PITCH-BASED ULTRAFINE CARBON FIBERS, METHOD FOR PRODUCING SAME, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY NEGATIVE ELECTRODE USING SAID PITCH-BASED ULTRAFINE CARBON FIBERS, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY HAVING SAID NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY NEGATIVE ELECTRODE

The present invention provides pitch-based ultrafine carbon fibers that have an average fiber diameter of at least 100 nm and less than 700 nm, and an average fiber length of 10 µm or more, wherein C-O bonds > C=O bonds in terms of the abundance ratio (molar ratio) of C-O bonds and C=O bonds deri...

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Bibliographische Detailangaben
Hauptverfasser: HIRAKAWA, Ryota, KANEMATSU, Asami, YACHI, Kazuki
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:The present invention provides pitch-based ultrafine carbon fibers that have an average fiber diameter of at least 100 nm and less than 700 nm, and an average fiber length of 10 µm or more, wherein C-O bonds > C=O bonds in terms of the abundance ratio (molar ratio) of C-O bonds and C=O bonds derived from the O1s orbital as measured by X-ray photoelectron spectroscopy.