Verfahren zur Herstellung einer Lithiumsekundärbatterie und Lithiumsekundärbatterie

Details

Veröffentlichungs-Nr.

EP4773308

Anmeldetag

25. Juli 2025

Veröffentlichung

29. Januar 2026

Rechtsraum

EP

Abstract

The present specification relates to a method for manufacturing a lithium secondary battery and a lithium secondary battery. According to one embodiment of the present invention, provided is a method for manufacturing a lithium secondary battery, the method comprising the steps of: injecting a first electrolyte solution into a battery case in which an electrode assembly including a positive electrode and a negative electrode is accommodated; performing a first activation process after injecting the first electrolyte solution; injecting a second electrolyte solution different from the first electrolyte solution into the battery case in which the first activation process has been performed; and performing a second activation process after injecting the second electrolyte solution, wherein the lithium salt concentration of the first electrolyte solution is greater than the lithium salt concentration of the second electrolyte solution, and the difference between the lithium salt concentrations of the first electrolyte solution and the second electrolyte solution satisfies a specific range.

Anmelder

Firma

LG Energy Solution, Ltd.

Land

🇰🇷 Südkorea