Albemarle Germany Gmbh

Other

Rockwood Lithium Gmbh

Amg Lithium Gmbh

Vera Nickel

Ulrich Wietelmann

Ute Emmel

Hannes Vitze

Marc-Christian Müller

Sebastian Pietzner

Stefan Scherer

Steffen Haber

Christoph Hartnig

Johannes Willems

Martin Steinbild

Thorsten Buhrmester

Gerd Krämer

Armine Plath

Sebastian Lang

Christine Gabbey

Stefanie Riehl

Martin Janssen

Gerd Kramer

The invention relates to a highly reactive, high-purity, free-flowing and dust-free lithium sulfide powder having an average particle size between 250 and 1,500 &#x3bc;m and BET surface areas between 1 and 100 m/g. The invention, furthermore, relates to a process for its preparation, wherein in a first step, lithium hydroxide monohydrate is heated in a temperature-controlled unit to a reaction temperature between 150&#xb0; C. and 450&#xb0; C. in the absence of air, and an inert gas is passed over or through it, until the residual water of crystallization content of the formed lithium hydroxide is less than 5 wt. % and in a second step, the anhydrous lithium hydroxide formed in the first step is mixed, overflowed or traversed by a gaseous sulfur source from the group consisting of hydrogen sulfide, elemental sulfur, carbon disulfide, mercaptans or sulfur nitrides.

Highly reactive, dust-free and free-flowing lithium sulphide and method for the production thereof

The invention relates to a process for recovering lithium from lithium-sulfur accumulators, wherein the accumulators are discharged, shredded, and pre-cleaned by sieves or screens to separate housing and electricity collector parts, the remaining material is dispersed in an aqueous medium, resulting in formation of a lithium sulfide containing solution from which insoluble components are removed by filtration, and the electrolyte is removed by phase separation, followed by a process for separation of the lithium from the lithium sulfide-containing solution.

Process for recovering lithium from lithium-sulfur accumulators

Described is a coated, (partly) lithiated graphite powder characterized in that it has been produced in a non-electrochemical process from metallic lithium and graphite in powder form and has been stabilized outside an electrochemical cell by application of a coating layer; and a galvanic cell comprising a cathode, a lithium-conductive electrolyte-separator system and an anode comprising a coated, (partly) lithiated graphite powder, where the (partial) lithiation and the coating of the graphite powder are performed non-electrochemically outside the galvanic cell (ex situ).

Stabilised (partially) lithiated graphite materials, methods for the production thereof and use for lithium batteries

The invention relates to particulate lithium metal formations having a substantially spherical geometry and a core composed of metallic lithium, which are enclosed with an outer passivating but ionically conductive layer containing nitrogen. The invention further relates to a method for producing lithium metal formations by reacting lithium metal with one or more passivating agent(s) containing nitrogen, selected from the groups N, NHwith x=1 or 2 and y=3 or 4, or a compound containing only the elements C, H, and N, and optionally Li, at temperatures in the range between 60 and 300&#xb0; C., preferably between 100 and 280&#xb0; C., and particularly preferably above the melting temperature of lithium of 180.5&#xb0; C., in an inert organic solvent under dispersion conditions or in an atmosphere that contains a gaseous coating agent containing nitrogen.

Stabilized lithium metal formations coasted with a shell containing nitrogen, and a method for the production of same

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Haiger, Germany

Vera Nickel