Abstract: The invention relates to a solid ionic conductor for a rechargeable non-aqueous electrochemical battery cell having the stoichiometric formula K(ASXX?)p×q SO2, where K represents a cation from the group of the alkali metals with p=1, of the alkaline-earth metals with p=2 or of the zinc group with p=2, A represents an element from the third main group, S represents sulfur, selenium or tellurium, X and X? represent a halogen, and the numerical value q is greater than 0 and less than or equal to 100.

Abstract: An electrolyte for a rechargeable non-aqueous electrochemical battery cell having a negative electrode and a positive electrode is described. The electrolyte contains sulfur dioxide and comprises a conducting salt, and a battery cell therefore has almost no capacitance loss over the cycles. Furthermore, a corresponding battery cell and a method for producing the electrolyte are described.

Abstract: The invention relates to a solid ionic conductor for a rechargeable non-aqueous electrochemical battery cell having the stoichiometric formula K(ASXX?)p×q SO2, where K represents a cation from the group of the alkali metals with p=1, of the alkaline-earth metals with p=2 or of the zinc group with p=2, A represents an element from the third main group, S represents sulfur, selenium or tellurium, X and X? represent a halogen, and the numerical value q is greater than 0 and less than or equal to 100.

Abstract: An electrolyte for a rechargeable non-aqueous electrochemical battery cell having a negative electrode and a positive electrode is described. The electrolyte contains sulfur dioxide and comprises a conducting salt, and a battery cell therefore has almost no capacitance loss over the cycles. Furthermore, a corresponding battery cell and a method for producing the electrolyte are described.

Abstract: The invention relates to a rechargeable, non-aqueous electrochemical battery cell which has a negative electrode, a positive electrode and a sulfur dioxide-containing electrolyte.

Abstract: Rechargeable battery cell operable at normal temperature, with an SO.sub.2 based electrolyte system, a negative electrode and a positive electrode, wherein one of the electrodes has an electronically conductive discharge element. An improved cycle stability and consequently a longer useful lifetime is achieved in that, as a reaction protection material to protect the discharge element against unwanted reactions with constituents of the SO.sub.2 based electrolyte system, at least a surface layer of the electronically conductive discharge element contains an alloy of chrome with another metal and/or a protective metal, selected from rhodium, tungsten, rhenium, tantalum, platinum, iridium, osmium or technetium in pure form, as an alloy or as a constituent of a compound and/or a carbide, nitride or phosphide of titanium, nickel, cobalt, molybdenum, iron, vanadium, zirconium or manganese.

Abstract: Rechargeable electrochemical cell, with a negative electrode, which in charged state contains an active metal selected from the group of the alkaline metals, the alkaline-earth metals and the metals of the second subgroup of the periodic table of elements; an electrolyte solution based on sulfur dioxide; and a positive electrode containing the active metal, from where ions come out into the electrolyte solution during the charging process. A self discharge reaction takes place at the negative electrode, for which the sulfur dioxide of the an electrolyte solution reacts with the active metal of the negative electrode to form a poorly soluble compound. According to the invention, the electrochemical charge quantity of the sulfur dioxide in the cell, calculated with one faraday per mole sulfur dioxide, is smaller than the charge amount of the active metal which can be theoretically electrochemically accumulated in the positive electrode.

Abstract: Nonaqueous electrochemical cell (9) with a negative electrode (4), an electrolytic solution and a positive electrode (3). The operational safety is increased by the fact that the cell contains a salt (10) in solid state in the area of at least one of the two electrodes (3,4).

Abstract: An electrochromic unit (1) having an electrochemical cell with at least two electrodes (3, 4) applied to a carrier, an electrolyte (2) located between the electrodes (3, 4) and an electrochromic material (7), such as an electrochromic polymer, applied to one of the electrodes (3), is characterized by a proton exchange membrane (2) as a solid electrolyte and carrier for the bilaterally applied electrodes (3, 4), the electrochromic material (7) being positioned on the side of the electrode (3) carrying it remote from the membrane (2).

Abstract: A method is proposed for the contiuous determination of gaseous oxidation products from industrial process, drinking and/or waste water, particularly for determining the TOC value, at least the organically bound carbon contained in a test solution to be investigated being oxidatively transformed and the gaseous oxidation products are supplied to a measuring unit, where at least the organically bound carbon is detected, the test solution being continuously pumped into a microreactor, where it is heated to a predetermined temperature and the organic compounds in the test solution are continuously oxidatively transformed under a temperature and pressure increased in a defined manner.

Abstract: Electromechanical alkali metal cell with a positive electrode (6), which has a metal substrate (4) and an active mass (5) connected to the substrate, the active mass (5) containing a complex metal oxide with the general formula A.sub.x M.sub.y O.sub.z, in which A denotes the alkali metal, M a transition metal and O oxygen. With simple manufacture high long-term stability of such an electrode is achieved by the fact that the positive electrode (6) is a composite electrode, in which the active mass (5) is connected without an organic binder directly to the substrate (4), the active mass and its connection to the substrate being produced by heating an electrode base containing the transition metal M in contact with an inorganic compound of the alkali metal with conversion of a surface layer of the base with the alkali metal compound to the complex metal oxide (FIG. 4 ).

Abstract: A process for detecting nitrotoluenes, particularly trinitrotoluene, dinitrotoluene and derivatives of nitrotoluenes in soils, liquids and gases is proposed and a voltage is applied to an electrode which is in contact with an electrolytic solution having the substance to be tested, the voltage being reduced for producing a reduction reaction and increased for producing an oxidation reaction and the current intensity of at least a residual current and an anodic current maximum occurring is determined, particularly as a function of the voltage applied.

Abstract: For the continuous quantitative determination of volatile substances in lids, such as in particular halogenated hydrocarbons in process or waste waters, the invention proposes a corresponding method, according to which the liquid is led past a liquid-impermeable, but gas-permeable membrane and that the strippable substances in the liquid in their gas phase pass through the membrane and lead same through a measuring cell. An apparatus for performing the method is characterized by a flow chamber provided with a liquid-impermeable, but gas-permeable membrane for the liquids to be investigated and by a measuring cell for the substances to be investigated located on the membrane side remote from the flow chamber.

Abstract: A non-aqueous rechargeable electrochemical cell is disclosed, wherein the cell includes a negative electrode a positive electrode and an electrolyte solution into which the electrodes are immersed. The negative electrode is made of lithium, and the positive electrode contains as the active material lithium cobalt oxide. The electrolyte solution is a solution of a lithium salt with an anion of a group 3A element halide in sulfur dioxide.The cell of the present invention has a long cycle life and excellent electrical characteristics.

Abstract: The brake block has incorporated means such as strain gauges for measuring dynamic brake forces in two normal coordinate directions.