CATHODE ACTIVE MATERIAL FOR OVERCHARGE PROTECTION IN SECONDARY LITHIUM BATTERIES

A method of manufacturing a battery cathode includes forming a mixture having a lithium metal oxide and an overcharge protection additive, the overcharge protection additive having an operating voltage higher than an operating voltage of the lithium metal oxide. The lithium metal oxide is provided i...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	Bonhomme Frederic C, Taggougui Mohamed, Shi Qingfang, Cho Sung-Jin, Hallac Peter B, Ntepe Alexandre Ndedi, Boone David R
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A method of manufacturing a battery cathode includes forming a mixture having a lithium metal oxide and an overcharge protection additive, the overcharge protection additive having an operating voltage higher than an operating voltage of the lithium metal oxide. The lithium metal oxide is provided in an amount sufficient to provide a desired operating capacity for a lithium ion battery cell, and the overcharge protection additive has a higher operating voltage than the lithium metal oxide such that the overcharge protection additive can undergo reversible lithium removal during overcharging of the lithium ion battery cell. The method also includes contacting the mixture with a current collector.