Patents by Inventor Gerhard Horpel
Gerhard Horpel 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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Patent number: 9214659Abstract: The invention relates to a separator filled with an electrolyte composition. The separator has a ceramic surface and the electrolyte composition comprises an ionic fluid. Filling with the electrolyte composition can take place, for example, by inserting the separator into a battery, e.g. into a lithium ion battery, which is filled with a corresponding electrolyte composition.Type: GrantFiled: February 24, 2005Date of Patent: December 15, 2015Assignee: EVONIK DEGUSSA GmbHInventors: Gerhard Hörpel, Volker Hennige, Christian Hying, Sven Augustin, Carsten Jost
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Publication number: 20120308871Abstract: The invention relates to a ceramic composite material (1), comprising a planar carrier substrate (2) and a porous coating (4) that is applied onto the carrier substrate (2) and contains ceramic particles (3). The problem underlying the invention is that of further developing a ceramic composite material of type such that lower thicknesses can be achieved while maintaining the high thermal and mechanical stability. Said problem is solved by a ceramic composite material having a polymeric film (2) as the carrier substrate (2), wherein the carrier substrate (2) is provided with a perforation that consists of a plurality of holes (6) arranged at regular intervals, and wherein the perforation is covered by the porous coating (4) at least on one side of the carrier substrate (2). A cross-section of the ceramic composite material according to the invention is shown in FIG. 1.Type: ApplicationFiled: June 14, 2012Publication date: December 6, 2012Applicant: Evonik Litarion GmbHInventors: Matthias PASCALY, Christian Hying, Gerhard Hörpel, Volker Hennige
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Publication number: 20110136400Abstract: The present invention relates to a vapor-pervious water-impervious substrate, preferably a fibrous nonwoven web, which can be used in particular as a textile continuous sheet material, for example as an awning or as an inlet in apparel. The substrate according to the present invention may have self-cleaning properties. The substrate according to the present invention is simple to produce in an at least two-step process wherein a coating on the fibers of the substrate is produced in the first step and then hydrophobic particles are applied to the coated fibers by means of an adhesion promoter.Type: ApplicationFiled: November 3, 2010Publication date: June 9, 2011Applicant: DEGUSSA AGInventors: Volker HENNIGE, Christian HYING, Gerhard HÖRPEL, Markus OLES, Edwin NUN, Bernhard SCHLEICH
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Publication number: 20100323233Abstract: The present invention relates to electrical separators and to a process for making them. An electrical separator is a separator used in batteries and other arrangements in which electrodes have to be separated from each other while maintaining ion conductivity for example. The separator is preferably a thin porous insulating material possessing high ion permeability, good mechanical strength and long-term stability to the chemicals and solvents used in the system, for example in the electrolyte of the battery. In batteries, the separator should fully electrically insulate the cathode from the anode. Moreover, the separator has to be permanently elastic and to follow movements in the system, for example in the electrode pack in the course of charging and discharging.Type: ApplicationFiled: August 30, 2010Publication date: December 23, 2010Applicant: EVONIK DEGUSSA GmbHInventors: Volker Hennige, Christian Hying, Gerhard Hörpel
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Patent number: 7842624Abstract: The present invention relates to a vapor-pervious water-impervious substrate, preferably a fibrous nonwoven web, which can be used in particular as a textile continuous sheet material, for example as an awning or as an inlet in apparel. The substrate according to the present invention may have self-cleaning properties. The substrate according to the present invention is simple to produce in an at least two-step process wherein a coating on the fibers of the substrate is produced in the first step and then hydrophobic particles are applied to the coated fibers by means of an adhesion promoter.Type: GrantFiled: December 21, 2005Date of Patent: November 30, 2010Assignee: Evonik Degussa GmbHInventors: Volker Hennige, Christian Hying, Gerhard Hörpel, Markus Oles, Edwin Nun, Bernhard Schleich
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Publication number: 20100291292Abstract: The present invention relates to electrical separators and to a process for producing them. An electrical separator is a separator used in batteries and other arrangements in which electrodes have to be separated from each other while maintaining ion conductivity for example. The separator is preferably a thin porous insulating material processing high ion perviousness, good mechanical strength and long-term stability to the chemicals and solvents used in the system, for example in the electrolyte of the battery. In batteries, the separator shall fully electrically insulate the cathode from the anode. Moveover, the separator shall be permanently elastic and follow movements in the system, for example in the electrode pack in the course of charging and discharging.Type: ApplicationFiled: July 30, 2010Publication date: November 18, 2010Applicant: EVONIK DEGUSSA GmbHInventors: Volker Hennige, Christian Hying, Gerhard Hörpel
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Publication number: 20100291293Abstract: The present invention relates to separator-electrode units for lithium batteries and also to a process for their production. The separator-electrode units comprise a porous electrode which is useful as a positive electrode (cathode) or negative electrode (anode) in a lithium battery and a separator layer applied to this electrode and are characterized in that the separator-electrode units comprise a purely inorganic separator layer which comprises at least two fractions of metal oxide particles which differ from each other in their average particle size and/or in the metal. More particularly, the separator layer comprises metal oxide particles having an average particle size (Dg) which is greater than the average pore size (d) of the pores of the porous positive electrode that are bonded together by metal oxide particles having a particle size (DO which is smaller than the pores of the porous electrode.Type: ApplicationFiled: July 30, 2010Publication date: November 18, 2010Applicant: EVONIK DEGUSSA GmbHInventors: Volker HENNIGE, Christian Hying, Gerhard Hörpel, Sven Augustin
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Patent number: 7829242Abstract: Separator-electrode assemblies (SEAs) comprising a porous electrode useful as a positive or negative electrode in a lithium battery and a separator layer applied to this electrode, the separator layer being an inorganic separator layer comprising at least two fractions of metal oxide particles different from each other in their average particle size and/or in the metal, and the electrode having active mass particles that are bonded together and to a current collector by an inorganic adhesive; and a process for their production.Type: GrantFiled: October 21, 2004Date of Patent: November 9, 2010Assignee: Evonik Degussa GmbHInventors: Gerhard Hörpel, Volker Hennige, Christian Hying, Sven Augustin
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Patent number: 7759009Abstract: A pyrogenic oxidic powder composed of particles, comprising (i) atoms of an element of groups 3A, 4A, 3B or 4B of the periodic table of the elements, and (ii) oxygen atoms, said particles being characterized by lithium atoms attached to said atoms via an oxygen bridge.Type: GrantFiled: November 5, 2003Date of Patent: July 20, 2010Assignee: Evonik Degussa GmbHInventors: Volker Hennige, Christian Hying, Gerhard Hörpel
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Publication number: 20100000079Abstract: The present invention concerns separator-electrode assemblies for lithium batteries and also a process for their production. The separator-electrode assemblies (SEAS) comprise a porous electrode useful as an electrode, ie. Positive (cathode) or negative (anode) electrode, in a lithium battery and a separator layer applied to this electrode. The separator electrode assembly (SEA) is characterized in that it has an inorganic separator layer comprising at least two fractions of metal oxide particles different from each other in their average particle size and/or in the metal, and an electrode whose active mass particles are bonded together and to the current collector by inorganic adhesive.Type: ApplicationFiled: September 15, 2009Publication date: January 7, 2010Applicant: EVONIK DEGUSSA GmbHInventors: Gerhard Hörpel, Volker Hennige, Christian Hying, Sven Augustin
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Publication number: 20100003401Abstract: The present invention concerns separator-electrode assemblies for lithium batteries and also a process for their production. The separator-electrode assemblies (SEAs) comprise a porous electrode useful as an electrode, ie. Positive (cathode) or negative (anode) electrode, in a lithium battery and a separator layer applied to this electrode. The separator electrode assembly (SEA) is characterized in that it has an inorganic separator layer comprising at least two fractions of metal oxide particles different from each other in their average particle size and/or in the metal, and an electrode whose active mass particles are bonded together and to the current collector by inorganic adhesive.Type: ApplicationFiled: September 15, 2009Publication date: January 7, 2010Applicant: EVONIK DEGUSSA GmbHInventors: Gerhard Hörpel, Volker Hennige, Christian Hying, Sven Augustin
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Publication number: 20090311418Abstract: Electrical separators for batteries, especially lithium batteries, having a shutdown mechanism. A process for their production. An electrical separator is used in batteries and other systems in which electrodes have to be separated from each other while maintaining ion conductivity. Safety is very important in lithium batteries, since in contrast to other types of battery (Pb, NiCd, NiMeH) the solvent for the electrolyte is not water but a combustible solvent. A separator for lithium cells must possess a shutdown mechanism while not being able to melt down. This is achieved by an electrical separator having a shutdown layer which comprises particles which melt at a desired temperature, close the pores of the separator, and so stop ion flow. Since the separator also comprises a porous inorganic (ceramic) layer on a carrier, the cells cannot melt down as a result of a completely melted separator.Type: ApplicationFiled: August 24, 2009Publication date: December 17, 2009Applicant: EVONIK DEGUSSA GmbHInventors: Volker HENNIGE, Christian HYING, Gerhard HÖRPEL
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Publication number: 20090269489Abstract: A separator for an electrochemical cell, comprising (A) a flexible perforate support, and (B) a porous ceramic material which fills the perforations in the support and is suitable for receiving an ion-conducting electrolyte, wherein the porous ceramic material comprises a first porous layer which is characterized by an average pore size and also at least one second porous layer for contacting with an electrode, the second porous layer having an average pore size which is smaller than the average pore size of the first porous layer.Type: ApplicationFiled: July 8, 2009Publication date: October 29, 2009Applicant: Degussa AGInventors: Volker Hennige, Christian Hying, Gerhard Horpel, Petr Novak, Jens Vetter
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Publication number: 20080245735Abstract: The present invention relates to flexible ceramic membranes which, depending on embodiment, are useful as separators for batteries, especially lithium batteries, and also a process for their production. Ceramic or hybridic membranes have the disadvantage that, whatever the level of flexibility already achieved, they tend to crumble off the ceramic coating on bending. This is prevented by the present membranes, which comprise, on and in a polymeric nonwoven, a solidified ceramic coating which is constructed from two fractions of metal oxide particles of different size and which adheres to the polymeric nonwoven through a network constructed by two different adhesion promoters.Type: ApplicationFiled: August 19, 2004Publication date: October 9, 2008Applicant: Degussa AGInventors: Volker Hennige, Christian Hying, Gerhard Horpel
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Publication number: 20080248381Abstract: Separator for an electrochemical cell comprising a flexible perforate carrier having a ceramic coating on and in the carrier, the ceramic coating comprising from 75 to 99 parts by mass of oxidic particles selected from particles of ZrO2, SiO2 and Al2O3 and comprising from 1 to 25 parts by mass of zeolite particles. These separators exhibit distinctly improved ion conductivity after filling with an electrolyte and are useful as separators in lithium ion batteries in particular.Type: ApplicationFiled: August 19, 2004Publication date: October 9, 2008Applicant: Degussa AGInventors: Volker Hennige, Christian Hying, Gerhard Horpel
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Publication number: 20080138700Abstract: The invention relates to a separator filled with an electrolyte composition. The separator has a ceramic surface and the electrolyte composition comprises an ionic fluid. Filling with the electrolyte composition can take place, for example, by inserting the separator into a battery, e.g. into a lithium ion battery, which is filled with a corresponding electrolyte composition.Type: ApplicationFiled: February 24, 2005Publication date: June 12, 2008Applicant: DEGUSSA AGInventors: Gerhard Horpel, Volker Hennige, Christian Hying, Sven Augustin, Carsten Jost
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Publication number: 20080032197Abstract: The present invention concerns separator-electrode assemblies for lithium batteries and also a process for their production. The separator-electrode assemblies (SEAs) comprise a porous electrode useful as an electrode, ie. Positive (cathode) or negative (anode) electrode, in a lithium battery and a separator layer applied to this electrode. The separator electrode assembly (SEA) is characterized in that it has an inorganic separator layer comprising at least two fractions of metal oxide particles different from each other in their average particle size and/or in the metal, and an electrode whose active mass particles are bonded together and to the current collector by inorganic adhesive.Type: ApplicationFiled: October 21, 2004Publication date: February 7, 2008Applicant: DEGUSSA GmbHInventors: Gerhard Horpel, Volker Hennige, Christian Hying, Sven Augustin
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Publication number: 20070099072Abstract: The present invention relates to electrical separators for batteries, especially lithium batteries, having a shutdown mechanism and also a process for their production. An electrical separator is a separator which is used in batteries and other arrangements in which electrodes have to be separated from each other while maintaining ion conductivity for example. Safety is very important in lithium batteries, since in contrast to other types of battery (Pb, NiCd, NiMeH) the solvent for the electrolyte is not water but a flammable solvent, for example organic carbonates. This is why it is absolutely necessary for a separator for lithium cells to possess a suitable shutdown mechanism and at the same time for it not to be able to melt down. This object is achieved by an electrical separator according to the present invention that comprises a shutdown layer which is formed from a porous sheetlike structure.Type: ApplicationFiled: August 19, 2004Publication date: May 3, 2007Applicant: Degussa AGInventors: Volker Hennige, Christian Hying, Gerhard Horpel
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Publication number: 20060172641Abstract: The present invention relates to a vapor-pervious water-impervious substrate, preferably a fibrous nonwoven web, which can be used in particular as a textile continuous sheet material, for example as an awning or as an inlet in apparel. The substrate according to the present invention may have self-cleaning properties. The substrate according to the present invention is simple to produce in an at least two-step process wherein a coating on the fibers of the substrate is produced in the first step and then hydrophobic particles are applied to the coated fibers by means of an adhesion promoter.Type: ApplicationFiled: December 21, 2005Publication date: August 3, 2006Applicant: DEGUSSA AGInventors: Volker Hennige, Christian Hying, Gerhard Horpel, Markus Oles, Edwin Nun, Bernhard Schleich
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Publication number: 20060166085Abstract: The invention relates to separators for lithium batteries and to a process for producing them, and also to their use. The separators of the invention for lithium batteries, based on a sheetlike flexible substrate provided with a plurality of openings and having a porous inorganic electrically insulating coating on and in said substrate, said coating closing the openings in the substrate, the material of the substrate being selected from woven or non-woven electrically nonconductive polymeric fibers and the inorganic electrically conductive coating comprising metal oxide particles, are notable for the fact that the separators have lithium ion conducting properties without the presence of an electrolyte. After filling them with an additional lithium ion conducting electrolyte, the resulting ion conduction is much higher than in the case of conventional combinations of non-lithium ion conducting separators and electrolyte.Type: ApplicationFiled: July 21, 2003Publication date: July 27, 2006Applicant: CREAVIS Gesellschaft fuer Tech. und Innovation mbHInventors: Volker Hennige, Christian Hying, Gerhard Horpel