Patents Assigned to ALBEMARLE GERMANY GMBH
  • Patent number: 11542162
    Abstract: 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: Grant
    Filed: February 2, 2018
    Date of Patent: January 3, 2023
    Assignee: Albemarle Germany GmbH
    Inventors: Hannes Vitze, Vera Nickel, Sebastian Lang, Marc-Christian Müller, Sebastian Pietzner, Armine Plath
  • Patent number: 11407769
    Abstract: 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: Grant
    Filed: November 13, 2018
    Date of Patent: August 9, 2022
    Assignee: Albemarle Germany GmbH
    Inventors: Stefan Schnippering, Ulrich Wietelmann, Nikzad Nikbin, Gary John Tarver
  • Patent number: 11236113
    Abstract: 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: Grant
    Filed: September 20, 2018
    Date of Patent: February 1, 2022
    Assignee: Albemarle Germany GmbH
    Inventors: Paul Knochel, Dorothée Ziegler, Meike Simon
  • Patent number: 11180377
    Abstract: 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: Grant
    Filed: December 18, 2017
    Date of Patent: November 23, 2021
    Assignee: ALBEMARLE GERMANY GmbH
    Inventors: Rainer Dietz, Johannes Willems, Dieter Hauk, Ulrich Wietelmann
  • Patent number: 11155895
    Abstract: The disclosed subject matter relates to a method for obtaining cesium from aqueous solutions.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: October 26, 2021
    Assignee: Albemarle Germany GmbH
    Inventors: Rainer Dietz, Johannes Willems, David Wohlgemuth, Henrike Rempel
  • Patent number: 11145910
    Abstract: 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: Grant
    Filed: October 18, 2019
    Date of Patent: October 12, 2021
    Assignee: Albemarle Germany GmbH
    Inventors: Ulrich Wietelmann, Ute Emmel, Irina Wolf, Margret Wohlfahrt-Mehrens, Serife Kaymaksiz Tost, Florian Wilhelm, Mario Wachtler
  • Patent number: 11021797
    Abstract: 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: Grant
    Filed: April 14, 2020
    Date of Patent: June 1, 2021
    Assignee: Albemarle Germany GmbH
    Inventor: Ulrich Wietelmann
  • Patent number: 11018334
    Abstract: 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, I
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: May 25, 2021
    Assignee: Albemarle Germany GmbH
    Inventors: Ulrich Wietelmann, Christoph Hartnig, Ute Emmel
  • Patent number: 10711326
    Abstract: The invention relates to a method for the hydrometallurgical recovery of lithium from the lithium manganese oxide-containing fraction of used galvanic cells.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: July 14, 2020
    Assignee: Albemarle Germany GmbH
    Inventors: David Wohlgemuth, Mark Andre Schneider, Rebecca Spielau, Johannes Willems, Martin Steinbild, Norbert Kliehm
  • Patent number: 10655229
    Abstract: 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: Grant
    Filed: May 15, 2017
    Date of Patent: May 19, 2020
    Assignee: Albemarle Germany GmbH
    Inventor: Ulrich Wietelmann
  • Patent number: 10544074
    Abstract: 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: Grant
    Filed: August 12, 2015
    Date of Patent: January 28, 2020
    Assignee: Albemarle Germany GmbH
    Inventors: Ulrich Wietelmann, Ute Emmel, Armin Stoll, Florian Kiefer
  • Patent number: 10522819
    Abstract: 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: Grant
    Filed: February 13, 2015
    Date of Patent: December 31, 2019
    Assignee: Albemarle Germany GmbH
    Inventors: Ulrich Wietelmann, Vera Nickel, Stefan Scherer, Ute Emmel, Thorsten Buhrmester, Steffen Haber, Gerd Krämer
  • Patent number: 10431818
    Abstract: 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: Grant
    Filed: May 14, 2014
    Date of Patent: October 1, 2019
    Assignee: Albemarle Germany GmbH
    Inventors: Ulrich Wietelmann, Ute Emmel, Stefan Scherer, Christoph Hartnig
  • Patent number: 10403885
    Abstract: 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: Grant
    Filed: October 10, 2012
    Date of Patent: September 3, 2019
    Assignee: Albemarle Germany GmbH
    Inventors: Stefano Passerini, Sangsik Jeong, Dominic Bresser, Martin Winter
  • Patent number: 10160036
    Abstract: 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: Grant
    Filed: April 17, 2014
    Date of Patent: December 25, 2018
    Assignee: ALBEMARLE GERMANY GMBH
    Inventors: Ulrich Wietelmann, Christoph Hartnig, Ute Emmel, Vera Nickel
  • Patent number: 10144651
    Abstract: 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: Grant
    Filed: December 19, 2014
    Date of Patent: December 4, 2018
    Assignee: ALBEMARLE GERMANY GMBH
    Inventors: Peter Rittmeyer, Johannes Willems, Dieter Hauk, Uwe Lischka, Florian Kiefer, Dirk Dawidowski
  • Patent number: 9809657
    Abstract: A solution of a mixed alkaline earth alkoxide compound with an aluminum compound in an aprotic solvent, and methods of making and using them.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: November 7, 2017
    Assignee: ALBEMARLE GERMANY GMBH
    Inventors: Ulrich Wietelmann, Armin Stoll, Florian Kiefer, Ute Emmel