METHOD FOR PRE-SODIATION OF NEGATIVE ELECTRODE, PRE-SODIATED NEGATIVE ELECTRODE, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Disclosed is a method for pre-sodiation of a negative electrode, including the steps of: interposing a negative electrode between a sodium (Na) ion-supplying metal sheet and a separator to prepare a simple cell; dipping the simple cell in an electrolyte for pre-sodiation; and electrochemically charg...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	CHAE, Oh-Byong, HWANG, Seung-Hae, KIM, Ye-Ri
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Disclosed is a method for pre-sodiation of a negative electrode, including the steps of: interposing a negative electrode between a sodium (Na) ion-supplying metal sheet and a separator to prepare a simple cell; dipping the simple cell in an electrolyte for pre-sodiation; and electrochemically charging the simple cell dipped in the electrolyte for pre-sodiation to carry out pre-sodiation of the negative electrode. Also disclosed are a pre-sodiated negative electrode, including: a current collector; a negative electrode active material layer disposed on at least one surface of the current collector and including a negative electrode active material; and a coating layer formed on the surface of the negative electrode active material layer and including Na-carbonate and Na, and a lithium secondary battery including the pre-sodiated negative electrode.