Battery

A battery with a high battery voltage at charging and improved energy density is provided. A cathode (12) and an anode (14) are laminated with a separator (15) sandwiched therebetween which is impregnated with an electrolyte. The cathode (12) has a cathode active material including a lithium composi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Adachi, Momoe, Endo, Takuya, Shibamoto, Goto, Iwakoshi, Yasunobu, Fujita, Shigeru
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
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Beschreibung
Zusammenfassung:	A battery with a high battery voltage at charging and improved energy density is provided. A cathode (12) and an anode (14) are laminated with a separator (15) sandwiched therebetween which is impregnated with an electrolyte. The cathode (12) has a cathode active material including a lithium composite oxide which contains lithium, at least either cobalt or nickel, and oxygen. The battery voltage at charging is 4.25 V or more. The moisture content in the electrolyte is 20 ppm mass ratio or less to the electrolyte. This inhibits metal eluting from the lithium composite oxide even at high voltages.