Patents by Inventor NATASCHA VON ASPERN

NATASCHA VON ASPERN 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).

  • Electrolyte comprising a phosphite as an additive or co-solvent, lithium rechargeable battery comprising said electrolyte, and method for producing the phosphite
    Patent number: 11901512
    Abstract: An electrolyte includes at least one lithium salt, at least one first organic solvent having a dielectric constant of >90 at 40° C., at least one second organic solvent having a boiling point of <110° C., and at least one phosphite having the formula (I) R1 is selected from an n-propoxy group, an iso-propoxy group, a tert-butoxy group, an n-pentafluoropropoxy group, an n-trifluoropropoxy group, an iso-hexafluoropropoxy group, or a tert-nonafluorobutoxy group. R2, R3, R4, and R5 are each selected, independently of one another, from H, a trifluoromethyl group, or a C2-C6-alkyl group which is substituted with a trifluoromethyl group.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: February 13, 2024
    Assignees: FORSCHUNGSZENTRUM JUELICH GMBH, CONSTRUCTOR UNIVERSITY BREMEN GGMBH
    Inventors: Volodymyr Kozel, Natascha Von Aspern, Gerd-Volker Roeschenthaler, Martin Winter, Olesya Stubbmann-Kazakova, Isidora Cekic-Laskovic, Christian Woelke
  • IMIDAZOLIDINYLIDE COMPOUND FOR USE AS A SHUT-DOWN ADDITIVE FOR LITHIUM ION BATTERIES AND ELECTROLYTE AND BATTERY
    Publication number: 20230099524
    Abstract: An imidazolidinylide compound for use as a shut-down additive for a lithium-ion battery. The imidazolidinylide compound has a formula (I), wherein, R1 to R4, each independently the other, is a linear C1- to C16-alkyl group, a branched C1- to C16-alkyl group, a C2- to C16-alkenyl group, a C3- to C8-cycloalkyl group, or a C3- to C16-arene group, wherein at least one of R2 and R3 may also be H, R1 to R4, each independently of the other, is completely, partially or not fluorinated, and R1 to R3 may each also contain O as a heteroatom.
    Type: Application
    Filed: February 9, 2021
    Publication date: March 30, 2023
    Applicants: JACOBS UNIVERSITY BREMEN GGMBH, FORSCHUNGSZENTRUM JUELICH GMBH
    Inventors: GERD-VOLKER ROESCHENTHALER, ISIDORA CEKIC-LASKOVIC, NATASCHA VON ASPERN, MARTIN WINTER, MYKHAILO SHEVCHUK
  • ELECTROLYTE COMPRISING A PHOSPHITE AS AN ADDITIVE OR CO-SOLVENT, LITHIUM RECHARGEABLE BATTERY COMPRISING SAID ELECTROLYTE, AND METHOD FOR PRODUCING THE PHOSPHITE
    Publication number: 20210273263
    Abstract: An electrolyte includes at least one lithium salt, at least one first organic solvent having a dielectric constant of >90 at 40° C., at least one second organic solvent having a boiling point of <110° C., and at least one phosphite having the formula (I) R1 is selected from an n-propoxy group, an iso-propoxy group, a tert-butoxy group, an n-pentafluoropropoxy group, an n-trifluoropropoxy group, an iso-hexafluoropropoxy group, or a tert-nonafluorobutoxy group. R2, R3, R4, and R5 are each selected, independently of one another, from H, a trifluoromethyl group, or a C2-C6-alkyl group which is substituted with a trifluoromethyl group.
    Type: Application
    Filed: July 5, 2019
    Publication date: September 2, 2021
    Applicants: FORSCHUNGSZENTRUM JUELICH GMBH, JACOBS UNIVERSITY BREMEN GGMBH
    Inventors: VOLODYMYR KOZEL, NATASCHA VON ASPERN, GERD-VOLKER ROESCHENTHALER, MARTIN WINTER, OLESYA STUBBMANN-KAZAKOVA, ISIDORA CEKIC-LASKOVIC, CHRISTIAN WOELKE