NEGATIVE ELECTRODE, ENERGY STORAGE DEVICE, AND ENERGY STORAGE APPARATUS

A negative electrode includes a negative active material layer containing a silicon-based negative active material, a rubber-based binder, and a carbon nanotube, wherein a content of the silicon-based negative active material in the negative active material layer is 68 mass % or more, a content of t...

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Bibliographische Detailangaben
Hauptverfasser:	TANOI, Akihito, NAKAJIMA, Nobuhiro, SHIMIZU, Takashi, ICHIKAWA, Shinnosuke, NISHIKAWA, Heisuke
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	A negative electrode includes a negative active material layer containing a silicon-based negative active material, a rubber-based binder, and a carbon nanotube, wherein a content of the silicon-based negative active material in the negative active material layer is 68 mass % or more, a content of the rubber-based binder in the negative active material layer is 3.0 mass % or more, and a content of the carbon nanotube in the negative active material layer is 0.4×(n2+4n)/(2n+3) mass % or less where n is the number of layers of graphene forming the carbon nanotube.