Patents Assigned to ALBEMARLE GERMANY GMBH
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Patent number: 12221698Abstract: The invention relates to a process for the production of lithium metal and lithium alloy mouldings, wherein solutions of metallic lithium in ammonia having the composition Li(NH3)4+n and n=0-10 are brought into contact with metallic or electronically conductive deposition substrates and the ammonia is removed at temperatures of ?100 to 100° C. by overflowing with inert gas or at pressures of 0.001 to 700 mbar, so that the remaining lithium is deposited on the deposition substrate or/and it is doped with lithium or alloyed by it.Type: GrantFiled: June 3, 2021Date of Patent: February 11, 2025Assignee: ALBEMARLE GERMANY GMBHInventors: Ulrich Wietelmann, Dirk Dawidowski
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Patent number: 12176518Abstract: The invention relates to a rechargeable lithium battery comprising a composite anode containing as the electrochemically active component one or more metal nitrogen compounds according to the general formulas (I) and/or (II) LixM2z(NH)0.5x+z??(I) LimM2n(NH2)1+n??(II), wherein (I) and (II) are present in any mixing ratio and M2=an alkaline earth element or any mixture thereof, with x=0-4; z=0-2; m=1 or 0; n=1 or 0, where (m+n)=1, a separator, a cathode, containing lithium-insertable compounds selected from metal oxides, lithium metal oxides, lithium oxides and lithium hydroxide and an electrolyte, the electrochemically active component of the composite anode being embedded in a transition metal-containing electronically or mixed-conductive network.Type: GrantFiled: September 5, 2019Date of Patent: December 24, 2024Assignee: ALBEMARLE GERMANY GMBHInventor: Ulrich Wietelmann
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Patent number: 12062785Abstract: The invention relates to a method for producing a rechargeable high-energy battery with an anion-redox-active composite cathode containing lithium hydroxide as the electrochemically active component, which is mixed and contacted with electronically or mixed-conductive transition metals and/or transition metal oxides, so that an electronically or mixed-conductive network is formed, this mixture is applied to a current drain, and the composite cathode thus formed is placed in a cell housing together with a separator, a lithium-conductive electrolyte and a lithium-containing anode, so that an electrochemical cell is present and is subjected to at least one initial forming cycle.Type: GrantFiled: September 5, 2019Date of Patent: August 13, 2024Assignee: ALBEMARLE GERMANY GMBHInventor: Ulrich Wietelmann
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Patent number: 12057573Abstract: The invention relates to composite materials comprising lithiated or partially-lithiated graphite or graphene, and silicon having particles sizes from about 1 ?m to about 100 ?m, 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.Type: GrantFiled: January 6, 2023Date of Patent: August 6, 2024Assignee: ALBEMARLE GERMANY GmbHInventors: Ulrich Wietelmann, Ute Emmel, Christopher Kurth, Stefan Scherer, Thorsten Buhrmester, Gerd Krämer
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Patent number: 11542162Abstract: 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 ?m and BET surface areas between 1 and 100 m2/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° C. and 450° 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.Type: GrantFiled: February 2, 2018Date of Patent: January 3, 2023Assignee: Albemarle Germany GmbHInventors: Hannes Vitze, Vera Nickel, Sebastian Lang, Marc-Christian Müller, Sebastian Pietzner, Armine Plath
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Patent number: 11407769Abstract: The invention relates to methods for CC bond formation using organolithium compounds under continuous flow conditions in a micro or mesoreactor system, wherein an organic substrate is reacted with an alkyl lithium compound in the presence of a donor solvent to form a Li intermediate, which can be reacted in situ or subsequently in a second reaction step with an electrophile to form an organic secondary product, the organolithium compound RLi being used as a solution in a hydrocarbon or hydrocarbon mixture and the RLi concentration being at least 3 M, preferably at least 4 M.Type: GrantFiled: November 13, 2018Date of Patent: August 9, 2022Assignee: Albemarle Germany GmbHInventors: Stefan Schnippering, Ulrich Wietelmann, Nikzad Nikbin, Gary John Tarver
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Patent number: 11236113Abstract: The invention relates to hydrocarbon-soluble halogen or thiolate/magnesium exchange reagents of the general formula R1MgR11-n(OR3)n.LiOR2.(1?n)LiOR3.aDonor in which: R1 is a C1-C8 alkyl and OR2 as well as OR3 are same or different and represent primary, secondary, or tertiary alkoxide residues having 3 to 18 carbon atoms, wherein R2 and/or R3 can for their part contain an alkoxy substituent OR4; a assumes a value of 0 to 2, n assumes a value between 0 and 1, and the donor is an organic molecule containing at least 2 nitrogen atoms.Type: GrantFiled: September 20, 2018Date of Patent: February 1, 2022Assignee: Albemarle Germany GmbHInventors: Paul Knochel, Dorothée Ziegler, Meike Simon
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Patent number: 11180377Abstract: A method for the production of lithium oxide and the use of such lithium oxide is described herein. The method includes reacting lithium carbonate with elemental carbon or a carbon source forming elemental carbon under certain reaction conditions. The reaction may be carried out in containers whose product-contacting surfaces are corrosion resistant to the reactants and products. The lithium oxide obtained according to the method described herein can used for the production of pure lithium hydroxide solutions or for the production of glasses glass ceramics or crystalline ceramics, for example, lithium ion conductive ceramics.Type: GrantFiled: December 18, 2017Date of Patent: November 23, 2021Assignee: ALBEMARLE GERMANY GmbHInventors: Rainer Dietz, Johannes Willems, Dieter Hauk, Ulrich Wietelmann
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Patent number: 11155895Abstract: The disclosed subject matter relates to a method for obtaining cesium from aqueous solutions.Type: GrantFiled: July 9, 2018Date of Patent: October 26, 2021Assignee: Albemarle Germany GmbHInventors: Rainer Dietz, Johannes Willems, David Wohlgemuth, Henrike Rempel
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Patent number: 11145910Abstract: 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/Li+ and lithium rhodanide (LiSCN) as electrolyte component. One or more related methods for providing overcharge protection are also described herein.Type: GrantFiled: October 18, 2019Date of Patent: October 12, 2021Assignee: Albemarle Germany GmbHInventors: Ulrich Wietelmann, Ute Emmel, Irina Wolf, Margret Wohlfahrt-Mehrens, Serife Kaymaksiz Tost, Florian Wilhelm, Mario Wachtler
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Patent number: 11021797Abstract: The invention relates to a stabilized lithium metal powder and to a method for producing the same, the stabilized, pure lithium metal powder having been passivated in an organic inert solvent under dispersal conditions with fatty acids or fatty acid esters according to the general formula (I) R—COOR?, in which R stands for C10-C29 groups and R? for H or C1-C8 groups.Type: GrantFiled: April 14, 2020Date of Patent: June 1, 2021Assignee: Albemarle Germany GmbHInventor: Ulrich Wietelmann
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Patent number: 11018334Abstract: 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): [AR1R2R3R4]Lix (I), or R1R2R3A-O-AR4R5R6 (II), wherein R1R2R3R4R5R6=alkyl (C1-C12), 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 R1 to R6 can 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, R4 is omitted, or with polymers comprising one or more of the elements B, Al, Ga, IType: GrantFiled: April 6, 2018Date of Patent: May 25, 2021Assignee: Albemarle Germany GmbHInventors: Ulrich Wietelmann, Christoph Hartnig, Ute Emmel
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Patent number: 10711326Abstract: The invention relates to a method for the hydrometallurgical recovery of lithium from the lithium manganese oxide-containing fraction of used galvanic cells.Type: GrantFiled: October 9, 2013Date of Patent: July 14, 2020Assignee: Albemarle Germany GmbHInventors: David Wohlgemuth, Mark Andre Schneider, Rebecca Spielau, Johannes Willems, Martin Steinbild, Norbert Kliehm
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Patent number: 10655229Abstract: The invention relates to a stabilized lithium metal powder and to a method for producing the same, the stabilized, pure lithium metal powder having been passivated in an organic inert solvent under dispersal conditions with fatty acids or fatty acid esters according to the general formula (I) R—COOR?, in which R stands for C10-C29 groups and R? for H or C1-C8 groups.Type: GrantFiled: May 15, 2017Date of Patent: May 19, 2020Assignee: Albemarle Germany GmbHInventor: Ulrich Wietelmann
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Patent number: 10544074Abstract: One or more concentrated low-viscosity solutions of alkaline earth alkoxide compounds M(OCH2R6)2-a-b(OR7)a[O(CHR8)nOR9]b in mixture with a metal alkyl compound M(R10R11) in an aprotic solvent and related methods are disclosed herein.Type: GrantFiled: August 12, 2015Date of Patent: January 28, 2020Assignee: Albemarle Germany GmbHInventors: Ulrich Wietelmann, Ute Emmel, Armin Stoll, Florian Kiefer
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Patent number: 10522819Abstract: 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).Type: GrantFiled: February 13, 2015Date of Patent: December 31, 2019Assignee: Albemarle Germany GmbHInventors: Ulrich Wietelmann, Vera Nickel, Stefan Scherer, Ute Emmel, Thorsten Buhrmester, Steffen Haber, Gerd Krämer
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Patent number: 10431818Abstract: 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.Type: GrantFiled: May 14, 2014Date of Patent: October 1, 2019Assignee: Albemarle Germany GmbHInventors: Ulrich Wietelmann, Ute Emmel, Stefan Scherer, Christoph Hartnig
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Patent number: 10403885Abstract: A method of producing an active material for batteries comprising providing electrochemically active particles, optionally comminuting the electrochemically active particles, adding an organic carbon compound, optionally in a suitable organic solvent, and mixing, heating the mixture under protective gas to a temperature above the decomposition limit of the organic compound and below the decomposition temperature of the electrochemically active particles, active materials thus obtained and also corresponding applications and uses.Type: GrantFiled: October 10, 2012Date of Patent: September 3, 2019Assignee: Albemarle Germany GmbHInventors: Stefano Passerini, Sangsik Jeong, Dominic Bresser, Martin Winter
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Patent number: 10160036Abstract: 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 N2, NxHy with 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° C., preferably between 100 and 280° C., and particularly preferably above the melting temperature of lithium of 180.5° C., in an inert organic solvent under dispersion conditions or in an atmosphere that contains a gaseous coating agent containing nitrogen.Type: GrantFiled: April 17, 2014Date of Patent: December 25, 2018Assignee: ALBEMARLE GERMANY GMBHInventors: Ulrich Wietelmann, Christoph Hartnig, Ute Emmel, Vera Nickel
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Patent number: 10144651Abstract: The invention relates to a method for producing aprotic solutions that contain zinc bromide and lithium bromide, the reaction of the reactants to the product being carried out as a one-pot reaction.Type: GrantFiled: December 19, 2014Date of Patent: December 4, 2018Assignee: ALBEMARLE GERMANY GMBHInventors: Peter Rittmeyer, Johannes Willems, Dieter Hauk, Uwe Lischka, Florian Kiefer, Dirk Dawidowski