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: Process for making a fluorinated lithiated transition metal oxide, comprising the step of treating a lithiated transition metal oxide containing at least two different transition metal cations and, as an impurity, at least one lithium compound selected from lithium hydroxide, lithium oxide and lithium carbonate and from combinations of at least two thereof, with at least one fluorine compound selected from HF, NH4F and (NH4)3AlF6.

Abstract: The present invention relates to a process for producing electrode materials, which comprises the following steps: (a) mixing the following with one another: (A) at least one phosphorus compound, (B) at least one lithium compound, (C) at least one carbon source, (D1) at least one water-soluble iron compound in which Fe is present in the +2 or +3 oxidation state, (D2) at least one iron source which is different than (D1) and is water-insoluble and in which Fe is present in the zero, +2 or +3 oxidation state, (b) thermally treating the mixture obtained.

Abstract: A process for producing electrode materials, which comprises treating a mixed oxide which comprises lithium and at least one transition metal as cations with at least one oxygen-containing organic compound of sulfur or phosphorus or a corresponding alkali metal or ammonium salt of an oxygen-containing organic compound of sulfur or phosphorus, or a fully alkylated derivative of an oxygen-containing compound of sulfur or phosphorus.

Abstract: The present invention relates to a process for the preparation of particles comprising at least one compound according to general formula (I) M1aM2bM3cOoNnFf (I) wherein M1, M2, M3 O, N, F, a, b, c, o, n and f have the following meanings: M1 at least one alkaline metal, M2 at least one transition metal in oxidation state +2, M3 at least one non-metal chosen form S, Se, P, As, Si, Ge and/or B, O oxygen, N nitrogen, F fluorine, a 0.8-4.2, b 0.8-1.9, c 0.8-2.2, o 1.0-8.4, n 0-2.0 and f 0-2.

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: The present invention relates to a process for the preparation of compounds of general formula (I) Lia-bM1bQ1-cM2cPd-eM3eOx (l), wherein Q has the oxidation state +2 and M1, M2, M3,a, b, c, d, e and x are: Q: Fe, Mn, Co, Ni, M1: Na, K, Rb and/or Cs, M2: Mg, Al, Ca, Ti, Co, Ni, Cr, V, Fe, Mn, wherein Q and M2 are different from each other,M3: Si, S, F a: 0.8-1.9, b: 0-0.3, c: 0-0.9, d: 0.8-1.9, e: 0-0.5, x: 1.

Abstract: The present application relates to a process for the preparation of compounds of general formula (I) Lia-bM1bFe1-cM2cPd-eM3eOx??(I), wherein M1, M2, M3, a, b, c, d, e and x: M1: Na, K, Rb and/or Cs, M2: Mn, Mg, Ca, Ti, Co, Ni, Cr, V, M3: Si, S, a: 0.8-1.9, b: 0-0.3, c: 0-0.9, d: 0.8-1.9, e: 0-0.5, x: 1.

Abstract: The present application relates to a process for the preparation of compounds of general formula (I) Lia-bM1bFe1-cM2cPd-eM3eOx??(I), wherein M1, M2, M3, a, b, c, d, e and x: M1: Na, K, Rb and/or Cs, M2: Mn, Mg, Ca, Ti, Co, Ni, Cr, V, M3: Si, S, a: 0.8-1.9, b: 0-0.3, c: 0-0.9, d: 0.8-1.9, e: 0-0.5, x: 1.

Abstract: A process for preparing modified mixed transition metal oxides, which comprises treating a precursor of a mixed oxide which comprises lithium and at least two transition metals as cations with at least one substance which is selected from compounds of phosphorus, silicon, titanium, boron or aluminum having at least one phenoxy or alkoxy group or at least one halogen.

Abstract: The present invention relates to a process for the preparation of compounds of general formula (I) Lia-bMb1Fe1-cMc2Pd-eMe3Ox, wherein Fe has the oxidation state +2 and M1, M2, M3, a, b, c, d, e and x are: M1: Na, K, Rb and/or Cs, M2: Mn, Mg, Al, Ca, Ti, Co, Ni, Cr, V, M3: Si, S, F a: 0.8-1.9, b: 0-0.3, c: 0-0.9, d: 0.8-1.9, e: 0-0.5, x: 1.0-8, depending on the amount and oxidation state of Li, M1, M2, P, M3, wherein compounds of general formula (I) are neutrally charged, comprising the following steps (A) providing a mixture comprising at least one lithium-comprising compound, at least one iron-comprising compound, in which iron has the oxidation state 0, and at least one M1-comprising compound, if present, and/or at least one M2-comprising compound, if present, and/or least one M3-comprising compound, if present, and at least one compound comprising at least one phosphorous atom in oxidation state +5, and (B) heating the mixture obtained in step (A) at a temperature of 100 to 500° C.

Abstract: The present invention relates to a process for producing electrode materials, which comprises the following steps: (a) mixing the following with one another: (A) at least one phosphorus compound, (B) at least one lithium compound, (C) at least one carbon source, (D1) at least one water-soluble iron compound in which Fe is present in the +2 or +3 oxidation state, (D2) at least one iron source which is different than (D1) and is water-insoluble and in which Fe is present in the zero, +2 or +3 oxidation state, (b) thermally treating the mixture obtained.

Abstract: The present application relates to a process for the preparation of compounds of general formula (I) Lia?bM1bFe1?cM2cPd?eM3eOx??(I), wherein M1, M2, M3, a, b, c, d, e and x: M1: Na, K, Rb and/or Cs, M2: Mn, Mg, Ca, Ti, Co, Ni, Cr, V, M3: Si, S, a: 0.8-1.9, b: 0-0.3, c: 0-0.9, d: 0.8-1.9, e: 0-0.5, x: 1.

Abstract: Process for preparing lithium mixed metal oxides which comprise essentially lithium, manganese, cobalt and nickel as metal atoms and have a stoichiometric ratio of lithium to the total transition metals of greater than 1, which comprises a) the preparation of a mixture designated as intermediate (B) which comprises essentially lithium-comprising mixed metal hydroxides and lithium-comprising mixed metal oxide hydroxides, where manganese, cobalt and nickel are comprised in the ratio (1-a-b):a:b and the oxidation state averaged over all ions of manganese, cobalt and nickel is at least 4-1.75a-1.75b, where 0?a?0.5 and 0.1?b?0.8, by a thermal treatment carried out with continual mixing and in the presence of oxygen of a mixture (A) comprising at least one transition metal compound and at least one lithium salt (L), during which L does not melt, and b) the thermal treatment carried out without mixing and in the presence of oxygen of the intermediate (B).

Abstract: The present invention relates to a process for the preparation of compounds of general formula (I) Lia-bM1bV2-cM2c(PO4)x??(I) wherein M1, M2, a, b, c and x have the following meanings: M1: Na, K, Rb and/or Cs, M2: Ti, Zr, Nb, Cr, Mn, Fe, Co, Ni, Al, Mg and/or Sc, a: 1.5-4.5, b: 0-0.6, c: 0-1.98 and x: number to equalize the charge of Li and V and M1 and/or M2, if present, wherein a-b is >0, to a compound according to general formula (I) as defined above, to spherical agglomerates and/or particles comprising at least one compound of general formula (I) as defined above, to the use of such a compound for the preparation of a cathode of a lithium ion battery or an electrochemical cell, and to a cathode for a lithium ion battery, comprising at least one compound as defined above.

Abstract: The present invention relates to a process for the preparation of compounds of general formula (I) Lia-bM1bV2-cM2c(PO4)x??(I) wherein M1, M2, a, b, c and x have the following meanings: M1: Na, K, Rb and/or Cs, M2: Ti, Zr, Nb, Cr, Mn, Fe, Co, Ni, Al, Mg and/or Sc, a: 1.5-4.5, b: 0-0.6, c: 0-1.98 and x: number to equalize the charge of Li and V and M1 and/or M2, if present, wherein a-b is >0, to a compound according to general formula (I) as defined above, to spherical agglomerates and/or particles comprising at least one compound of general formula (I) as defined above, to the use of such a compound for the preparation of a cathode of a lithium ion battery or an electrochemical cell, and to a cathode for a lithium ion battery, comprising at least one compound as defined above.

Abstract: A compound of the general formula (I) AaMbPcOd??(I) in which the variables are each defined as follows: M is at least one transition metal selected from Co, Ni, Mn, Fe and Cr, A is Li or LixNa1-x where x is in the range from 0.2 to 1.0, a is in the range from 3.5 to 4.5, b is in the range from 0.8 to 1.2, c is in the range from 1.8 to 2.2 and d is in the range from 7.2 to 8.8.

Abstract: The present invention relates to a Process for the preparation of compounds of general formula (I), Lia-bM1bFe1-cM2cPd-eM3eOx, wherein M1, M2, M3, a, b, c, d and e: M1: Na, K, Rb and/or Cs, M2: Mn, Mg, Ca, Ti, Co, Ni, Cr, V, M3: Si, S, a: 0.8-1.9, b: 0-0.3, c: 0-0.9, d: 0.8-1.9, e: 0-0.5, x: 1.

Abstract: The present invention relates to a process for the preparation of compounds of general Formula (I) La-bM1bFe1-cM2cPd-eM3eOx (I), wherein Fe has the oxidation state +2 and M1, M2, M3, a, b, c, d, e and x are: M1: Na, K, Rb and/or Cs, M2: Mn, Mg, Al, Ca, Ti, Co, Ni, Cr, V, M3: Si, S, F a: 0.8-1.9, b: 0-0.3, c: 0-0.9, 15 d: 0.8-1.9, e: 0-0.5, x: 1.

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.