Electrode sheet for lithium ion secondary battery

According to the present invention, provided is an electrode sheet for a lithium ion secondary battery, which comprises at least an active material for a lithium ion battery, fibrous carbon and a fluorine-based polymer, and which is characterized in that the electrode sheet for a lithium ion seconda...

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Bibliographische Detailangaben
Hauptverfasser: YACHI KAZUKI, DAIDO TAKAHIRO
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:According to the present invention, provided is an electrode sheet for a lithium ion secondary battery, which comprises at least an active material for a lithium ion battery, fibrous carbon and a fluorine-based polymer, and which is characterized in that the electrode sheet for a lithium ion secondary battery has a film thickness of 50-2000 [mu] m and a tensile breaking strength of 0.2 N/mm2 or more, the fibrous carbon has an average fiber diameter of 100-900 nm, and the fluorine-based polymer has an average fiber diameter of 100-900 nm. The content of the fibrous carbon in the electrode sheet is 0.1 to 10 mass%. 根据本发明,提供一种锂离子二次电池用电极片,其至少包含锂离子电池用活性物质、纤维状碳和氟系聚合物,其特征在于:所述锂离子二次电池用电极片的膜厚为50至2000μm,拉伸断裂强度为0.2N/mm2以上,所述纤维状碳的平均纤维直径为100至900nm,所述纤维状碳在电极片中的含量为0.1至10质量%。