Abstract: An electrolyte solution proposed for double layer capacitors contains at least one conducting salt comprising a cation having a maximum diameter<9.20 Á which additionally comprises substituents on the central atom which are not all the same and further contains at least one solvent comprising a functional group selected from lactones and nitrites. Such electrolyte solutions are superior to conventional electrolyte solutions at low temperatures when acetonitrile is the solvent, so that double layer capacitors provided with electrolyte solutions according to the invention have improved electrical properties at low temperatures.

Abstract: A double-layer capacitor includes a first electrode having a first polarity, a second electrode having a second polarity, the first polarity being different from the second polarity, and an electrolyte that is in contact with the first electrode and the second electrode. The first electrode has a first charge of the first polarity and the second electrode has a second charge of the second polarity, and maximum values of the first charge and the second charge are substantially equal.

Abstract: The invention describes a method and a device for introducing volatile liquids into housings of electrical components, in particular of passive electrical components or of electrochemical cells, and for closing the housings. The method can be carried out using an evacuable chamber, a conveyor device for conveying the components, a gas pressure device for generating a gas pressure atmosphere in the chamber, a filling device for introducing a volatile liquid into a component, a closing device for closing the component, and using a programmable sequence control means, which controls the conveyor device, the gas pressure device, the filling device and/or the closing device in such a way that these devices interact in a predetermined manner.

Abstract: The invention describes a method and a device for introducing volatile liquids into housings of electrical components, in particular of passive electrical components or of electrochemical cells, and for closing the housings. The method can be carried out using an evacuable chamber (1), a conveyor device (2) for conveying the components (4), a gas pressure device (9, 12, 13, 14) for generating a gas pressure atmosphere in the chamber, a filling device (5, 8, 11, 15) for introducing a volatile liquid into a component (4), a closing device (6, 17) for closing the component (4), and using a programmable sequence control means (10), which controls the conveyor device (2), the gas pressure device (9, 12, 13, 14), the filling device (5, 8, 11, 15) and/or the closing device (6) in such a way that these devices interact in a predetermined manner.

Abstract: The present invention relates to an electrode (1) for an electrochemical cell having a liquid electrolyte (3), containing channels (2), into which an electrolyte liquid may flow. The electrode (1) has the advantage that the impregnation time of the electrochemical cell may be reduced.

Abstract: What is proposed is a double-layer capacitor with at least a first and a second electrode, wherein the maximum charges of the two electrodes are matched. In such a double-layer capacitor according to the invention, the amount of material used per maximum storable electric charge and energy is minimal.

Abstract: An electrolyte solution for electrochemical cells having a high boiling point >86° C. at 1 bar and a high conductivity >40 mS/cm at 25° C. is proposed that comprises not only acetonitrile with a proportion of 40-90 wt.-% of the solvent weight as a first solvent (component A) but also at least a second electrochemically stable solvent having a boiling point >120° C. at 1 bar, a dielectric constant >10 at 25° C., and a viscosity <6 mPas at 25° C., as well as at least one conductive salt as component C). Such electrolyte solutions according to the invention demonstrate high conductivity values that are comparable to those of electrolyte solutions that use acetonitrile as the sole solvent. At the same time, however, because of component B) they also demonstrate elevated boiling points.

Abstract: Low-flammability electrolyte solutions with flash points higher than 76° C. are proposed, which contain at least one conducting salt that is dissolved in a solvent mixture of at least one high-polarity component and at least one low-flammability, low-viscosity carbamate component.

Abstract: The invention describes a method and a device for introducing volatile liquids into housings of electrical components, in particular of passive electrical components or of electrochemical cells, and for closing the housings. The method can be carried out using an evacuable chamber (1), a conveyor device (2) for conveying the components (4), a gas pressure device (9, 12, 13, 14) for generating a gas pressure atmosphere in the chamber, a filling device (5, 8, 11, 15) for introducing a volatile liquid into a component (4), a closing device (6, 17) for closing the component (4), and using a programmable sequence control means (10), which controls the conveyor device (2), the gas pressure device (9, 12, 13, 14), the filling device (5, 8, 11, 15) and/or the closing device (6) in such a way that these devices interact in a predetermined manner.

Abstract: Electrolyte solutions were suggested for electrochemical cells, for example for double-layer capacitors, which showed conductivities of more than 20 mS/cm at 25° C., at least comprising of a primary salt, which is released in a solvent alloy of “A” at least a solvent of high polarity and “B” at least a non-toxic solvent of low viscosity. Because of the low or non-availability of parts of acetonitrile, the electrolyte solutions are not in danger of a release of hydrogen cyanide if fire breaks out.