Patents by Inventor Helmut Moehwald
Helmut Moehwald has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20180006303Abstract: Electrolyte materials for use in electrochemical cells, electrochemical cells comprising the same, and methods of making such materials and cells, are generally described. In some embodiments, the materials, processes, and uses described herein relate to electrochemical cells comprising sulfur and lithium such as, for example, lithium sulfur batteries.Type: ApplicationFiled: July 12, 2017Publication date: January 4, 2018Applicant: Sion Power CorporationInventors: Yuriy V. Mikhaylik, Igor P. Kovalev, John D. Affinito, Helmut Moehwald, Ruediger Schmidt, Anna Cristadoro, Ingrid Haupt, Raimund Pietruschka
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Patent number: 9853287Abstract: Electrolyte materials for use in electrochemical cells, electrochemical cells comprising the same, and methods of making such materials and cells, are generally described. In some embodiments, the materials, processes, and uses described herein relate to electrochemical cells comprising sulfur and lithium such as, for example, lithium sulfur batteries. The electrolyte can comprise a polymeric material and, in some cases, an absorbed auxiliary material. For example, the electrolyte material can be capable of forming a gel, and the auxiliary material can comprise an electrolyte solvent. In some instances, the electrolyte material can comprise at least one organic (co)polymer selected from polyethersulfones, polyvinylalcohols (PVOH) and branched polyimides (HPI). The non-fluid material in the electrolyte, when configured for use, can, alone or in combination with the optional absorbed auxiliary material, have a yield strength greater than that of lithium metal, in some embodiments.Type: GrantFiled: August 24, 2011Date of Patent: December 26, 2017Assignee: Sion Power CorporationInventors: Yuriy V. Mikhaylik, Igor P. Kovalev, John D. Affinito, Helmut Moehwald, Ruediger Schmidt, Anna Cristadoro, Ingrid Haupt, Raimund Pietruschka
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Patent number: 9577243Abstract: The present invention relates to a solid composite for use in the cathode of a lithium-sulphur electric current producing cell wherein the solid composite comprises 1 to 75 wt.-% of expanded graphite, 25 to 99 wt.-% of sulphur, 0 to 50 wt.-% of one or more further conductive agents other than expanded graphite, and 0 to 50 wt.Type: GrantFiled: May 26, 2011Date of Patent: February 21, 2017Assignee: Sion Power CorporationInventors: Ruediger Schmidt, Alexander Panchenko, Bastian Ewald, Philip Hanefeld, Sorin Ivanovici, Helmut Moehwald, Igor P. Kovalev
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Publication number: 20140045070Abstract: Electrochemical cell comprising (A) at least one anode as component (A), (B) at least one cathode as component (B), (C) at least one non-aqueous electrolyte as component (C), (D) at least one separator positioned between anode (A) and cathode (B), as component (D), characterized in that separator (D) is manufactured from at least one polyimide selected from branched condensation products of (a) at least one polycarboxylic acid having at least 3 COOH groups per molecule or an anhydride or ester thereof, and (b) and at least one compound, selected from (b1) at least one polyamine having on average more than two amino groups per molecule and (b2) at least one polyisocyanate having on average more than two isocyanate groups per molecule.Type: ApplicationFiled: May 15, 2012Publication date: February 13, 2014Applicant: BASF SEInventors: Anna Mueller-Cristadoro, Helmut Moehwald, Bernd Bruchmann, Raimund Pietruschka, Ingrid Haupt
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Patent number: 8609789Abstract: The present invention relates to halogen-free, oligomeric or polymeric phosphonic acids made up of units of the general formula (I) —[(O)m—{R1(X)n(Y)o}pR1(X)q]r—[(O)s—R5(X)t]v—??(I), where: X is —P?O(OH)2, Y is carbonyl or sulfonyl, R1, R5 are, independently of one another, divalent or polyvalent, substituted or unsubstituted, heteroatom-free or heteroatom- comprising aromatic radicals, m, o, s are each, independently of one another, 0 or 1, n, q, t are each, independently of one another, 0 or an integer from 1 to 8, with n and s not simultaneously being 0, r, v are each, independently of one another, from 0 to 1, with the sum of r and v being from 0.95 to 1.Type: GrantFiled: February 12, 2007Date of Patent: December 17, 2013Assignee: BASF SEInventors: Helmut Moehwald, Thorsten Bock, Rolf Muelhaupt
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Publication number: 20130189550Abstract: The present invention relates to a novel composite which comprises at least one base body composed of nonwoven as component (A), at least one nanocomposite as component (B), at least one polyether or at least one polyether-comprising radical as component (C) and optionally a lithium salt as component (D). The invention further relates to a process for producing the novel composite, its use in separators for electrochemical cells and also specific starting compounds which can be used for producing nanocomposites (B).Type: ApplicationFiled: January 23, 2013Publication date: July 25, 2013Inventors: Nicole Janssen, Arno Lange, Helmut Moehwald, Oliver Gronwald
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Publication number: 20130164635Abstract: The present invention relates to a solid composite for use in the cathode of a lithium- sulphur electric current producing cell wherein the solid composite comprises 1 to 75 wt.-% of expanded graphite, 25 to 99 wt.-% of sulphur, 0 to 50 wt.-% of one or more further conductive agents other than expanded graphite, and 0 to 50 wt.Type: ApplicationFiled: May 26, 2011Publication date: June 27, 2013Applicant: Sion Power CorporationInventors: Ruediger Schmidt, Alexander Panchenko, Bastian Ewald, Philip Hanefeld, Sorin Ivanovici, Helmut Moehwald, Igor P. Kovalev
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Publication number: 20130118980Abstract: The present invention relates to a polymeric material obtainable by reaction of (A) at least one polyimide selected from condensation products of (a) at least one polyisocyanate having on average at least two isocyanate groups per molecule and (b) at least one polycarboxylic acid having at least 3 COOH groups per molecule or anhydride thereof, (B) at least one diol or triol.Type: ApplicationFiled: November 14, 2012Publication date: May 16, 2013Inventors: ANNA MUELLER-CRISTADORO, Helmut Moehwald, Jelan Kuhn
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Publication number: 20120082901Abstract: Li-based anodes for use in an electric current producing cells having long life time and high capacity are provided. In certain embodiments, the Li-based anode comprises at least one anode active Li-containing compound and a composition comprising at least one polymer, at least one ionic liquid, and optionally at least one lithium salt. The composition may be located between the at least one Li-containing compound and the catholyte used in the electric current producing cell. In some embodiments, the at least one polymer may be incompatible with the catholyte. This configuration of components may lead to separation between the lithium active material of the anode and the catholyte. Processes for preparing the Li-based anode and to electric current producing cells comprising such an anode are also provided.Type: ApplicationFiled: September 30, 2011Publication date: April 5, 2012Applicants: BASF SE, Sion Power CorporationInventors: Rudiger Schmidt, Daher Michael Badine, Helmut Moehwald, Igor Kovalev, Yuriy V. Mikhaylik
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Publication number: 20120082872Abstract: Spiro ammonium salts as an additive for electrolytes in electric current producing cells, in particular electric current producing cells comprising a Li-based anode, are provided. In some embodiments, the electric current producing cell comprises a cathode, a Li-based anode, and at least one electrolyte wherein the electrolyte contains at least one spiro ammonium salt.Type: ApplicationFiled: September 30, 2011Publication date: April 5, 2012Applicants: BASF SE, Sion Power CorporationInventors: Rudiger Schmidt, Daher Michael Badine, Xiao Steimle, Helmut Moehwald, Igor Kovalev, Yuriy V. Mikhaylik
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Publication number: 20120052339Abstract: Electrolyte materials for use in electrochemical cells, electrochemical cells comprising the same, and methods of making such materials and cells, are generally described. In some embodiments, the materials, processes, and uses described herein relate to electrochemical cells comprising sulfur and lithium such as, for example, lithium sulfur batteries. The electrolyte can comprise a polymeric material and, in some cases, an absorbed auxiliary material. For example, the electrolyte material can be capable of forming a gel, and the auxiliary material can comprise an electrolyte solvent. In some instances, the electrolyte material can comprise at least one organic (co)polymer selected from polyethersulfones. The non-fluid material in the electrolyte, when configured for use, can, alone or in combination with the optional absorbed auxiliary material, have a yield strength greater than that of lithium metal, in some embodiments. In some embodiments, the electrochemical cell (e.g.Type: ApplicationFiled: August 24, 2011Publication date: March 1, 2012Applicants: BASF SE, Sion Power CorporationInventors: Yuriy V. Mikhaylik, Igor Kovalev, Helmut Moehwald, Rudiger Schmidt
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Publication number: 20120052397Abstract: Electrolyte materials for use in electrochemical cells, electrochemical cells comprising the same, and methods of making such materials and cells, are generally described. In some embodiments, the materials, processes, and uses described herein relate to electrochemical cells comprising sulfur and lithium such as, for example, lithium sulfur batteries. The electrolyte can comprise a polymeric material and, in some cases, an absorbed auxiliary material. For example, the electrolyte material can be capable of forming a gel, and the auxiliary material can comprise an electrolyte solvent. In some instances, the electrolyte material can comprise at least one organic (co)polymer selected from polyethersulfones, polyvinylalcohols (PVOH) and branched polyimides (HPI). The non-fluid material in the electrolyte, when configured for use, can, alone or in combination with the optional absorbed auxiliary material, have a yield strength greater than that of lithium metal, in some embodiments.Type: ApplicationFiled: August 24, 2011Publication date: March 1, 2012Applicants: BASF SE, Sion Power CorporationInventors: Yuriy V. Mikhaylik, Igor Kovalev, John D. Affinito, Helmut Moehwald, Rudiger Schmidt, Anna Cristadoro, Ingrid Haupt, Raimund Pietruschka
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Patent number: 8022165Abstract: Process for preparing polymeric aromatic phosphonates and also polymeric aromatic phosphonates which can be prepared by the process of the invention and blends comprising these polymeric aromatic phosphonates and at least one further polymer and also films, composites and membranes comprising these polymers or blends, the use of the membranes of the invention in fuel cells or in separation technology and also fuel cells comprising the membranes of the invention.Type: GrantFiled: February 13, 2007Date of Patent: September 20, 2011Assignee: BASF SEInventors: Helmut Moehwald, Thorsten Bock, Rolf Muelhaupt
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Publication number: 20100291462Abstract: The invention relates to a process for producing catalyst coated membranes for electrochemical devices, which comprises the steps A) production of a first semifinished product by application of a first ionomer layer to a first carrier, application of an anode catalyst layer to the first ionomer layer using a first catalyst ink, drying of the anode catalyst layer, B) production of a second semifinished product by application of a second ionomer layer to a second carrier, application of a cathode catalyst layer to the second ionomer layer using a second catalyst ink, drying of the cathode catalyst layer, C) removal of the first and second carrier from the first and second ionomer layer, respectively, and joining of the first semifinished product to the second semifinished product by joining of the first ionomer layer to the second ionomer layer.Type: ApplicationFiled: August 15, 2006Publication date: November 18, 2010Inventors: Sven Thate, Alexander Khvorost, Helmut Moehwald, Ingolf Hennig
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Publication number: 20090253840Abstract: Process for preparing polymeric aromatic phosphonates and also polymeric aromatic phosphonates which can be prepared by the process of the invention and blends comprising these polymeric aromatic phosphonates and at least one further polymer and also films, composites and membranes comprising these polymers or blends, the use of the membranes of the invention in fuel cells or in separation technology and also fuel cells comprising the membranes of the invention.Type: ApplicationFiled: February 13, 2007Publication date: October 8, 2009Applicant: BASF SEInventors: Helmut Möhwald, Thorsten Bock, Rolf Mülhaupt
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Patent number: 7408083Abstract: A process is described for preparing diaminodiarylmethanes comprising the steps a) reacting an aromatic amine with a methylene-donating agent in the presence of homogeneous acid catalysts, b) removing the homogeneous acid catalyst from the reaction product, c) working up and purifying the reaction product, which comprises removing the homogeneous acid catalyst from the reaction mixture by adsorption to a solid adsorbent.Type: GrantFiled: June 25, 2004Date of Patent: August 5, 2008Assignee: BASF AktiengesellschaftInventors: Ulrich Steinbrenner, Eckhard Stroefer, Martin Sohn, Veronika Quaschning, Helmut Moehwald, Kai Thiele, Filip Deberdt, Jan D. Jacobs, Rolf Pinkos
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Patent number: 7118694Abstract: A mixture Ia which comprises a composition IIa consisting of a) 1 to 95% by weight of a solid III, preferably a basic solid III, having a primary particle size of 5 nm to 20 microns, and b) 5 to 99% by weight of a polymeric mass IV obtainable by polymerizing b1) 5 to 100% by weight, based on the mass IV of a condensation product V of ?) at least one compound VI which is capable to react with a carboxylic acid or a sulfonic acid or a derivative thereof or a mixture of two or more thereof, and ?) at least one mole per mole of the compound VI of a carboxylic acid or a sulfonic acid VII which exhibits at least one radically polymerizable functional group, or a derivative thereof or a mixture of two or more thereof and b2) 0 to 95% by weight, based on the mass IV, of a further compound VIII having an average molecular weight (number average) of at least 5000 and having polyether segments in the main or side chain, wherein the proportion by weight of the composition IIa in the mixture Ia is 1 to 100% by weighType: GrantFiled: April 29, 2002Date of Patent: October 10, 2006Assignee: BASF AktiengesellschaftInventors: Bernd Bronstert, Helmut Möhwald
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Patent number: 6991874Abstract: The compositions comprise: (a) from 1 to 99% by weight of a pigment (I) having a primary particle size of from 5 nm to 100 ?m which is a solid Ia or a compound Ib which acts as cathode material in electrochemical cells or a compound Ic which acts as anode material in electrochemical cells or a mixture of the solid Ia with the compound Ib or the compound Ic, (b) from 1 to 99% by weight of a polymeric material (II) which comprises: (IIa) from 1 to 100% by weight of a polymer or copolymer (IIa) which has, as part of the chain, at the end(s) of the chain and/or laterally on the chain, reactive groups (RG) which are capable of crosslinking reactions under the action of heat and/or UV radiation, and (IIb) from 0 to 99% by weight of at least one polymer or copolymer (IIb) which is free of reactive groups RG.Type: GrantFiled: May 4, 1999Date of Patent: January 31, 2006Assignee: BASF AktiengesellschaftInventors: Helmut Möhwald, Gerhard Dötter, Rainer Blum, Peter Keller, Stephan Bauer, Bernd Bronstert
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Patent number: 6949285Abstract: A membrane comprising a composition including (a) 1 to 99 wt-% of at least one polyurethane elastomer comprising at least one hard segment and at least one soft segment, and (b) 99 to 1 wt-% of a solid, wherein said solid is incorporated in said at least one polyurethane elastomer.Type: GrantFiled: December 2, 1999Date of Patent: September 27, 2005Assignee: BASF AktiengesellschaftInventors: Tekeshi Tobinaga, Klemens Mathauer, Bernd Bronstert, Helmut Möhwald
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Patent number: 6746803Abstract: A composite comprises at least one first layer which includes a composite comprising (a) from 1 to 99% by weight of a solid (I) with a primary particle size of from 5 nm to 100 &mgr;m or a mixture made from at least two solids, (b) from 99 to 1% by weight of a polymeric binder (II) obtainable by polymerizing b1) from 5 to 100% by weight, based on the binder (II), of a condensation product III made from at least one compound IV which is capable of reacting with a carboxylic acid or with a sulfonic acid or with a derivative or with a mixture of two or more of these, and at least one mol per mole of compound IV of a carboxylic or sulfonic acid V which has at least one functional group capable of free-radical polymerization, or of a derivative of these or of a mixture of two or more of these and b2) from 0 to 95% by weight, based on the binder (II), of another compound VII with an average molecular weight (number average) of at least 5000 having polyether segments in a main or side chain, where the at leaType: GrantFiled: October 9, 2001Date of Patent: June 8, 2004Assignee: BASF AktiengesellschaftInventors: Stephan Bauer, Bernd Bronstert, Helmut Möhwald