Lithiumsekundärbatterie mit Elektrolytadditiv und Verfahren zur Herstellung der Lithiumsekundärbatterie

Details

Veröffentlichungs-Nr.

EP3444879

Aktenzeichen

EP18188875

Anmeldetag

14. August 2018

Veröffentlichung

25. November 2020

Erteilung

25. November 2020

Rechtsraum

EP

IPC

H01M4/505H01M4/525H01M10/0567

Abstract

The present invention relates to a lithium secondary battery including an electrolyte additive and method of preparing the lithium secondary battery. A lithium secondary battery includes: a positive electrode; a negative electrode; and an electrolyte between the positive electrode and the negative electrode, wherein the positive electrode includes a positive active material represented by Formula 1, and the electrolyte includes a lithium salt, a non-aqueous solvent, and a sulfone compound represented by Formula 2. Formula 1Li x Ni y M 1-y O 2-z A z wherein, in Formula 1, 0.9¤x¤1.2, 0.7¤y¤0.98, 0¤z<0.2, M comprises Al, Mg, Mn, Co, Fe, Cr, V, Ti, Cu, B, Ca, Zn, Zr, Nb, Mo, Sr, Sb, W, Bi, or a combination thereof, and A is a monovalent anion, a divalent anion, or a combination thereof, and in Formula 2, R 1 and R 2 are each independently a halogen, an unsubstituted C 1 -C 10 alkyl group, or a C 1 -C 10 alkyl group substituted with a halogen, and a1 and a2 are each independently an integer from 0 to 5.

Anmelder

Firmen

Samsung Electronics Co., Ltd.
Samsung SDI Co., Ltd.

Land

🇰🇷 Südkorea

Fachgebiete