POROUS CARBON MATERIAL AND METHOD FOR PRODUCING THE SAME, COMPLEX AND METHOD FOR PRODUCING THE SAME, AND POSITIVE ELECTRODE MATERIAL FOR LITHIUM SULFUR BATTERIES

PROBLEM TO BE SOLVED: To provide a positive electrode of a lithium sulfur battery having high capacity, excellent cycle characteristics, and excellent Coulomb efficiency.SOLUTION: There is provided a porous carbon material with a nitrogen content of 0.3 wt.% or more, a specific surface based on a BE...

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Hauptverfasser:	ISHIKAWA MASAJI, UCHIDA SATOSHI, USUKI SHINYA, YAMAGATA MASANORI, HINAKO HIDENORI
Format:	Patent
Sprache:	eng ; jpn
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:	PROBLEM TO BE SOLVED: To provide a positive electrode of a lithium sulfur battery having high capacity, excellent cycle characteristics, and excellent Coulomb efficiency.SOLUTION: There is provided a porous carbon material with a nitrogen content of 0.3 wt.% or more, a specific surface based on a BET method by nitrogen adsorption-desorption of 1000 m/g or more, and a pore volume based on quenching solid-phase density function technique (QSDFT) of 0.45 cm/g or more.SELECTED DRAWING: None 【課題】本発明が解決しようとする課題は、高容量、サイクル特性、クーロン効率に優れたリチウム硫黄電池の正極を提供することである。【解決手段】窒素含有量が０．３重量％以上、窒素吸脱着法のＢＥＴ法で得られる比表面積が１０００ｍ２／ｇ以上、かつ急冷固相密度関数法（ＱＳＤＦＴ）により得られる細孔容積が０．４５ｃｍ３／ｇ以上である多孔質炭素材料が提供される。【選択図】なし