CARBON MATERIAL COMPOSITION, METHOD FOR PRODUCING CARBON MATERIAL COMPOSITION, NEGATIVE ELECTRODE, AND SECONDARY BATTERY

The present invention provides a carbon material composition comprising: a carbon material (A) which contains graphite having an amorphous carbon substance or a graphite substance, which has two or more peaks in the pore distribution determined by mercury intrusion, and which satisfies y = -0.0084x...

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Bibliographische Detailangaben
Hauptverfasser:	ISHIWATARI, NOBUYUKI, KONDO, HISAKO, YOKOMIZO, MASAKAZU
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS THEREOF ELECTRICITY INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	The present invention provides a carbon material composition comprising: a carbon material (A) which contains graphite having an amorphous carbon substance or a graphite substance, which has two or more peaks in the pore distribution determined by mercury intrusion, and which satisfies y = -0.0084x + 0.13 when y (mL/g) is the cumulative pore volume of pores having diameters no greater than the smallest value between the smallest pore diameter peak and the next peak, and x (%) is the coating percentage of the amorphous carbon substance or the graphite substance of the graphite; and a carbon material (B) having a pellet density of 1.80 g/cm3 or greater. La présente invention concerne une composition de matériau carboné comprenant : un matériau carboné (A) qui contient du graphite ayant une substance de carbone amorphe ou une substance de graphite, qui a deux pics ou plus dans la distribution poreuse déterminée par intrusion de mercure, et qui satisfait y = -0,0084x + 0,13 lorsque y (mL/g) est le volume des pores cumulé des pores ayant des diamètres non supérieurs à la plus petite valeur entre le pic de diamètre de pore le plus petit et le pic suivant, et x (%) est le pourcentage de revêtement de la substance de carbone amorphe ou de la substance de graphite du graphite ; et un matériau carboné (B) ayant une densité de pastilles supérieure ou égale à 1,80 g/cm3.