Diamond and ternary alkali metal chalcogenidometallates with diamond topology and their use as intercalating materials, especially in secondary batteries

摘要

The present invention relates to a compound of the composition AnMq zTxQy · mROH (I) where A = alkali metal M = ion of a transition metal element and the valence q T = Tetrel Q = chalcogen ROH = crystallized solvent, with R = H, CH3 and / or C2H5 n = 2y - 4x - zq z = 0 or 1 or 1 x = 2y - 2zq - ny = n + zq + 4x, m = 0, 1 or greater than 1, q = 1, 2, 3, 4, 5 or 6 wherein the connection is present in a crystal structure with diamond topology, in which - either A, T and Q and possibly M occupy lattice sites of the cubic or hexagonal diamond structure or - the focal points of complex anions [TxQy] nz– and / or [MzTxQz] n– die Lattice sites (atomic positions) occupy the cubic or hexagonal diamond structure, while the ions of the alkali metal A and ROH, provided m ≠ 0, occupy interstitial sites that are suitable for the conduction and / or storage of alkali metal cations and therefore z. B. can represent an electrode material in combination with an electron-conducting material.