Lithiumsekundärbatterie mit Verbesserter Sicherheit

Details

Veröffentlichungs-Nr.

EP4749746

Anmeldetag

13. März 2025

Veröffentlichung

25. September 2025

Rechtsraum

EP

Abstract

An electrolyte composition for a lithium secondary battery according to an aspect of the present disclosure includes a lithium salt, an electrolyte additive, and a non-aqueous organic solvent. The electrolyte additive includes an inorganic compound, the non-aqueous organic solvent includes a cyclic ester-based solvent in an amount of about 60 vol.% or more and less than 100 vol.%, and the electrolyte composition exhibits a heat flow of about 30.0 W/g or less within a range of about 250 °C to 350 °C when the heat flow measurement is performed on a mixture containing a negative electrode active material of a 100% charged lithium secondary battery and the electrolyte composition, at a weight ratio of about 1:0.5.

Anmelder

Firma

LG Energy Solution, Ltd.

Land

🇰🇷 Südkorea