Patents by Inventor Katja Ramona KRETSCHMER

Katja Ramona KRETSCHMER 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).

  • Process for making a coated cathode active material, and coated cathode active material
    Patent number: 12224440
    Abstract: Disclosed herein is a process for making a coated cathode active material, where the process includes the following steps: (a) providing an electrode active material according to general formula Li1+xTM1?xO2, where TM is a combination of metals according to general formula (I), and x is in the range of from zero to 0.2, with a moisture content in the range of from 500 to 1,500 ppm, (b) reacting the electrode active material with a silicon alkoxide and an alkyl aluminum compound in one or more sub-steps, and (c) heat-treating the material so obtained in an oxygen-containing atmosphere at a temperature in the range of from 100 to 400° C. for 10 minutes to 4 hours.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: February 11, 2025
    Assignees: BASF SE, KARLSRUHER INSTITUT FUER TECHNOLOGIE
    Inventors: Matteo Bianchini, Pascal Hartmann, Torsten Brezesinski, Katja Ramona Kretschmer, Soeren Lukas Dreyer
  • PROCESS FOR MAKING A COATED CATHODE ACTIVE MATERIAL, AND COATED CATHODE ACTIVE MATERIAL
    Publication number: 20240282961
    Abstract: Disclosed herein is a process for making a coated cathode active material, where the process includes the following steps: (a) providing an electrode active material according to general formula Li1+xTM1?xO2, where TM is a combination of metals according to general formula (I), and x is in the range of from zero to 0.2, with a moisture content in the range of from 500 to 1,500 ppm, (b) reacting the electrode active material with a silicon alkoxide and an alkyl aluminum compound in one or more sub-steps, and (c) heat-treating the material so obtained in an oxygen-containing atmosphere at a temperature in the range of from 100 to 400° C. for 10 minutes to 4 hours.
    Type: Application
    Filed: June 14, 2022
    Publication date: August 22, 2024
    Inventors: Matteo BIANCHINI, Pascal HARTMANN, Torsten BREZESINSKI, Katja Ramona KRETSCHMER, Soeren Lukas DREYER