Haldor Topse A/s

Haldor Topsoe A/s

Topsoe Battery Materials A/s

Topsoe A/s

Søren Dahl

Jakob Weiland Høj

Rainer Küngas

Jon Fold Von Bülow

Jonathan Højberg

Anni Stahl

Kim Aasberg-Petersen

Poul Erik Højlund Nielsen

John Bøgild Hansen

Keld Johansen

Claus Hviid Christensen

Pär L T Gabrielsson

Ton V W Janssens

Niels Christian Schjødt

Charlotte Stub Nielsen

Gurli Mogensen

Gisela Arnold

Ioannis Gekas

Jesper Nerlov

Søren Pehrson

Jonathan H∅jberg

Alexandr Stakhev

Georgij Vacheevich Isaguliants

Christian Fink ElkjÆr

Inna Pavlovna Belomestnykh

Line Holten Kollin

Steen Henrik Olsen

Peter Axmann

Claudia Pfeifer

Wolfgang Weirather

Martin SØNDERGAARD

Pär LT Gabrielsson

Karen Wonsyld

The invention relates to a method of preparing a sodium metal oxide material comprising NaMCoO, where M is one or more of the following elements: Mn, Cu, Ti, Fe, Mg, Ni, V, Zn, Al, Li, Sn, Si, Ga, Ge, Sb, W, Zr, Nb, Mo, Ta, 0.7≤x≤1.3, 0.9≤y≤1.1, 0≤z<0.15, 0≤δ≤0.2 and wherein the average length of primary particles of said sodium metal oxide material is between 2 and 10 μm, preferably between 5 and 10 μm. The invention also relates to such a material.

Sodium metal oxide material for secondary batteries and method of preparation

The invention relates to a method for the precipitation of a solid material, where the method comprises: providing an aqueous metal ion solution, said metal ion solution comprising TiOSOand metal ions of a metal M, where M is one or more of the elements: Mg, Co, Cu, Ni, Mn, Fe; providing an aqueous carbonate solution; and mixing said aqueous metal ion solution and said aqueous carbonate solution thereby providing a solid material comprising titanium and a metal carbonate comprising said metal(s) M, where the titanium is homogeneously distributed within the solid material. The invention also relates to a solid material, a method of preparing a positive electrode material for a secondary battery from the solid material and the use of the solid material as a precursor for the preparation of a positive electrode material for a secondary battery.

Introduction of titanium homogeneously into a solid material

In a method for the precipitation of particles of a metal carbonate material comprising nickel and manganese in an atomic ratio of 0≤Ni:Mn≤1:3, aqueous solutions comprising sulfates or nitrates of nickel and manganese are mixed with aqueous solutions of carbonates or mixtures of carbonates and hydroxides of sodium or potassium in a stirred reactor at pH>7.5 without the use of a chelating agent. Thereby agglomerated particles are formed without any subsequent process steps, in particular no subsequent process at temperatures higher than the precipitation temperature.

Method for the precipitation of particles of a metal carbonate material without use of a chelating agent

A lithium positive electrode active material intermediate including less than 80 wt % spinel phase and a net chemical composition of LiNiMnOwherein 0.9&#x2264;x&#x2264;1.1; 0.4&#x2264;y&#x2264;0.5; and 0.1&#x2264;&#x3b4;. Further, a process for the preparation of a lithium positive electrode active material with high tap density for a high voltage secondary battery where the cathode is fully or partially operated above 4.4 V vs. Li/Li+, comprising the steps of a)heating a precursor in a reducing atmosphere at a temperature of from 300&#xb0; C. to 1200&#xb0; C. to obtain a lithium positive electrode active material intermediate; b)heating the product of step a. in a non-reducing atmosphere at a temperature of from 300&#xb0; C. to 1200&#xb0; C.; wherein the mass of the product of step b. increases by at least 0.25% compared to the mass of the product of step a.

High tap density lithium positive electrode active material, intermediate and process of preparation

A method of producing a kesterite material of CZTS, CZTSe or CZTSSe type, including the steps of: a) preparing an acidic solution by dissolving copper and zinc salts in water in desired molar ratio, b) preparing a basic solution by dissolving an alkali metal stannate together with an alkali metal carbonate or an alkali metal hydrogen carbonate or an alkali metal hydroxide or a combination thereof, and optionally with an alkali metal selenate or an alkali metal selenite or a mixture thereof, c) carrying out a precipitation reaction by mixing the acidic and the basic solution, d) drying the precipitate thereby providing a precursor for the kesterite material, and e) sulfurizing the precursor of step d to provide the kesterite material. Also, a precursor for a kesterite material of CZTS, CZTSe or CZTSSe type.

Kesterite material of CZTS, CZTSe or CZTSSe type

A lithium positive electrode active material intermediate comprising less than 80 wt % spinel phase and a net chemical composition of LiNiMnOwherein 0.9&#x2264;x&#x2264;1.1; 0.4&#x2264;y&#x2264;0.5; and 0.1&#x2264;&#x3b4;; where the lithium positive electrode active material intermediate has been heat treated in a reducing atmosphere at a temperature of from 300&#xb0; C. to 1200&#xb0; C. A process for the preparation of a lithium positive electrode active material with high tap density for a high voltage secondary battery where the cathode is fully or partially operated above 4.4 V vs. Li/Li+, comprising the steps of a) heating a precursor in a reducing atmosphere at a temperature of from 300&#xb0; C. to 1200&#xb0; C. to obtain a lithium positive electrode active material intermediate; b) heating the product of step a. in a non-reducing atmosphere at a temperature of from 300&#xb0; C. to 1200&#xb0; C.

A lithium positive electrode active material including at least 95 wt % spinel having a chemical composition of LiNiMnD1D2O, wherein 0.9&#x2264;x&#x2264;1.1, 0.4&#x2264;y&#x2264;0.5, 0.005&#x2264;z1&#x2264;0.2, 0&#x2264;z2&#x2264;0.2, wherein D1 and D2 are dopants chosen between the following elements: Co, Cu, Ti, Zn, Mg, Fe or combinations thereof. D1 and D2 are different dopants, and the lithium positive electrode active material is a powder composed of material particles, wherein the distribution of dopant D1 is non-uniform along a radial axis of the material particles and the distribution of the dopant D2 is substantially uniform along the radial axis of the material particles. Also, a process for preparing the lithium positive electrode active material and a secondary battery comprising the lithium positive electrode active material.

Doped lithium positive electrode active material and process for manufacture thereof

A method and apparatus for the removal of NOemission from a lean burn compression ignition engine, wherein NOcontaining engine exhaust gas is brought in contact with a catalyst being active in the reduction of NOto NO and comprising at least one platinum group metal with the proviso that the platinum metal is not platinum and at least one redox active metal oxide and thereby reducing NOcontained in the exhaust gas to NO by reaction with CO, hydrocarbons and/or soot being present in the exhaust gas.

Method and apparatus for the purification of exhaust gas from a compression ignition engine

A fuel processing method for a solid oxide fuel cell stack comprising the steps of:

Fuel processing method and system

Process for reducing nitrogen oxides to nitrogen in an exhaust gas comprising passing the exhaust gas in the presence of a reducing agent through a catalyst system comprising at least two catalyst beds, in which a first catalyst bed is an iron-beta-zeolite and a second catalyst bed downstream is silver supported on alumina.

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Process for selectively reforming ethanol to a hydrogen-rich product in the presence of at least one catalyst comprising a catalytically active material supported on a carrier, the process comprising the following steps in which the at least one catalyst is active:

Process for reforming ethanol to hydrogen-rich products

Process for the preparation of acrolein and/or acrylic acid by catalytic gas-phase selective oxidation reaction of propane, the process comprising contacting a reaction gas containing propane and an oxygen-containing gas over a mixed metal oxide solid catalyst supported on a TiO&#x2014;MoOporous support.

Process for the preparation of acrolein and/or acrylic acid

A process for the conversion of oxygenates to hydrocarbons comprising contacting a feed stream comprising oxygenates with a catalyst containing a microporous material under oxygenate conversion conditions, wherein the catalyst contains a crystalline microporous material with intra-crystalline mesopores. The invention also includes a composition for use in the above process.

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Hillerød, Denmark

Søren Dahl