NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, METHOD FOR MANUFACTURING THE SAME, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY

NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, METHOD FOR MANUFACTURING THE SAME, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY

PROBLEM TO BE SOLVED: To provide a negative electrode material for a lithium ion secondary battery realizing a lithium ion secondary battery having excellent cycle characteristics and a high level of safety, and inhibited from expanding with charges.SOLUTION: The negative electrode material for a li...

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Bibliographische Detailangaben
Hauptverfasser: KOZU MASAYUKI, XING XIANJIANG, SHIMAZAKI TOSHIKATSU
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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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a negative electrode material for a lithium ion secondary battery realizing a lithium ion secondary battery having excellent cycle characteristics and a high level of safety, and inhibited from expanding with charges.SOLUTION: The negative electrode material for a lithium ion secondary battery contains composite particles made by compositing the surfaces of first particles composed of graphite having circularity of 0.60 to 1.00 with second particles containing silicon using a carbonaceous material.