NEGATIVE ELECTRODE MATERIAL FOR NON-AQUEOUS SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF, NEGATIVE ELECTRODE FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY

To provide a negative electrode material for a non-aqueous secondary battery that has an improved low temperature input/output characteristic while maintaining a high temperature storage characteristic and its manufacturing method, and also provide a negative electrode for a non-aqueous secondary ba...

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Hauptverfasser: ISHIWATARI NOBUYUKI, YAMADA SHUNSUKE, SATO TOMOHIRO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a negative electrode material for a non-aqueous secondary battery that has an improved low temperature input/output characteristic while maintaining a high temperature storage characteristic and its manufacturing method, and also provide a negative electrode for a non-aqueous secondary battery and a non-aqueous secondary battery using the negative electrode material for the non-aqueous secondary battery.SOLUTION: A negative electrode material for a non-aqueous secondary battery in which graphite and conductive carbonaceous fine particles are compounded via amorphous carbon. When it is assumed that X denotes a conductive carbonaceous fine particle amount relative to a specific surface area of graphite particles, Y denotes the conductive carbonaceous fine particle amount relative to an amorphous carbon amount, and Z denotes a ratio of a BET specific surface area before an ultrasonic wave is applied relative to a BET specific surface area after the ultrasonic wave is applied, the negative electrode material for the non-aqueous secondary battery satisfies the following conditions (1)-(3). Condition (1): 0