Chemetall Gmbh

Albemarle Germany Gmbh

Rockwood Lithium Gmbh

Metallgesellschaft Aktiengesellschaft

Albermarle Germany Gmbh

Ute Emmel

Ulrich Wietelmann

Wilfried Weiss

Christoph Hartnig

Peter Rittmeyer

Uwe Lischka

Stefan Scherer

Dirk Dawidowski

Rainer Dietz

Armin Stoll

Florian Kiefer

Thorsten Buhrmester

Jens Röder

Vera Nickel

Gerd Krämer

Rainer Aul

Steffen Haber

Martin Steinbild

Christopher Kurth

Sebastian Lang

Serife Kaymaksiz Tost

Florian Wilhelm

Sven Schröter

Rebecca Metzger

Mario Wachtler

Kay Papstein

Gerd Kramer

Irina Wolf

Bernhard Debbeler

Walter Pleyer

Margret Wohlfahrt-Mehrens

Serife Kaymaksiz

Irina Tschernych

Sven Schroter

Jens RÖDER

The invention relates to composite materials comprising lithiated or partially-lithiated graphite or graphene, and silicon having particles sizes from about 1 μm to about 100 μm, and that have an electrochemical rest potential less than about 2 V measured against Li/Li, wherein graphitic material is mixed with silicon powder in a molar ratio of 9:1 to 1:9 and with lithium powder to an amount of the lithium in the composite material in the range of about 10 molar % to 100 molar % of the stochiometrically maximally possible lithium absorption, and to methods for production thereof.

Lithiated silicon/carbon composite materials and method for producing the same

One or more concentrated low-viscosity solutions of alkaline earth alkoxide compounds M(OCHR)(OR)[O(CHR)ORin mixture with a metal alkyl compound M(RR) in an aprotic solvent and related methods are disclosed herein.

Low-viscosity solutions of alkaline-earth metal alkoxides in aprotic solvents, method for the production of same and use for the production of ziegler-natta catalysts

Rechargeable, non-aqueous lithium batteries which contain, as active anode material, either lithium metal or a lithium alloy, an active cathode material with a redox potential in the range of between 1.5 and 3.4 V vs Li/Liand lithium rhodanide (LiSCN) as electrolyte component. One or more related methods for providing overcharge protection are also described herein.

1.5-3 V lithium batteries with overcharge protection

The invention relates to particulate lithium metal composite materials, stabilized by alloy-forming elements of the third and fourth primary group of the PSE and method for production thereof by reaction of lithium metal with film-forming element precursors of the general formulas (I) or (II): [ARRRR]Li(I), or RRRA-O-ARRR(II), wherein RRRRRR=alkyl (C-C), aryl, alkoxy, aryloxy-, or halogen (F, Cl, Br, I), independently of each other; or two groups R represent together a 1,2-diolate (1,2-ethandiolate, for example), a 1,2- or 1,3-dicarboxylate (oxalate or malonate, for example) or a 2-hydroxycarboxylate dianion (lactate or salicylate, for example); the groups Rto Rcan comprise additional functional groups, such as alkoxy groups; A=boron, aluminum, gallium, indium, thallium, silicon, germanium, tin, lead; x=0 or 1 for B, Al, Ga, In, Tl; x=0 for Si, Ge, Sn, Pb; in the case that x=0 and A=B, Al, Ga, In, Tl, Ris omitted, or with polymers comprising one or more of the elements B, Al, Ga, In, Tl, Si, Ge, Sn, Pb, at temperatures between 50 and 300&#xb0; C., preferably above the melting temperature of lithium of 180.5&#xb0; C., in an organic, inert solvent.

Stabilized lithium metal impressions coated with alloy-forming elements and method for production thereof

One or more concentrated low-viscosity solutions of alkaline earth alkoxide compounds M(OCHR)(OR)[O(CHR)OR]in mixture with a metal alkyl compound M(RR) in an aprotic solvent and related methods are disclosed herein.

Low-viscosity solutions of alkaline-earth metal alkoxides in aprotic solvents, method for the production of same and use for the production of Ziegler-Natta catalysts

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 present invention relates to methods for providing an active lithium reservoir to reduce the irreversible initial losses and as a general lithium source of or for electrode materials and lithium batteries, and a powdered lithium-donating material having an electrochemical potential of 0.5 and 2 V vs. Li/Li, which has been selected from the group of lithium hydride, lithium amide, lithium imide and tetra-lithium ammonium hydride, is used as a general lithium source.

Active lithium reservoir for lithium-ion 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

A solvent-free mixture of a crude lithium borate salt and lithium hydride, wherein the lithium hydride is at least 0.001 wt. % and at most 10 wt. %, relative to the weight of crude lithium borate salt, wherein the mixture has a water content of at most 100 &#x3bc;mol/g and an acid content of at most 10 &#x3bc;mol H/g of crude lithium borate salt, method for producing the same, and use thereof for battery electrolytes.

Method for producing low-acid lithium borate salts and mixtures of low-acid lithium borate salts and lithium hydride

A solution of a mixed alkaline earth alkoxide compound with an aluminum compound in an aprotic solvent, and methods of making and using them.

Low-viscosity concentrated solutions of alkaline earth metal alkoxides in aprotic solvents and processes for preparation thereof

A lithium anode containing spherical lithium metal particles with an average diameter of between 5 and 200 &#x3bc;m, which are bonded with a fluorine-free rubber-like binding agent from the groups

Lithium powder anode

A particulate lithium metal composite materials having a layer containing phosphorous and a method for producing said phosphorous-coated lithium metal products, characterized in that melted, droplet-shaped lithium metal is reacted in a hydrocarbon solvent with a phosphorous source that contains the phosphorous in the oxidation stage 3, and use thereof for the pre-lithiation of electrode materials and the production of battery anodes.

Phosphorous-coated lithium metal products, method for production and use thereof

A galvanic cell having a lithium metal or an alloy comprising a lithium metal as anode material, having an electrolyte comprising lithium bis(oxalate)borate and at least one other lithium complex salt in an aprotic solvent or solvent mixture, in the ratio of lithium complex salt in the conducting salt equals 0.01 to 20 mol %.

Galvanic cell having a lithium metal or an alloy comprising a lithium metal as anode material and an electrolyte having lithium . . . complex salt

A particulate lithium metal/lithium sulfide composite material, to a method for producing a LiS@C-coated lithium metal product, and to the use of said lithium metal product. The particulate lithium metal/lithium sulfide composite material has a core-shell morphology, the shell of which is made of a lithium sulfide containing C and the core of which is made of metal lithium. According to the method, the particulate lithium metal/lithium sulfide composite material is produced by reacting melted, drop-shaped lithium metal in a hydrocarbon solvent with a sulfur source selected from the group CS, S, HS, COS, SO, SOor mixtures thereof. The method products according to the invention are used to produce lithium battery electrodes.

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The invention relates to a process for preparing metal difluorochelatoborates, in which a metal bis(chelato)borate of the formula M[BL] is reacted with boron trifluoride and a metal fluoride (MF) and/or a metal salt of the chelating ligand (ML) where M+ is a monovalent cation selected from the group consisting of lithium, sodium, potassium and ammonium NR, where R&#x2550;H, alkyl (C1 to C8) and L is a chelating agent having two terminal oxygen atoms and having the general formula (II), where: when m=1 and Yand Ytogether with Cform a carbonyl group, n=0 or 1 and o=0 or 1 and Rand Rare each, independently of one another, H or alkyl having from one to eight carbon atoms (C1-C8) and Y, Yare each, independently of one another, OR(R&#x2550;C1-C8-alkyl), then n or o&#x2260;1: p=0 or 1 and when n and o=0, p=1; or Y, Y, Y, Yare each, independently of one another, OR(R&#x2550;C1-C8-alkyl), m=1, n=0 or 1, o=1 and p=0; or Cand Care members of a 5- or 6-membered aromatic or heteroaromatic ring (with N, O or S as heteroelement) which can optionally be substituted by alkyl, alkoxy, carboxy or nitrile, where R, R, Yand Yare absent, m=0 or in the case of 1, Yand Ytogether with Cform a carbonyl group and p is 0 or 1, in an organic, aprotic solvent. 

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Frankfurt am Main, Germany

Ute Emmel