Patents by Inventor Marcus Wegner

Marcus Wegner 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: 10686176
    Abstract: A lithium-sulfur cell includes a lithium-containing anode, a sulfur-containing cathode and a separator arranged between the lithium-containing anode and the sulfur-containing cathode. To suppress a shuttle mechanism and to prevent a loss of active material, the separator includes a base layer and a polysulfide barrier layer. The polysulfide barrier layer is formed on the cathode side of the separator.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: June 16, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Marcus Wegner, Jean Fanous, Jens Grimminger, Martin Tenzer
  • Patent number: 10673043
    Abstract: A separator for an energy store. The separator may be used in a lithium-sulfur battery in particular. To achieve improved cycle stability, the separator has at least one first layer and at least one second layer, the at least one first layer containing a material having an affine property with respect to at least one active electrode material, and the at least one second layer containing a material having a repellent property with respect to at least one active electrode material. The at least one first layer and the at least one second layer may be situated directly adjacent to one another. Also described is an energy store including the separator.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: June 2, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Marcus Wegner, Jens Grimminger, Martin Tenzer, Jean Fanous
  • Patent number: 10472430
    Abstract: A method of producing a cross-linked polyacrylonitrile-sulfur composite material, in which polyacrylonitrile is reacted with sulfur and at least one cross-linking agent to form a cross-linked polyacrylonitrile-sulfur composite material and the cross-linking agent includes at least one functional group, selected independently of one another from an ethylenically unsaturated functional group, an epoxy group and a thiirane group. In addition, the invention relates to a polyacrylonitrile-sulfur composite material, a cathode material, an alkali metal-sulfur cell or an alkali metal-sulfur battery as well as to an energy store.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: November 12, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Joerg Thielen, Marcus Wegner
  • Patent number: 10374212
    Abstract: A battery system includes at least one lithium cell with an electrolyte having at least one polymer which is configured to be impregnated with an electrolyte fluid. In order to increase the capacity, the life and the safety of the battery system, the battery system further includes at least one electrolyte fluid metering device, by which at least one component of the electrolyte fluid can be supplied to the lithium cell and/or by which electrolyte fluid can be discharged from the lithium cell.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: August 6, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Marcus Wegner, Matthias Mueller, Martin Tenzer
  • Patent number: 10020490
    Abstract: In a method for producing an anode for a lithium cell, and/or a lithium cell as well as anodes and lithium cells of this type, to extend the service life of the lithium cell and to selectively form a first protective layer including electrolytic decomposition products, on an anode including metallic lithium, a first electrolyte is applied on the anode ex situ, i.e., prior to assembling the lithium cell to be produced. To stabilize the first protective layer, a second protective layer is applied in a subsequent method step.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: July 10, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Marcus Wegner, Jens Grimminger, Martin Tenzer, Timm Lohmann
  • Publication number: 20180191026
    Abstract: A separator of a lithium cell or battery includes (I) a protective layer that includes at least one single lithium-ion conducting polyelectrolyte, a lithium-ion conducting or lithium-ion conductive block copolymer, and/or an inorganic lithium-ion conductor, and (II) a contact layer that includes at least one polymer electrolyte made of (a) a lithium-ion conductive polymer that includes a main chain and at least one side chain and (b) at least one lithium conducting salt.
    Type: Application
    Filed: December 21, 2017
    Publication date: July 5, 2018
    Inventors: Joerg Thielen, Jean Fanous, Marcus Wegner
  • Patent number: 9991565
    Abstract: A sensor system for detecting a leak of a system component from an electrochemical storage system, in particular a lithium-ion battery. To determine a defect in the electrochemical storage system, the sensor system includes a reaction chamber containing a detection component, and a measuring device for determining a physical variable within the reaction chamber. The value of the physical variable is changeable by a chemical reaction of the system component with the detection component, so that a leak of the system component is detectable via a change in the value of the physical variable. Also described is a sensor element for such a sensor system, an electrochemical storage system having such a sensor system or sensor element, the use of such a sensor system or sensor element, and a mobile or stationary system, for example an electric vehicle, equipped with the sensor system, the sensor element, or the storage system.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: June 5, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Kathy Sahner, Jens Grimminger, Marcus Wegner, Dirk Liemersdorf
  • Patent number: 9935311
    Abstract: The invention relates to a method for manufacturing an electrode for an electrochemical energy store, including the following steps: a) providing a base body; b) applying an active material matrix to the base body, the active material matrix including at least one binding agent, if necessary, an active material (1), and a pore forming agent (3), the pore forming agent (3) being soluble in a solvent, in which additional components of the active material matrix are insoluble or are soluble only under certain conditions; c) if necessary, drying the active material matrix; d) rinsing out the pore forming agent (3) by treating the active material matrix with the solvent and e) if necessary, introducing an active material into the produced pores of the active material matrix. Using such a method, a high cycle stability of the electrode may be implemented in a particularly simple and cost-effective way. The invention also relates to a method for manufacturing an electrochemical energy store.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: April 3, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Jens Grimminger, Marcus Wegner
  • Patent number: 9804090
    Abstract: An energy store system, including at least one cell element situated in a cell region having an anode, a cathode and an electrolyte system that is situated between the anode and the cathode and that is particularly at least partially liquid, the anode, the cathode and/or the electrolyte system being configured so that, as a function of a charging or discharging process of the cell element, functioning material is situated in the electrolyte system, and the functional material situated in the electrolyte system being ascertainable qualitatively and/or quantitatively. Because of such an energy store system, operating states of an energy store or a cell may be ascertained particularly simply and accurately. Also described is a related state detection system.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: October 31, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Marcus Wegner, Jens Grimminger, Martin Tenzer, Jean Fanous
  • Patent number: 9761912
    Abstract: A battery, particularly a lithium-metal battery or a lithium-ion battery, having at least one galvanic cell surrounded by a cell housing. To increase the safety of the battery and to close up again a cell opened by a safety device or by a leakage, the inner chamber of the cell housing of the at least one cell includes a first chemical component, a chamber bordering on at least one section of the outer side of the housing including a second chemical component; a solid reaction product being developable by the chemical reaction of the first and second chemical components. The first component is containable in the electrolyte of the cell and the second component in a cooling and/or tempering arrangement. Also described is a cooling and/or tempering arrangement based on it, and an electrolyte, an electrolytic liquid, a safety system, a method and a mobile or stationary system.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: September 12, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Martin Tenzer, Jens Grimminger, Jean Fanous, Marcus Wegner
  • Publication number: 20170158783
    Abstract: A method of producing a cross-linked polyacrylonitrile-sulfur composite material, in which polyacrylonitrile is reacted with sulfur and at least one cross-linking agent to form a cross-linked polyacrylonitrile-sulfur composite material and the cross-linking agent includes at least one functional group, selected independently of one another from an ethylenically unsaturated functional group, an epoxy group and a thiirane group. In addition, the invention relates to a polyacrylonitrile-sulfur composite material, a cathode material, an alkali metal-sulfur cell or an alkali metal-sulfur battery as well as to an energy store.
    Type: Application
    Filed: December 1, 2016
    Publication date: June 8, 2017
    Inventors: Joerg Thielen, Marcus Wegner
  • Patent number: 9595716
    Abstract: An electrode for an energy store, in particular for a lithium-ion battery. To achieve a particularly good and long-term stable capacitance, the electrode includes an active material, optionally a binder, optionally a conductive additive, and a sorption agent; intermediate stages of the active material arising during a charging and/or discharging procedure of the energy store may be immobilized by the sorption agent. Furthermore, also described is a method for manufacturing an electrode for an energy store, and the use of a sorption agent for manufacturing an electrode for an electrochemical energy store.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: March 14, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Marcus Wegner, Jens Grimminger, Martin Tenzer, Jean Fanous
  • Publication number: 20160372755
    Abstract: An electrochemical cell that includes a negative electrode, a positive electrode, a protective layer situated on the negative electrode, which separates the negative electrode from the positive electrode, and an electrolyte, the negative electrode at least partially including metallic lithium, and the protective layer situated on the negative electrode being formed of a composite material, including at least one first material and one second material. Also described is a corresponding method for manufacturing an electrochemical cell.
    Type: Application
    Filed: October 23, 2014
    Publication date: December 22, 2016
    Applicant: Robert Bosch GmbH
    Inventors: Ulrich SAUTER, Marcus Wegner, Joerg Thielen, Barbara Stiaszny
  • Patent number: 9484575
    Abstract: In a method for preparing a cathode material for an alkali-sulfur cell, e.g., a lithium-sulfur cell, at least one polyacrilonitrile-sulfur composite material and elemental sulfur are mixed, in order to increase the voltage, the capacitance and the energy density.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: November 1, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Marcus Wegner, Jens Grimminger, Martin Tenzer, Jean Fanous
  • Publication number: 20160226097
    Abstract: A method for manufacturing a lithium-ion conducting composite material, in particular a lithium-ion conducting functional layer for a lithium cell. The composite material or the functional layer is formed from a mass which includes particles of at least one inorganic material designed for forming a lithium-ion conducting network without sintering, and at least one polymeric binder. Functional layers of this type, a lithium cell, a lithium battery provided therewith, and to their use are also described.
    Type: Application
    Filed: September 5, 2014
    Publication date: August 4, 2016
    Inventors: Marcus Wegner, Jean Fanous, Martin Tenzer
  • Publication number: 20160226071
    Abstract: A lithium-ion battery having an anode, a cathode, a separator, and an electrolyte connected to the anode and to the cathode, encompassing at least one lithium salt as an electrolyte salt and one solvent solubilizing the lithium salt, wherein the lithium-ion battery contains at least one cation exchanger that can release Li+ and bind H+, and that is in contact with the electrolyte. A method is also described for preventing the dissolution of metals out of a cathode of a lithium-ion battery and/or damage to an SEI layer of an anode of the lithium-ion battery, encompassing bringing an electrolyte of the lithium-ion battery into contact with at least one cation exchanger that can release Li+ and bind H+.
    Type: Application
    Filed: September 2, 2014
    Publication date: August 4, 2016
    Inventors: Joerg Ziegler, Marcus Wegner, Joerg Thielen, Jens Grimminger
  • Patent number: 9252425
    Abstract: The invention relates to a method for preparing a polyacrylonitrile-sulfur composite material, in which, polyacrylonitrile is converted to cyclized polyacrylonitrile, and the cyclized polyacrylonitrile is reacted with sulfur to form a polyacrylonitrile-sulfur composite material. By a separation of the preparation method into two partial reactions, the reaction conditions are advantageously able to be optimized for the respective reactions and a cathode material is able to be provided for alkali-sulfur cells with improved electrochemical properties. In addition, the invention relates to a polyacrylonitrile-sulfur composite material, a cathode material, an alkali-sulfur cell or an alkali-sulfur battery as well as to an energy store.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: February 2, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Marcus Wegner, Jens Grimminger, Martin Tenzer, Jens Fanous
  • Publication number: 20150171416
    Abstract: The invention relates to a method for manufacturing an electrode for an electrochemical energy store, including the following steps: a) providing a base body; b) applying an active material matrix to the base body, the active material matrix including at least one binding agent, if necessary, an active material (1), and a pore forming agent (3), the pore forming agent (3) being soluble in a solvent, in which additional components of the active material matrix are insoluble or are soluble only under certain conditions; c) if necessary, drying the active material matrix; d) rinsing out the pore forming agent (3) by treating the active material matrix with the solvent and e) if necessary, introducing an active material into the produced pores of the active material matrix. Using such a method, a high cycle stability of the electrode may be implemented in a particularly simple and cost-effective way. The invention also relates to a method for manufacturing an electrochemical energy store.
    Type: Application
    Filed: April 19, 2013
    Publication date: June 18, 2015
    Inventors: Jens Grimminger, Marcus Wegner
  • Publication number: 20150147634
    Abstract: A battery pouch cell film composite having at least one metal layer, at least two adhesion promotion layers, and at least two polymer layers, at least one of the polymer layers being configured in self-healing fashion and that layer having in the interior physically delimited regions that contain at least one compound capable of polymerization.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 28, 2015
    Inventors: Andreas NEUMANN, Jens Grimminger, Marcus Wegner
  • Publication number: 20150147464
    Abstract: A method for producing an electrode for electrochemical storage systems includes: applying an electrode slurry onto at least one side of a current collector for the formation of an electrode coating on the current collector, the electrode slurry having at least one active material; and applying an inhibitor material, with a predetermined width, onto adjacent regions of the electrode coating applied on the current collector, the inhibitor material being impermeable to liquid active material and to forms of the active material dissolved in the electrolyte.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 28, 2015
    Inventors: Jens Grimminger, Marcus Wegner