Abstract: Coolants with low electrical conductivity and corresponding coolant concentrates are useful for cooling systems of vehicles with electric engines, fuel cells, or hybrid engines with a combination of combustion engines with electric engines or a combination of combustion engines with fuel cells.

Abstract: Coolants with low electrical conductivity can be used in direct or indirect cooling of electronic devices. The coolant has at least one glycol, water, at least one azole derivative, at least one ester of orthosilicic acid or alkoxy alkylsilane, optionally at least one tertiary amine bearing at least one 2-hydroxyethyl- or 2-hydroxypropyl-group, optionally at least one monocarboxylic acid, optionally at least one silicophosphonate, and optionally at least one further coolant additive.

Abstract: Coolants with low electrical conductivity and the corresponding coolant concentrates are made. A method is developed for circulating the coolants in cooling systems of vehicles with electric engines, fuel cells or hybrid engines with a combination of combustion engines with electric engines or a combination of combustion engines with fuel cells.

Abstract: A lithium ion battery comprising (i) at least one anode, (ii) at least one cathode containing a cathode active material selected from lithium ion containing transition metal compounds having a content of Manganese of from 50 to 100 wt.

Abstract: The invention is aimed at combining dinitrile heterocyclic additives with fluoroethers additives for electrolyte compositions, electrolyte compositions containing the additives and electrochemical devices containing the additives. The electrolyte compositions are suitable for use in electrochemical devices such as lithium ion batteries.

Abstract: The present invention relates in a first aspect to a method for producing in the interior of a production equipment a dehydrated liquid mixture for use as a solvent for a conducting salt (e.g. LiPF6) wherein after cleaning the equipment with isopropyl alcohol and providing or preparing a liquid starting mixture in said interior of the production equipment both the isopropyl alcohol content in the mixture and the water content in the mixture is reduced by interaction with a zeolite molecular sieve.

Abstract: A mixture useful as an electrolyte in lithium ion batteries and use thereof are provided. Lithium ion batteries with good performance, especially good cyclability after prolonged operation are obtained. The mixture contains an aprotic organic solvent, a cyclic compound containing C1-C10-alkyl, C1-C10-alkoxy, C3-C10-cycloalkyl, benzyl or C6-C14-aryl, water, optionally an additive and a lithium salt.

Abstract: The present invention relates in a first aspect to a method for producing in the interior of a production equipment a dehydrated liquid mixture for use as a solvent for a conducting salt (e.g. LiPF6) wherein after cleaning the equipment with isopropyl alcohol and providing or preparing a liquid starting mixture in said interior of the production equipment both the isopropyl alcohol content in the mixture and the water content in the mixture is reduced by interaction with a zeolite molecular sieve.

Abstract: Method for producing a dehydrated liquid mixture comprising water in an amount of less than 20 ppm, for use as a solvent for a conducting salt, comprising or consisting of the following steps: —providing or preparing a liquid starting mixture comprising—a total amount of 90% by weight or more, based on the total amount of the liquid starting mixture, of compounds selected from the group of organic carbonates, acetic acid esters of C1 to C8 alcohols and butyric acid esters of C1 to C8 alcohols, wherein the total amount of acetic acid esters of C1 to C8 alcohols and butyric acid esters of C1 to C8 alcohols is in the range of from 0 to 45% by weight, based on the total amount of the liquid starting mixture, —water in a total amount of 3500 ppm to 20 ppm, based on the total amount of the liquid starting mixture, —optionally further constituents, —contacting the liquid starting mixture with an amount of a binderless zeolite molecular sieve such that the water content in the mixture is reduced to an amount of less

Abstract: The present invention relates to a process for the electrochemical fluorination of an organic compound, wherein a reaction solution comprising the organic compound and a fluorinating agent is subjected to electric current in an electrochemical fluorination cell.

Abstract: The present invention relates to a method for producing a dehydrated liquid mixture for use as a solvent for conducting salts (e.g. LiPF6) wherein the water content is reduced, starting from a liquid starting mixture comprising one, two, three or more organic carbonates in a total amount of 90% by weight or more, based on the total amount of the liquid starting mixture and one, two or more compounds selected from the group consisting of (a) acids with a pKa below 4 and (b) precursors releasing acids with a pKa below 4 in the liquid starting mixture by hydrolysis.

Abstract: The present invention relates to an electrolyte solution comprising at least one solvent as component A, at least one electrolyte as component B and from 0.1 to 20% by weight, based on the total electrolyte solution, of at least one heteroaromatic compound of the general formula (I) as component C, the use of such a compound in electrolyte solutions, the use of such an electrolyte solution in an electrochemical cell or for metal plating, and also electrochemical cells comprising a corresponding electrolyte solution.

Abstract: Electrochemical cells comprise (A) at least one cathode comprising at least one lithiated Mn-containing compound having an Mn content of from 60 to 80 mol %, based on transition metal in cathode (A), (B) at least one anode comprising carbon in electrically conductive form, (C) at least one electrolyte comprising (a) at least one aprotic organic solvent, (b) at least one lithium salt, and (c) at least one organic compound having at least one Si—N single bond per molecule.

Abstract: Process for coating plastics with metals, wherein the plastics are pretreated with a composition comprising at least one salt having a melting point of less than 100° C. at 1 bar (hereinafter referred to as ionic liquid).

Abstract: A lithium ion battery comprising (i) at least one anode, (ii) at least one cathode containing a cathode active material selected from lithium ion containing transition metal compounds having a content of Manganese of from 50 to 100% wt. based on the total weight of transition metal in the lithium ion containing transition metal compound, and (iii) at least one electrolyte composition containing •(A) at least one aprotic organic solvent, •(B) 0.01 up to less than 5% wt. based on the total weight of the electrolyte composition of at least one compound selected from the group consisting of lithium bis(oxalato)borate, lithium difluoro(oxalato)borate, lithium tetrafluoro(oxalato)phosphate, lithium oxalate, lithium (malonato oxalato)borate, lithium (salicylato oxalato)borate, lithium tris(oxalato)phosphate and vinylene carbonate compounds of formula (I), •(C) 0.01 up to less than 5% wt.

Abstract: The present invention relates to an electrolyte solution comprising at least one solvent as component A, at least one electrolyte as component B and from 0.1 to 20% by weight, based on the total electrolyte solution, of at least one heteroaromatic compound of the general formula (I) as component C, the use of such a compound in electrolyte solutions, the use of such an electrolyte solution in an electrochemical cell or for metal plating, and also electrochemical cells comprising a corresponding electrolyte solution.

Abstract: The present invention relates to an electrolyte solution comprising at least one solvent as component A, at least one electrolyte as component B and from 0.1 to 20% by weight, based on the total electrolyte solution, of at least one heteroaromatic compound of the general formula (I) as component C, the use of such a compound in electrolyte solutions, the use of such an electrolyte solution in an electrochemical cell or for metal plating, and also electrochemical cells comprising a corresponding electrolyte solution.

Abstract: The present invention relates to a method for producing vanillin, which comprises an electrochemical oxidation of an aqueous, lignin-comprising suspension or solution at an anode, wherein the anode used is a silver electrode.

Abstract: The invention relates to a process for preparing biaryls by anodic cross-dehydrodimerization of substituted phenols with arenes in the presence of partially fluorinated and/or perfluorinated mediators and a supporting electrolyte.

Abstract: The invention relates to a process for preparing unsymmetrical biaryl by anodic dehydrodimerization of substituted ortho-alkoxyaryl alcohols in the presence of partially fluorinated and/or perfluorinated mediators and a supporting electrolyte.