Abstract: A method for producing a solid electrolyte membrane (3) or an anode unit for a solid-state battery, in which method a powder mixture consisting of a solid electrolyte material and polytetrafluoroethylene is produced for the solid electrolyte membrane (3) and a powder mixture consisting of an electrode material, a solid electrolyte material, an electrically conductive conduction additive and polytetrafluoroethylene is produced for the anode unit, at least partially fibrillated polytetrafluoroethylene is formed by applying shear forces to the powder mixture, and the powder mixture is shaped into a flexible composite layer. The powder mixture has at most 1 wt. % polytetrafluoroethylene.

Abstract: The invention relates to a method for producing a dry film (3), wherein a dry powder mixture is processed into the dry film (3) by a rolling device comprising a first roller (2a) and a second roller (2b). The first roller (2a) has a higher circumferential rotational speed than the second roller (2b), and the dry film (3) is placed on the first roller (2a).

Abstract: A lithium sulfur battery with a low solvating electrolyte at an amount of less than 2 ?l per mg sulfur. The electrolyte comprises dioxolane and hexylmethylether, as well as a Li salt, for example LiTSFi. The electrolyte is free from lithium nitrate, LiNO3.

Abstract: The invention relates to an electrolyte, which is provided for an alkali-sulfur battery (e.g. for a Li—S battery). The electrolyte contains a non-polar, acyclic and non-fluorinated ether, a polar aprotic organic solvent, and a conducting salt for an alkali-sulfur battery. It has been found that, when such an electrolyte is used in an alkali-sulfur battery, a high-capacity, a low overvoltage, a high cycle stability, and a high Coulomb efficiency can be achieved in the alkali-sulfur battery and, in addition, as compared with an alkali-sulfur battery which contains a fluorinated ether in the electrolyte, a considerably improved gravimetric energy density is obtained. The invention further relates to a battery comprising the electrolyte according to the invention and to uses of the electrolyte according to the invention.

Abstract: The present invention relates to a method for producing a substrate (2) which is coated with an alkali metal (1), in which method a promoter layer (3) which is composed of a material which reacts with the alkali metal (1) by at least partial chemical reduction of the promoter layer (3) is applied to a surface of the substrate (2) and a surface of the promoter layer (3) is acted on by an alkali metal (1) and then the alkali metal (1) is converted into the solid phase and a coating containing the alkali metal is formed.

Abstract: A lithium sulfur battery with a low solvating electrolyte at an amount of less than 2 ?l per mg sulfur. The electrolyte comprises dioxolane and hexylmethylether, as well as a Li salt, for example LiTSFi. The electrolyte is free from lithium nitrate, LiNO3.

Abstract: The invention relates to a coating which has special absorption properties for electromagnetic radiation from the wavelength spectrum of sunlight and to a method for producing the coating and to its use. The coating is formed by a layer which is formed on the surface of a substrate or on a reflective layer formed on the surface of the substrate. Carbon nanotubes are contained in the layer. The proportion of carbon nanotubes contained per unit of area or unit of volume and/or the layer thickness of the layer is selected such that it absorbs electromagnetic radiation from the wavelength spectrum of sunlight at predefinable proportions and the proportion of electromagnetic radiation from the wavelength spectrum of a black radiator at a temperature greater than 50° C. which is emitted is very small.

Abstract: The invention relates to a cathode unit for an alkaline metal/sulphur battery, containing a cathode arrester, which comprises a carbon substrate, and an electrochemically active component, which is selected from sulphur or an alkaline metal sulphide and is in electrically conductive contact with the carbon substrate.

Abstract: The present invention relates to a process for producing a cathode foil of a lithium-containing battery, comprising: (i) provision of a dry, solvent-free composition which comprises polytetrafluoroethylene, an electrically conductive, electrochemically inactive carbon material and an electrochemically active cathode material, (ii) formation of at least partially fibrillated polytetrafluoroethylene by action of shear forces on the dry, solvent-free composition to give a fibrillated composition, (iii) forming of the fibrillated composition to give a cathode foil.

Abstract: A Li—S battery including a cathode and an anode and at least one of a lithium-containing liquid electrolyte, gel electrolyte, and solid electrolyte disposed between the cathode and the anode. The cathode includes at least one of an electrically conductive carbon material, an electrochemically active cathode material that comprises sulphur, and at least partially fibrillar plastic material. The anode includes a conducting substrate which is coated at least in regions with at least one of silicon and tin. A method for operation thereof.

Abstract: A Li—S battery including a cathode and an anode and at least one of a lithium-containing liquid electrolyte, gel electrolyte, and solid electrolyte disposed between the cathode and the anode. The cathode includes at least one of an electrically conductive carbon material, an electrochemically active cathode material that comprises sulphur, and at least partially fibrillar plastic material. The anode includes a conducting substrate which is coated at least in regions with at least one of silicon and tin. A method for operation thereof.

Abstract: An alkali-chalcogen battery that includes a cathode that includes at least one of at least one chalcogen and at least one alkali-chalcogen compound, and an anode. At least one of an alkali metal-containing liquid electrolyte, gel electrolyte and solid electrolyte is disposed between the anode and the cathode. Also, a cation-selective separator is disposed at least in regions between the anode and the cathode, the separator being permeable for alkali metal ions and impermeable for polychalcogenide ions (Zn2? with n?2, Z representing the chalcogen), and the separator having a maximum layer thickness of 30 ?m.

Abstract: The present invention relates to a process for producing a cathode foil of a lithium-containing battery, comprising: (i) provision of a dry, solvent-free composition which comprises polytetrafluoroethylene, an electrically conductive, electrochemically inactive carbon material and an electrochemically active cathode material, (ii) formation of at least partially fibrillated polytetrafluoroethylene by action of shear forces on the dry, solvent-free composition to give a fibrillated composition, (iii) forming of the fibrillated composition to give a cathode foil.

Abstract: The invention relates to a cathode unit for an alkaline metal/sulphur battery, containing a cathode arrester, which comprises a carbon substrate, and an electrochemically active component, which is selected from sulphur or an alkaline metal sulphide and is in electrically conductive contact with the carbon substrate.

Abstract: A method for manufacturing photocatalytically active titanium dioxide layers on substrate surfaces. The method reduces the effort for the manufacture of photocatalytically active titanium dioxide layers and increases the choice for the coating of suitable substrate materials. In the method, a titanium compound present in the gas phase and water vapor are directed to a preheated substrate by means of gas phase hydrolysis and a titanium dioxide layer is foamed on the surface of the substrate by chemical reaction. In this respect, the titanium compound and water vapor are supplied separately from one another so that a flow speed of at least 0.5 m/s is achieved and the time between the first contact of the two gases up to the impact on the surface of the substrate is kept lower than 0.05 s, and in this process the photocatalytically active titanium dioxide layer is formed on the substrate surface.

Abstract: The present invention relates to a cathode unit for an alkali metal-sulphur battery, comprising: a cathode collector comprising a metal substrate, carbon nanotubes which are fixed on the cathode collector and are in electrically conductive contact with the metal substrate, an electrochemically active component which is present on the surface of the carbon nanotubes and is selected from sulphur or an alkali metal sulphide.

Abstract: A method for manufacturing photocatalytically active titanium dioxide layers on substrate surfaces. The method reduces the effort for the manufacture of photocatalytically active titanium dioxide layers and increases the choice for the coating of suitable substrate materials. In the method, a titanium compound present in the gas phase and water vapor are directed to a preheated substrate by means of gas phase hydrolysis and a titanium dioxide layer is formed on the surface of the substrate by chemical reaction. In this respect, the titanium compound and water vapor are supplied separately from one another so that a flow speed of at least 0.5 m/s is achieved and the time between the first contact of the two gases up to the impact on the surface of the substrate is kept lower than 0.05 s, and in this process the photocatalytically active titanium dioxide layer is formed on the substrate surface.

Abstract: The invention relates to a transparent, luminescent plastic glass containing luminescent particles and to a method for producing the same. The glass hardly differs or differs only slightly in terms of transparency from pure plastic glass. In addition, said glass is easy to produce.

Abstract: A method for the production of plastics containing fillers is disclosed, in which a reactive precursor for the filler is mixed with the polymer precursor, the reactive precursor for the filler is converted into the filler and the polymer precursor is polymerized to form the plastic. The filler generated thus has a particle size in the nanometre range which are evenly distributed in the precursor and also in the finished plastic, such that the appearance of the plastic, for example, the transparency of the finished plastic, is not affected.