Patent · US Active

Electrolyte comprising a phosphite as an additive or co-solvent, lithium rechargeable battery comprising said electrolyte, and method for producing the phosphite

US11901512B2 · kind B2 · utility

0Cited by

4References

10Claims

0Family size

Assignees

Forschungszentrum Jülich GmbH · DE
CONSTRUCTOR UNIVERSITY BREMEN GGMBH · DE

Inventors

Volodymyr Kozel · Bremen, DE
NATASCHA VON ASPERN · Braunschweig, DE
Gerd-Volker Roeschenthaler · Bremen, DE
Martin Winter · Munster, DE
Olesya Stubbmann-Kazakova · Bassum, DE
Isidora Cekic-Laskovic · Munster, DE
Christian Woelke · Kohlenbissen, DE

Key dates

Filing date	Jul 5, 2019
Grant date	Feb 13, 2024
Priority date	—
Expiry date	Feb 16, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.