Basf Se Corporation

Other

Simon Schroedle

Martin Schulz-Dobrick

Jordan Keith Lampert

Hartmut Hibst

Klaus Leitner

Arnd Garsuch

Itamar Michael Malkowsky

Jordan K Lampert

Kirill Bramnik

Aleksei Volkov

Olaf Kutzki

Oliver Wagner

Gabriele Iffland

Ralf Boehling

Ivan Petrovic

Brian Roberts

Thomas Michael Ryll

Ji-Yong Shin

Thorsten Beierling

Peter Dransfeld

Mark Schweter

Uwe Krippels

Patric Mueller

The present invention is directed towards a process for making a lithiated transition metal oxide, said process comprising the following steps:

Process for making lithiated transition metal oxides

A process for preparing transition metal carbonates with a mean particle diameter in the range from 6 to 19 &#x3bc;m (D50), which comprises combining, in a stirred vessel, at least one solution of at least one transition metal salt with at least one solution of at least one alkali metal carbonate or alkali metal hydrogencarbonate to prepare an aqueous suspension of transition metal carbonate, and, in at least one further compartment, continuously introducing a mechanical power in the range from 50 to 10 000 W/l in a proportion of the suspension in each case, based on the proportion of the suspension, and then recycling the proportion into the stirred vessel.

Process for preparing transition metal carbonates

The present invention is directed towards a process for making a particulate material according to the general formula (I): NiCOMnM(O)(OH), wherein M is selected from Al and Ti, x is in the range of from 0.01 to 0.9, y is in the range of from 1.1 to 1.99, a is in the range of from 0.3 to 0.85, b is in the range of from 0.05 to 0.4, c is in the range of from 0.1 to 0.5, d is in the range of from 0.001 to 0.03, with a+b+c+d=1 said process comprising the following steps: (a) providing an aqueous slurry of particles of aluminum hydroxide or titanium dioxide, (b) adding an aqueous solution of water-soluble salts of nickel, cobalt and manganese and a solution of alkali metal hydroxide to the slurry according to step (a), thereby co-precipitating a layer of a mixed hydroxide of nickel and cobalt and manganese hydroxide on the particles according to step (a), (c) removing particles of (NiCOMnAl)(OH)or (NiCOMnTi)(OH)so obtained and drying them in the presence of oxygen.

Process for making a cathode active material and a precursor therefore, cathode active material and its use

Spherical particles of transition metal carbonates, transition metal hydroxides or transition metal carbonate hydroxides comprising cations of at least two transition metals selected from nickel, cobalt, manganese, titanium, vanadium, chromium and iron, wherein the concentration of at least one of the transition metal cations, plotted against the radius of the particle in question, has at least one relative extreme value which is neither in the center nor at the edge of the particle in question.

Spherical particles, production and use thereof

Process for producing a suspension by precipitation of a solid from a solution, wherein at least two solutions of salts are combined with one another in a stirred vessel so as to form a sparingly soluble solid, where

Process for producing suspensions

Process for producing cathodes Process for producing cathodes comprising a cathode material comprising 

Method for producing cathodes

Spherical particles, production thereof and use

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 C-C-alkyl, C-C-alkoxy, C-C-cycloalkyl, benzyl or C-C-aryl, water, optionally an additive and a lithium salt.

Mixtures and use thereof in lithium ion batteries

The present invention relates to a process for preparing transition metal hydroxides with a mean particle diameter in the range from 6 to 12 &#x3bc;m (D50), which comprises combining, in a stirred vessel, at least one solution of at least one transition metal salt with at least one solution of at least one alkali metal hydroxide to prepare an aqueous suspension of transition metal hydroxide, and, in at least one further compartment, continuously introducing a mechanical power in the range from 50 to 10 000 W/l in a proportion of the suspension in each case, based on the proportion of the suspension, and then recycling the proportion into the stirred vessel.

Process for preparing transition metal hydroxides

Process for preparing an aqueous cobalt sulfate solution having a pH of at least 4, wherein

Method for producing aqueous solutions of cobalt sulphate

Process for preparing an aqueous cobalt sulfate solution having a pH in the range from 5 to 8, wherein

Process for preparing aqueous solutions of cobalt sulfate

The present invention relates to a process for the preparation of particles comprising at least one compound according to general formula (I) MaMbMcOoNnFf (I) wherein M, M, MO, 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 0-2.0, wherein a, b, c, o, n and f are chosen to ensure electroneutrality of the compound according to general formula (I), and carbon, comprising at least the following steps: (A) providing an essentially aqueous mixture comprising at least one compound comprising M, at least one compound comprising Mhaving at least partially an oxidation state higher than +2, optionally at least one compound comprising M, at least one compound comprising N, if present, and/or at least one compound comprising F, if present, at least one polysaccharide comprising glucose having a molecular weight M of at least 50000 g/mol as carbon precursor and at least one reducing agent, (B) drying the mixture provided in step (A), in order to obtain a solid particle and (C) calcining the solid particle obtained from step (B) at a temperature of 300 to 950&#xb0; C.

[object Object]

A process for preparing transition metal mixed oxide precursors, including:

Process for preparing precursors for transition metal mixed oxides

Electrochemical cells and use thereof

The present invention relates to a process for the preparation of compounds of general formula (I) LiMQMPMO(l), wherein Q has the oxidation state +2 and M, M, M,a, b, c, d, e and x are: Q: Fe, Mn, Co, Ni, M: Na, K, Rb and/or Cs, M: Mg, Al, Ca, Ti, Co, Ni, Cr, V, Fe, Mn, wherein Q and M2 are different from each other,M: 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, M, M, P, M, 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 Q-comprising compound, in which Q has at least partially an oxidation state higher than +2, and at least one M-comprising compound, if present, and/or at least one M-comprising compound, if present, and/or least one M-comprising compound, if present, and at least one reducing agent which is oxidized to 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&#xb0; C. and at an autogeneous pressure to reduce Q to oxidation state +2 and to obtain a compound of general formula (I).

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Ludwigshafen, Germany

Simon Schroedle