ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND REGHARGEABLE LITHIUM BATTERY

An electrode for a rechargeable lithium battery has a thin film deposited on a current collector. The thin film is composed of active material that expands and shrinks as it stores and releases lithium, e.g., a microcrystalline or amorphous silicon thin film. The thin film is divided into column por...

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Bibliographische Detailangaben
Hauptverfasser:	FUJIMOTO, MASAHISA, KUROKAWA, HIROSHI, TARUI, HISAKI, NAKAJIMA, HIROSHI, KUSUMOTO, YASUYUKI, FUJITANI, SHIN, DOMOTO, YOICHI, YAGI, HIROMASA, SHIMA, MASAKI, KATO, YOSHIO, IKEDA, HIROAKI, MATSUTA, SHIGEKI, OHSHITA, RYUJI, ASAOKA, KENJI
Format:	Patent
Sprache:	eng ; fre
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:	An electrode for a rechargeable lithium battery has a thin film deposited on a current collector. The thin film is composed of active material that expands and shrinks as it stores and releases lithium, e.g., a microcrystalline or amorphous silicon thin film. The thin film is divided into column portions by gaps formed therein in a manner to extend in a thickness direction of the film, and the columnar portions are, at their bottoms, adhered to the current collector. The current collector exhibits a tensile strength that is equal to or greater than 7.44 N/mm, the tensile strength being calculated as tensile strength (N/mm2) per sectional area of the current collector material x thickness (mm) of the current collector.