NONAQUEOUS SECONDARY BATTERY

PROBLEM TO BE SOLVED: To provide a nonaqueous secondary battery with easy production, high volume energy density, and high cycle characteristics. SOLUTION: The nonaqueous secondary battery comprises a positive electrode, a negative electrode, and a nonaqueous electrolyte containing a lithium salt, a...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	KUSANO TERUHIKO, YADA SHIZUKUNI, OKANO YUKIKO, YAMAZAKI SATOSHI, HAGA TAKESHI, KURIYAMA KAZUYA, OGAWA KAZUHIRO
Format:	Patent
Sprache:	eng
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:	PROBLEM TO BE SOLVED: To provide a nonaqueous secondary battery with easy production, high volume energy density, and high cycle characteristics. SOLUTION: The nonaqueous secondary battery comprises a positive electrode, a negative electrode, and a nonaqueous electrolyte containing a lithium salt, and the negative electrode made of polycyclic aromatic hydrocarbon manufactured by heat reaction of a raw material containing pitch as a main component, especially the hyderocarbon having an atomic ratio of hydrogen/carbon (H/C) of 0.18-0.25, a specific surface area by a BET process of 0.1-50 m2, a real density of 1.45 g/cm3or more is mixed with graphitized meso carbon microbeads in a mass ratio of 70:30 to 40:60 to manufacture a nagative active material, and the density of the negative electrode is made to 1.1 g/cm3or more. COPYRIGHT: (C)2005,JPO&NCIPI