Non-aqueous electrolyte solution and battery

The invention provides a non-aqueous electrolyte and a battery. The non-aqueous electrolyte provided by the invention comprises hexafluorophosphate, an organic solvent and an additive, and the additive comprises an amine phosphite compound. According to the non-aqueous electrolyte provided by the in...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: SONG BANXIA, LIU DAOTAN
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention provides a non-aqueous electrolyte and a battery. The non-aqueous electrolyte provided by the invention comprises hexafluorophosphate, an organic solvent and an additive, and the additive comprises an amine phosphite compound. According to the non-aqueous electrolyte provided by the invention, the phosphorous acid amine compound is added into the non-aqueous electrolyte as an additive, the phosphorous acid amine compound comprises an amino group and a phosphorous acid group, and the amino group can eliminate hydrofluoric acid and reduce the acidity of the electrolyte, so that the problems of battery interface corrosion, gas production and the like caused by hydrofluoric acid are avoided, and the battery performance is improved; the phosphorous acid group can effectively capture strong Lewis acid phosphorus pentafluoride as Lewis base, trivalent phosphorus has strong reducibility to prevent amine from being oxidized, and the increase of chromaticity in the storage process of the electrolyte is in