Patents by Inventor Volker Hennige

Volker Hennige 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).

  • Patent number: 10566593
    Abstract: Robust separator, which has on a substrate and in the intermediate spaces of the substrate, which comprises fibres of an electrically nonconducting material, an electrically nonconductive coating of oxide particles which are adhesively bonded to one another and to the substrate by an inorganic adhesive and comprise at least one oxide, selected from Al2O3, ZrO2 and SiO2, wherein polymer particles are also present in the ceramic coating in addition to the oxide particles of Al2O3, ZrO2 and/or SiO2. These separators are particularly easy to handle, since they are mechanically very stable.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: February 18, 2020
    Assignee: Evonik Degussa GmbH
    Inventors: Christian Hying, Volker Hennige, Gerhard Hoerpel
  • Patent number: 10044015
    Abstract: Robust separator which has, on a substrate and in the voids of the substrate, which comprises fibers of an electrically nonconductive material, an electrically nonconductive coating comprising oxide particles which are adhesively bonded to one another and to the substrate by an inorganic adhesive and comprise at least one oxide selected from Al2O3, ZrO2 and SiO2, polymer particles also being present in the ceramic coating in addition to the oxide particles of Al2O3, ZrO2 and/or SiO2. These separators have particularly good handling properties since they are mechanically very stable.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: August 7, 2018
    Assignee: EVONIK DEGUSSA GmbH
    Inventors: Christian Hying, Volker Hennige, Gerhard Hoerpel
  • Publication number: 20160064712
    Abstract: The invention relates to a separator filled with an electrolyte composition, the separator having a ceramic surface and the electrolyte composition comprising an ionic liquid. The filling with the electrolyte composition can be effected for example by utilizing the separator in a battery, for example a lithium-ion battery, which has been filled with an appropriate electrolyte composition.
    Type: Application
    Filed: November 9, 2015
    Publication date: March 3, 2016
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Gerhard HOERPEL, Volker Hennige, Christian Hying, Sven Augustin, Carsten Jost
  • Patent number: 9214659
    Abstract: 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: Grant
    Filed: February 24, 2005
    Date of Patent: December 15, 2015
    Assignee: EVONIK DEGUSSA GmbH
    Inventors: Gerhard Hörpel, Volker Hennige, Christian Hying, Sven Augustin, Carsten Jost
  • Publication number: 20140212727
    Abstract: Robust separator which has, on a substrate and in the voids of the substrate, which comprises fibers of an electrically nonconductive material, an electrically nonconductive coating comprising oxide particles which are adhesively bonded to one another and to the substrate by an inorganic adhesive and comprise at least one oxide selected from Al2O3, ZrO2 and SiO2, polymer particles also being present in the ceramic coating in addition to the oxide particles of Al2O3, ZrO2 and/or SiO2. These separators have particularly good handling properties since they are mechanically very stable.
    Type: Application
    Filed: March 31, 2014
    Publication date: July 31, 2014
    Applicant: Evonik Degussa GmbH
    Inventors: Christian Hying, Volker Hennige, Gerhard Hoerpel
  • Patent number: 8709638
    Abstract: 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: Grant
    Filed: January 15, 2003
    Date of Patent: April 29, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Volker Hennige, Christian Hying, Gerhard Hoerpel
  • Publication number: 20140044878
    Abstract: Disclosed is a wallcovering assembly consisting of a base material and at least one ceramic coating/topcoat with or without an optional ceramic interlayer.
    Type: Application
    Filed: October 14, 2013
    Publication date: February 13, 2014
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Edwin NUN, Marie-Theres WILKES, Hannelore ARMONEIT, Sigrid BANKEN, Volker HENNIGE, Christian HYING, Gerhard GEIPEL, Norbert KERN, Eckart BERENDES, Christian HERKT-BRUNS, Andreas GUTSCH
  • Patent number: 8597819
    Abstract: 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: Grant
    Filed: July 8, 2009
    Date of Patent: December 3, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Volker Hennige, Christian Hying, Gerhard Hoerpel, Petr Novak, Jens Vetter
  • Patent number: 8568865
    Abstract: Disclosed is a wallcovering assembly consisting of a base material and at least one ceramic coating/topcoat with or without an optional ceramic interlayer.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: October 29, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Edwin Nun, Marie-Theres Wilkes, Hannelore Armoneit, Sigrid Banken, Volker Hennige, Christian Hying, Gerhard Geipel, Norbert Kern, Eckart Berendes, Christian Herkt-Bruns, Andreas Gutsch
  • Patent number: 8337974
    Abstract: The present invention relates to membranes and to a process for making them. The membranes according to the invention comprise a sheetlike flexible substrate having a multiplicity of openings and having a coating on and in said substrate, the material of said substrate being selected from nonwovens of polymeric fibers, said nonwovens having a porosity of more than 50% and said coating being a porous ceramic coating, said substrate preferably being from 10 to 200 ?m in thickness. Such membranes provide a distinctly higher flux than conventional membranes. The membranes are useful as separators for batteries or as a microfiltration membrane.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: December 25, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Volker Hennige, Christian Hying, Gerhard Hoerpel
  • Publication number: 20120308871
    Abstract: 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: Application
    Filed: June 14, 2012
    Publication date: December 6, 2012
    Applicant: Evonik Litarion GmbH
    Inventors: Matthias PASCALY, Christian Hying, Gerhard Hörpel, Volker Hennige
  • Publication number: 20120231304
    Abstract: A device for cooling an electrochemical energy store, particularly a galvanic cell containing lithium, is provided with a cooling agent (209) which has an extinguishing effect in the event of a fire and which flows through or around the energy store, the housing thereof (201), or parts of the energy store or of the housing thereof.
    Type: Application
    Filed: August 19, 2010
    Publication date: September 13, 2012
    Applicant: LI-TEC BATTERY GMBH
    Inventors: Joerg Kaiser, Volker Hennige, Holger Mikus, Tim Schaefer
  • Patent number: 8173305
    Abstract: The invention relates to an electrolyte separator system comprising an ionic liquid, a conductive salt and a ceramic separator, and the use of the electrolyte separator system according to the invention in electrochemical energy storage systems, in particular of lithium metal and lithium ion batteries.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: May 8, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Michael Holzapfel, Petr Novák, Carsten Jost, Anna Prodi-Schwab, Volker Hennige, Christian Hying
  • Patent number: 8163441
    Abstract: Separator-electrode assemblies (SEAs) comprise 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 are bonded together and to the current collector by inorganic adhesive; and a process for their production.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: April 24, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Gerhard Hoerpel, Volker Hennige, Christian Hying, Sven Augustin
  • Patent number: 8142920
    Abstract: The present invention relates to a flexible ceramic membranes which, depending on embodiment, are useful as separators for batteries, especially lithium batteries and also as a process for their production. Ceramic or hybridic membranes have the advantage that, whatever the level of flexibility already achieved, they tend to crumble of 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 fraction which metal oxide particles of different size and which adheres to the polymeric nonwoven through a network constructed by two different adhesion promoters.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: March 27, 2012
    Assignee: EVONIK DEGUSSA GmbH
    Inventors: Volker Hennige, Christian Hying, Gerhard Hoerpel
  • Patent number: 8124279
    Abstract: The invention relates to an electrode material for a lithium ion battery which is distinguished by the fact that the electrode material comprises 5-85% by weight of nanoscale silicon particles which have a BET surface area of from 5 to 700 m2/g and a mean primary particle diameter of from 5 to 200 nm, 0-10% by weight of conductive carbon black, 5-80% by weight of graphite having a mean particle diameter of from 1 ?m to 100 ?m and 5-25% by weight of a binder, the proportions of the components summing to not more than 100% by weight, and to the use of the electrode material according to the invention for the production of lithium ion batteries, and to a lithium ion battery having a negative electrode which comprises the electrode material according to the invention.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: February 28, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Frank-Martin Petrat, Volker Hennige, Evelyn Albrecht, David Lee, Hilmi Buqa, Michael Holzapfel, Petr Novak
  • Patent number: 8105733
    Abstract: A process for producing a separator-electrode assemblies (SEAs) which comprises a porous electrode useful as a positive or negative electrode in a lithium battery and a separator layer applied to this electrode wherein 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 the separator-electrode assembly comprises no organic polymer binder. The process comprising form the porous electrode by applying a suspension comprising active mass particles suspended in a sol or a dispersion of nanoscale active mass particles in a solvent and solidifying the suspension.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: January 31, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Gerhard Hoerpel, Volker Hennige, Christian Hying, Sven Augustin
  • Patent number: 8053102
    Abstract: 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: Grant
    Filed: August 30, 2010
    Date of Patent: November 8, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Volker Hennige, Christian Hying, Gerhard Hoerpel
  • Patent number: 8016896
    Abstract: A separator for an electrochemical cell, comprising (A) a flexible perforate support, (B) a porous first ceramic material which fills the perforations in the support and which (i) has a pore structure which is characterized by an average pore size, and (ii) is suitable for receiving an ion-conducting electrolyte, wherein (C) the electrolyte-contactable pore surface of the first porous ceramic material is covered with fine particles of a further material to extend the use life, the average size of the fine particles being in the range from 0.5 to 30% and preferably in the range from 1 to 15% of the average pore size of the ceramic material.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: September 13, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Volker Hennige, Christian Hying, Gerhard Hoerpel, Petr Novak, Jens Vetter
  • Publication number: 20110206971
    Abstract: 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: Application
    Filed: May 3, 2011
    Publication date: August 25, 2011
    Applicant: DEGUSSA AG
    Inventors: Volker HENNIGE, Christian Hying, Gerhard Hoerpel