Johnson Matthey Inc.

Merck Patent Gesellschaft MIT Beschrankter Haftung

Johnson Matthey Public Limited Company

Sued-chemie IP Gmbh & Co. Kg

Sued-chemie Ag

Zentrum Fur Sonnenenergie-und Wasserstoff-forschung Baden-wurttenberg, Gemeinnutzige Stiftung

Sud-chemie Ag

Süd-Chemie Ip Gmbh & Co Kg

Zentrum Fur Sonnenenergie Und Wasserstoff Forschung Baden-wurttemberg Gemeinnutzige Stiftung

Christian Vogler

Gerhard Nuspl

Margret Wohlfahrt-Mehrens

Peter Axmann

Gisela Arnold

Michael Holzapfel

Reinhard P Hemmer

Peter Bauer

Giesela Arnold

Michael Schmidt

Guoxian Liang

Norbert Schall

Max Eisgruber

Nicolas Tran

Andreas Laumann

Lucia Wimmer

Andreas Pollner

Jasmin Dollinger

Christophe Michot

Klaus Langer

Josefine Zuber

Holzapfel Michael

Christoph Stinner

Marget Wohlfahrt-Mehrens

The present invention relates to a mixed oxide containing Furthermore, the present invention relates to a process for its preparation and the use of the mixed oxide as electrode material for lithium ion batteries.

Mixed oxide containing a lithium manganese spinel and process for its preparation

A substituted lithium-manganese metal phosphate of formulaLiFeMnMPOin which M is a bivalent metal from the group Sn, Pb, Zn, Ca, Sr, Ba, Co, Ti and Cd and wherein: x&#x3c;1, y&#x3c;0.3 and x+y&#x3c;1, a process for producing it as well as its use as cathode material in a secondary lithium-ion battery.

Substituted lithium-manganese metal phosphate

A mixed oxide containing Furthermore, a process for its preparation and the use of the mixed oxide as electrode material for lithium ion batteries.

A method for removing a particulate contaminant material from a particulate mixed lithium metal phosphate material is provided. The method includes feeding the particulate mixed lithium metal phosphate material into a fluidizing stage containing particulate mixed lithium metal phosphate material of mass m, feeding the fluidized particulate mixed lithium metal phosphate material through a sifting stage, discontinuing the feed of the particulate mixed lithium metal phosphate material into the fluidizing stage after 10 to 100 times of the mass m have been fed into the fluidizing stage, fluidizing and sifting the material present in the fluidizing stage after discontinuing the feed until the mass of the material present in the fluidizing stage becomes 10% to 100% of the mass m, and removing the remaining material from the fluidizing stage.

Method for removing a particulate contaminant material from a particulate mixed lithium metal phosphate material

A method of reducing magnetic and/or oxidic contaminants in lithium metal oxygen compounds in particle form, in order to obtain purified lithium metal oxygen compounds, by means of treatment in a grinding process and sifting process with continuous or non-continuous removal and obtaining of the purified lithium metal oxygen compound. The grinding process and sifting process are terminated prematurely before the residue amounts to less than 1% of the quantity m. The residue, containing contaminants, is discarded.

Method of reducing magnetic and/or oxidic contaminants in lithium metal oxygen compounds

The invention relates to a method for producing lithium metal phosphates of a formula LiMPO, wherein M is at least one type of bivalent metal, preferably selected from the first transition metal range. The inventive method consists in reacting a lithium phosphate with a metal salt and an acid phosphate source in a polar solvent for converting into a corresponding M-containing phosphate, in adding a basic lithium source for obtaining a precursor mixture for a desired lithium metal phosphate, in converting and separating the thus obtained mixture, preferably in hydrothermal conditions, in such a way that a desired final product is obtained, thereby receiving a lithium-containing filtrate. The addition of the basic lithium source initiates a lithium ion precipitation in the form of a lithium phosphate. The thus obtainable lithium phosphate can be reused in the form of a raw material, whereby said cycle enables lithium to be highly reusable.

Cyclic process for wet-chemically producing lithium metal phosphates

The present invention relates to a nanoparticulate composition comprising nanoparticles with a particle-size distribution of d&#x2266;10 &#x3bc;m, and optionally a surface-active agent. The present invention further relates to a method for the production of such a nanoparticulate composition.

Nanoparticulate composition and method for its production

A cyclic process for the preparation of barium sulphate and lithium-iron phosphate comprising (i) preparing an aqueous solution containing lithium and sulphate ions and (ii) adding solid barium hydroxide at a temperature of more than 50&#xb0; C., wherein the barium hydroxide is added over a period of less than 15 minutes. Also, barium sulphate obtainable by the process according to the invention.

Cyclic process for the preparation of barium sulphate and lithium metal phosphate compounds

The invention relates to binary, ternary and quaternary lithium phosphates of general formula Li(FeMM)POwherein Mrepresents at least one element of the group comprising Sc, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Be, Mg, Ca, Sr, Ba, Al, Zr, and La; Mrepresents at least one element of the group comprising Sc, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Be, Mg, Ca, Sr, Ba, Al, Zr, and La; x=between 0.5 and 1, y=between 0 and 0.5, z=between 0 and 0.5, provided that x+y+z=1, or x=0, y=1 and z=0. The said lithium phosphates can be obtained according to a method whereby precursor compounds of elements Li, Fe, Mand/or Mare precipitated from aqueous solutions and the precipitation product is dried in an inert gas atmosphere or a reducing atmosphere at a temperature which is between room temperature and approximately 200&#xb0; C. and tempered at a temperature of between 300&#xb0; C. and 1000&#xb0; C. The inventive lithium phosphates have a very high capacity when used as cathode material in lithium accumulators.

Binary, ternary and quaternary lithium phosphates, method for the production thereof and use of the same

The invention relates to a crystalline ion-conducting material made of LiMPOnanoparticles, wherein M is selected from Cr, Mn, Co, Fe and Ni, in addition to mixtures thereof and the nanoparticles have an essentially flat prismatic shape. The invention also relates to a method for producing said type of crystalline ion-conducting material which consists of the following steps: a precursor component is produced in a solution front a lithium compound of a component containing metal ions M and a phosphate compound, the precursor compound is subsequently precipitated from the solution and, optionally, a suspension of the precursor compound is formed, the precursor compound and/or the suspension is dispersed and/or ground, and the precursor compound and/or the suspension is converted under hydrothermal conditions and subsequently, the crystalline material is extracted.

Crystalline ion-conducting nanomaterial and method for the production thereof

A process for recycling electrode materials from spent lithium batteries in which negative-electrode materials from the lithium/transition-metal mixed oxide class of compounds from discharged, spent lithium batteries can, after comminution of the electrode constituents, be re-synthesized into chemically identical products as employed for the production of the batteries comprising mechanical and extractive processing of these constituents with the aim of removing positive-electrode constituents and other secondary constituents, such as binders and other processing auxiliaries, followed by controlled high-temperature treatment without leaving thermal decomposition products behind.

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Moosburg, Germany

Christian Vogler