Capacity compensating electrolyte with sulfite solvent for lithium ion batteries with silicon-based anodes

Capacity compensating electrolyte with sulfite solvent for lithium ion batteries with silicon-based anodes

An electrochemical cell for a lithium ion battery has an anode comprising a silicon-based active material, a cathode comprising a cathode active material, and a capacity compensating electrolyte comprising a linear sulfite-based solvent and a lithium imide salt. A molar ratio of the lithium imide sa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Yan, Kai, Lu, Peng, Zhou, Wei, Hatazawa, Tsuyonobu
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:An electrochemical cell for a lithium ion battery has an anode comprising a silicon-based active material, a cathode comprising a cathode active material, and a capacity compensating electrolyte comprising a linear sulfite-based solvent and a lithium imide salt. A molar ratio of the lithium imide salt to the linear sulfite-based solvent is between 1:5 and 1:1.