Patents by Inventor Thomas Woehrle

Thomas Woehrle 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).

  • Publication number: 20240128429
    Abstract: A method for producing a cathode for a lithium-ion battery includes providing a cathode collector carrier film and applying a coating compound onto at least one main surface of the cathode collector carrier film. The coating compound contains a particulate auxiliary material. The coating compound is subsequently compressed to form a cathode film on the cathode collector carrier film. During the compression of the coating compound, the cathode collector carrier film is perforated. A lithium-ion battery is also described.
    Type: Application
    Filed: February 11, 2022
    Publication date: April 18, 2024
    Inventors: Hideki OGIHARA, Thomas WOEHRLE
  • Publication number: 20240105905
    Abstract: A method for producing an anode for a lithium-ion battery includes providing an anode collector carrier film and applying a coating compound onto at least one main surface of the anode collector carrier film. The coating compound contains a particulate auxiliary material. The coating compound is subsequently compressed to form an anode film on the anode collector carrier film. During the compression of the coating compound, the anode collector carrier film is perforated. A lithium-ion battery is also described.
    Type: Application
    Filed: February 11, 2022
    Publication date: March 28, 2024
    Inventors: Hideki OGIHARA, Thomas WOEHRLE
  • Publication number: 20230253548
    Abstract: A cathode active material for a lithium ion battery includes particles having a core-shell structure, where each of the particles has a core including a core material and a shell including a shell material. The core material is selected from the group consisting of: layered oxides, including overlithiated layered oxides, compounds having an olivine structure, compounds having a spinel structure, and combinations thereof. The shell material includes a spinel compound. The shell material and/or the core material is at least partially delithiated.
    Type: Application
    Filed: July 7, 2021
    Publication date: August 10, 2023
    Inventors: Roland JUNG, Thomas WOEHRLE
  • Publication number: 20230216031
    Abstract: A device for monitoring the use of a pressure container system of a piece of equipment, such as a motor vehicle, is designed to ascertain equipment-side usage data relating to previous use of the pressure container system. The device is additionally designed to compare the equipment-side usage data with equipment-external usage data relating to the previous use of the pressure container system and to initiate one or more measures relating to further use of the pressure container system on the basis of the comparison.
    Type: Application
    Filed: July 7, 2021
    Publication date: July 6, 2023
    Inventors: Roland JUNG, Thomas WOEHRLE
  • Publication number: 20230187649
    Abstract: A lithium ion battery includes a cathode having a composite cathode active material, and an anode having an anode active material, where the composite cathode active material has at least a first and a second cathode active material. The first and the second cathode active materials each are selected from the group consisting of layered oxides, compounds having an olivine structure, compounds having a spinel structure, and combinations thereof. The first cathode active material has a degree of lithiation a and the second cathode active material has a degree of lithiation b, where a<1, b<1, and |a?b|<0.1 before a first discharging process and/or charging process of the lithium ion battery. The anode active material is pre-lithiated before the first discharging process and/or charging process of the lithium ion battery. A method for manufacturing is also described.
    Type: Application
    Filed: June 23, 2021
    Publication date: June 15, 2023
    Inventors: Roland JUNG, Thomas WOEHRLE
  • Publication number: 20230152390
    Abstract: A method for detecting soft shorts in an electrode assembly includes the following steps. First, the electrode assembly having at least one anode and at least one cathode is provided, a separator having an open porosity being inserted between each anode and cathode. Subsequently, the impedance of the electrode assembly is measured and the measured impedance is compared with a reference value. A soft short is detected if the measured impedance deviates from the reference value. The electrode assembly is not laminated, and the impedance is measured prior to the introduction of electrolyte and the installation of the electrode assembly in a galvanic cell are provided. A test stand for the method and a production line using the test stand are disclosed.
    Type: Application
    Filed: May 5, 2021
    Publication date: May 18, 2023
    Inventors: Martin GOUVERNEUR, Thomas WOEHRLE
  • Publication number: 20230140175
    Abstract: Please substitute the new Abstract submitted herewith for the original Abstract: A method for producing an electrode, especially for a lithium-ion battery, includes providing an uncoated carrier material, machining the carrier material to produce at least one single sheet, coating the single sheet, and adjusting the porosity of the electrode at the single sheet level.
    Type: Application
    Filed: February 2, 2021
    Publication date: May 4, 2023
    Inventors: Sung-Jin KIM, Thomas WOEHRLE
  • Publication number: 20230089030
    Abstract: A method for producing an electrode, especially for a lithium-ion battery, includes coating a carrier material, machining the carrier material to produce at least one single sheet, and adjusting the porosity of the electrode at the single sheet level.
    Type: Application
    Filed: February 2, 2021
    Publication date: March 23, 2023
    Inventors: Sung-Jin KIM, Thomas WOEHRLE
  • Publication number: 20230016431
    Abstract: A lithium ion battery includes a cathode, which has a composite cathode active material, and an anode, which has an anode active material. The composite cathode active material includes at least a first and a second cathode active material, wherein the second cathode active material is a compound having an olivine structure, and wherein at least a lithiation degree of the first cathode active material differs from a lithiation degree of the second cathode active material. Prior to electrolyte filling or the first discharging and/or charging process of the lithium ion battery, the lithiation degree of the first cathode active material is higher than the lithiation degree of the second cathode active material. Prior to electrolyte filling or the first discharging and/or charging process of the lithium ion battery, the anode active material is pre-lithiated. A method for producing a lithium ion battery of this kind is also described.
    Type: Application
    Filed: November 9, 2020
    Publication date: January 19, 2023
    Inventors: Roland JUNG, Hideki OGIHARA, Thomas WOEHRLE
  • Publication number: 20220416226
    Abstract: A lithium ion battery includes a cathode having a composite cathode active material and an anode having an anode active material. The composite cathode active material includes at least one first and one second cathode active material, wherein the second cathode active material is a compound having a spinel structure and wherein at least a lithiation degree of the first cathode active material differs from a lithiation degree of the second cathode active material. A degree of lithiation a of the first cathode active material is higher than a degree of lithiation b of the second cathode active material before electrolyte filling and before the first discharging and/or charging process of the lithium ion battery. The anode active material is pre-lithiated before the electrolyte filling and the first discharging and/or charging process of the lithium ion battery. A method for producing such a lithium ion battery is also described.
    Type: Application
    Filed: November 9, 2020
    Publication date: December 29, 2022
    Inventors: Roland JUNG, Hideki OGIHARA, Thomas WOEHRLE
  • Publication number: 20220412296
    Abstract: A component (3; 3?) for an injection system (1), in particular a high-pressure line (5) or a fluid distributor (2), including a base body (14; 13), at which a high-pressure input (15; 12) and at least one high-pressure output (16 through 19; 12?) are provided, at least the base body (14; 13) being at least essentially formed from an austenitic or martensitic material. It is provided that the material is developed as a grain-stabilized material.
    Type: Application
    Filed: September 25, 2020
    Publication date: December 29, 2022
    Inventors: Patrick Fayek, Ralf Weber, Thomas Woehrle, Tobias Steiner
  • Patent number: 11508994
    Abstract: A method for producing a lithium-ion cell is provided. The electrochemically active coating of an electrode is brought into contact with an electrolyte or an auxiliary liquid before a winding or cutting operation. This method is suitable in particular for continuously producing lithium-ion cells by means of processes proceeding at high speed, such as winding processes.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: November 22, 2022
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Nikolaos Tsiouvaras, Thomas Woehrle
  • Publication number: 20220285661
    Abstract: A method for producing a composite electrode for a lithium or lithium-ion battery comprises: providing a current collector having a main surface; forming a first electrode layer on the main surface of the current collector, wherein a first adhesion is formed between the current collector and the first electrode layer along the main surface; forming a second electrode layer on the first electrode layer, wherein the first and second electrode layer contact each other along a contact surface opposite the main surface of the current collector, the second electrode layer is adhesively connected to the first electrode layer along the contact surface; and compressing the first and second electrode layer by means of a compression device, wherein, during the compressing, a pressure element of the compression device exerts a pressure on at least one part of the surface of the second electrode layer opposite the contact surface, and a second adhesion can form between the pressure element and the part of the second elect
    Type: Application
    Filed: July 17, 2020
    Publication date: September 8, 2022
    Inventors: Sung-Jin KIM, Hideki OGIHARA, Nikolaos TSIOUVARAS, Thomas WOEHRLE
  • Publication number: 20220263075
    Abstract: A cathode active material comprises lithium peroxide, wherein the lithium peroxide is provided at least in part with a coating, and wherein the coating comprises a non-metal inorganic compound. Furthermore, a cathode for a lithium-ion battery, and a lithium-ion battery, are specified, which comprise such a cathode active material. In addition, the use of coated lithium peroxide in the production of a lithium-ion battery is described.
    Type: Application
    Filed: July 17, 2020
    Publication date: August 18, 2022
    Inventors: Roland JUNG, Hideki OGIHARA, Thomas WOEHRLE
  • Patent number: 10971752
    Abstract: A composite cathode is provided which includes a collector, an active cathode material, a binder, a solid inorganic lithium-ion conductor and a liquid electrolyte. The solid inorganic lithium ion conductor is present in the composite cathode in a higher volume and weight proportion than the liquid electrolyte. A method for forming the composite cathode is also provided, and a lithium ion battery is provided which includes a composite cathode having a collector, an active cathode material, a binder, a solid inorganic lithium ion conductor and a liquid electrolyte.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: April 6, 2021
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Thomas Woehrle, Saskia Lupart, Nikolaos Tsiouvaras, Hideki Ogihara
  • Publication number: 20210050621
    Abstract: An electrically non-conductive solid electrolyte material is provided for an electrochemical secondary cell, the material has pores.
    Type: Application
    Filed: March 20, 2019
    Publication date: February 18, 2021
    Inventor: Thomas WOEHRLE
  • Patent number: 10923708
    Abstract: A sintered electrode having a sintered composite material is provided. The composite material contains (A) active-material particles, (B) solid-state electrolyte particles from an inorganic lithium ion conductor, (C) a particulate conductivity additive from an electrically conductive material and (D) a fibrous material, with weight proportions N(A) to N(D) of components (A) to (D) in the composite material satisfy the following: N (A)>N (B)>N (C), N (D). A solid-state lithium-ion battery containing such sintered electrode is also provided.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: February 16, 2021
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Dave Andre, Simon Nuernberger, Jan-Oliver Roth, Saskia Schneider, Dennis Schuenemann, Barbara Stiaszny, Christoph Stinner, Nikolaos Tsiouvaras, Thomas Woehrle, Tobias Zeilinger, Sandra Zugmann
  • Publication number: 20210028499
    Abstract: A method for producing a lithium-ion cell is provided. The electrochemically active coating of an electrode is brought into contact with an electrolyte or an auxiliary liquid before a winding or cutting operation. This method is suitable in particular for continuously producing lithium-ion cells by means of processes proceeding at high speed, such as winding processes.
    Type: Application
    Filed: October 14, 2020
    Publication date: January 28, 2021
    Inventors: Nikolaos TSIOUVARAS, Thomas WOEHRLE
  • Patent number: 10847842
    Abstract: A method for producing a lithium-ion cell is provided. The electrochemically active coating of an electrode is brought into contact with an electrolyte or an auxiliary liquid before a winding or cutting operation. This method is suitable in particular for continuously producing lithium-ion cells by means of processes proceeding at high speed, such as winding processes.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: November 24, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Nikolaos Tsiouvaras, Thomas Woehrle
  • Patent number: 10727472
    Abstract: A cathode in a state prior to a first charging process is provided having an active cathode material and lithium peroxide. A lithium ion battery or an electrochemical cell includes the same cathode. A method is also provided for forming a lithium ion battery, and a lithium ion battery is provided which includes a cathode having an active cathode material, a separator, an anode having an active anode material, and an electrolyte, wherein after a formed cell is fully discharged, the active cathode material holds the same lithium content as before the formation process.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: July 28, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Thomas Woehrle, Holger Hain, Hideki Ogihara, Thorsten Langer