a solid polymer electrolyte in the form of thin films are produced by making multilayer assemblies from double-layer solid polymer electrolyte/composite positive electrode sub-assemblies which are subsequently associated with the other constituent layers of the cell so that the multilayer assembly so obtained comprises a layer of a metal of low ductility. Cells may be made from multilayer assemblies by stacking, rolling or bending techniques.

Abstract: An ionically conductive material useful in electrochemical generators is disclosed. This ionically material comprises a salt in solution in a solvent. The solvent comprises a sulfonated derivative of Formula (I):R.sub.1 R.sub.2 N--SO.sub.2 NR.sub.3 R.sub.4wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently a C.sub.1-10 alkyl group or a C.sub.1-10 oxaalkyl group.

Abstract: An electrochemical cell with an electrolyte of an ionically conductive material comprised of a salt diluted in a liquid solvent.

Abstract: 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.

Abstract: In order to assemble the components of an electrochemical generator using lithium, which are in the form of thin films and comprise a lithium- or lithium alloy-based negative electrode and a solid polymer electrolyte with conduction using the lithium ion, an intermediate assembly is used which consists of a thin film of lithium supported by a film of inert plastic with controlled adhesion to the lithium, as a precursor of the negative electrode. This intermediate assembly can be produced, inter alia, by rolling a sheet of lithium between two films of inert plastic.

Abstract: An ionically conductive material useful in electrochemical generators is disclosed. This ionically material comprises a salt in solution in a solvent. The solvent comprises a sulfonated derivative of Formula (I):R.sub.1 R.sub.2 N--SO.sub.2 NR.sub.3 R.sub.4wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently a C.sub.1-10 alkyl group or a C.sub.1-10 oxaalkyl group.

Abstract: 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.

Abstract: 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.

Abstract: Electrochemical generator, the electrolyte of which is made of a macromolecular material comprising a salt in solution and of which the positive electrode is a composite electrode which comprises as active material a metallic compound adapted to be reduced by the cation of the salt in solution by generating during this reduction new species which can include the zero oxidation degree metal, said generator being able to operate reversibly at ambient temperature.

Abstract: 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.

Abstract: Anode composition based on a mixture of plastic or elastomeric macromolecular material with ionic conduction, an alloy of lithium and particles of a carbon compound of the formula: Li.sub.x C where 0.ltoreq.x<0.3. Anodes so constituted, as well as electrochemical generators with solid electrolytes comprising these anodes. Better utilization of the lithium of the materials of the electrodes.

Abstract: A method of producing carbon-13 using CF.sub.2 HCl as the feedstock (substrate) material in which the CF.sub.2 HCl is enriched up to a first level of C-13 by I.R. laser photodissociation and then to 90-99% C-13 by a second exchange process. In the preferred arrangement the second stage is a chemical exchange process.