Abstract: An electrolyte suitable for use in lithium ion batteries contains 100 parts by weight of aprotic solvent, 1 to 50 parts by weight of lithium-containing conducting salt, 4 to 50 parts by weight of vinylene carbonate, and cyclic phosphonamide of the general formula 1 in which R1, R2, R3 are each hydrocarbyl which is unsubstituted or substituted by fluoro, chloro or silyl groups and which has 1-20 carbon atoms, where two or three of the radicals R1, R2, R3 may be joined to one another, and n has a value of 0, 1, 2, 3, 4 or 5. The electrolyte is used in a lithium-ion battery which comprises a cathode, an anode, a separator, and the electrolyte.

Abstract: Cyanoalkylfluorosilanes are prepared in exceptionally high yield by the reaction of the corresponding cyanoalkylchlorosilanes with specific metal fluorides. The products are useful in lithium ion battery electrolyte composition.

Abstract: Cyanoalkylfluorosilanes are prepared in exceptionally high yield by the reaction of the corresponding cyanoalkylchlorosilanes with specific metal fluorides. The products are useful in lithium ion battery electrolyte composition.

Abstract: The invention relates to an electrode coating for a lithium-ion battery, containing copolymer C or the salt thereof, copolymer C being synthesized by polymerizing a combined total of more than 70 wt % of vinyl-functional cyclic carbonate and one or more monomers from the group comprising acrylic acid and the derivatives thereof, the percentage by weight of vinyl-functional cyclic carbonate in relation to the weight of all monomers used being 5-90%.

Abstract: An electrolyte containing vinylene carbonate, an amine, a nitrile, and a conductive lithium salt is useful in lithium ion batteries to improve discharge retention after multiple charge/discharge cycles.

Abstract: An electrolyte suitable for use in lithium ion batteries contains 100 parts by weight of aprotic solvent, 1 to 50 parts by weight of lithium-containing conducting salt, 4 to 50 parts by weight of vinylene carbonate, and cyclic phosphonamide of the general formula 1 in which R1, R2, R3 are each hydrocarbyl which is unsubstituted or substituted by fluoro, chloro or silyl groups and which has 1-20 carbon atoms, where two or three of the radicals R1, R2, R3 may be joined to one another, and n has a value of 0, 1, 2, 3, 4 or 5. The electrolyte is used in a lithium-ion battery which comprises a cathode, an anode, a separator, and the electrolyte.

Abstract: The invention relates to an electrode coating for a lithium-ion battery, containing copolymer C or the salt thereof, copolymer C being synthesized by polymerizing a combined total of more than 70 wt % of vinyl-functional cyclic carbonate and one or more monomers from the group comprising acrylic acid and the derivatives thereof, the percentage by weight of vinyl-functional cyclic carbonate in relation to the weight of all monomers used being 5-90%.

Abstract: Provided are polymer modified substrates which comprise a) a substrate, b) a binding layer covalently attached to the surface of the substrate and covering at least a part of this surface; and c) a polymer brush formed by a plurality of polymer chains, each of which is covalently attached at one of its terminals to the binding layer. Moreover, methods are provided, for the preparation of the polymer modified substrates by polymerizing vinyl group containing monomers, such as vinylphosphonates, on a binding layer provided on a substrate.