Patents Assigned to LITRONIK ENTWICKLUNGS GMBH
  • Patent number: 9368284
    Abstract: An aluminum electrolytic capacitor including an anode electrode, and a method for producing the anode electrode. The method includes providing an aluminum electrolyte including an ionic liquid and an aluminum salt, galvanically deposing an aluminum on an aluminum foil formed from the aluminum electrolyte, and anodically oxidizing a surface of the aluminum foil. The ionic liquid includes a pyrrolidinium cation and a halogenide. The aluminum electrolyte includes 50-70 mol. % of the aluminum salt based on a total substance amount of the ionic liquid and the aluminum salt. The galvanic deposition includes and is based on a deposition temperature ranging from 20° C. to 100° C., a current density ranging from 1 to 100 mA/cm2, an applied potential ranging from ?0.1 V to ?1.0 V based on a potential of an aluminum reference electrode, and a deposition rate ranging from 1 to 50 ?m/h.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: June 14, 2016
    Assignee: LITRONIK ENTWICKLUNGS GMBH
    Inventors: Alexander Rzany, Bernhard Hensel, Nicolas Bartilla, Bernd Pretzlaff
  • Publication number: 20150062782
    Abstract: An aluminum electrolytic capacitor including an anode electrode, and a method for producing the anode electrode. The method includes providing an aluminum electrolyte including an ionic liquid and an aluminum salt, galvanically deposing an aluminum on an aluminum foil formed from the aluminum electrolyte, and anodically oxidizing a surface of the aluminum foil. The ionic liquid includes a pyrrolidinium cation and a halogenide. The aluminum electrolyte includes 50-70 mol. % of the aluminum salt based on a total substance amount of the ionic liquid and the aluminum salt. The galvanic deposition includes and is based on a deposition temperature ranging from 20° C. to 100° C., a current density ranging from 1 to 100 mA/cm2, an applied potential ranging from ?0.1V to ?1.0 V based on a potential of an aluminum reference electrode, and a deposition rate ranging from 1 to 50 ?m/h.
    Type: Application
    Filed: July 25, 2014
    Publication date: March 5, 2015
    Applicant: LITRONIK ENTWICKLUNGS GMBH
    Inventors: Alexander Rzany, Bernhard Hensel, Nicolas Bartilla, Bernd Pretzlaff
  • Patent number: 8941020
    Abstract: A lead feedthrough of an electrical functional unit, in particular a capacitor or medical electronic implant, which comprises a hollow conductive flange and a contact piece disposed in the cavity thereof and which is electrically insulated and sealed with respect to the flange, wherein the flange can be connected to a lead of a first type, and the contact piece can be connected to a lead of a second type in the functional unit, wherein, in a circumferential section of the flange, a tangentially extending gap is provided, which is delimited on one side by a flange body and on the other side by a tab integrally formed on the body, or by a separate pressure piece, for the tangential insertion and affixation of the lead of the first type.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: January 27, 2015
    Assignee: Litronik Entwicklungs GmbH
    Inventors: Bernd Pretzlaff, Hans-Juergen Kuehl
  • Patent number: 8674239
    Abstract: The present disclosure relates to feedthrough contacts for electronic components of the type used in implantable stimulators such as, for example, cardiac pacemakers, ICDs, CRT-Ds, and/or neurostimulators. A feedthrough conductor includes a metallic electrode, wherein a part of the metallic electrode (2) has a locally enlarged diameter in the region of the passage through an opening (3) in the component housing (4). The ridge (5) formed as a result exerts pressure onto the elastic sealing material (6) disposed around the electrode (2) in a tubular shape, thereby producing a hermetic seal between the electrode surface and the sealing material (6), and between the sealing material (6) and the wall (4) of the housing opening (3). The feedthrough conductor is sealed using an adhesive material (7) on the outer side of the electronic component.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: March 18, 2014
    Assignee: LITRONIK Entwicklungs GmbH
    Inventors: Bernd Pretzlaff, Holger Lippitz
  • Publication number: 20120205150
    Abstract: The present disclosure relates to feedthrough contacts for electronic components of the type used in implantable stimulators such as, for example, cardiac pacemakers, ICDs, CRT-Ds, and/or neurostimulators. A feedthrough conductor includes a metallic electrode, wherein a part of the metallic electrode (2) has a locally enlarged diameter in the region of the passage through an opening (3) in the component housing (4). The ridge (5) formed as a result exerts pressure onto the elastic sealing material (6) disposed around the electrode (2) in a tubular shape, thereby producing a hermetic seal between the electrode surface and the sealing material (6), and between the sealing material (6) and the wall (4) of the housing opening (3). The feedthrough conductor is sealed using an adhesive material (7) on the outer side of the electronic component.
    Type: Application
    Filed: February 1, 2012
    Publication date: August 16, 2012
    Applicant: LITRONIK ENTWICKLUNGS GMBH
    Inventors: Bernd Pretzlaff, Holger Lippitz