NEGATIVE ELECTRODE CARBON MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME
DRIVE
July 25, 2012
To provide a negative electrode carbon material capable of suppressing capacity degradation which will occur due to repetition of a charge/discharge cycle, storage under a charged state, float charging, or the like. An artificial graphite for a negative electrode of a lithium secondary battery having a c-axis crystallite size L (112) of from 2.0 to 4.2 nm as calculated from a (112) diffraction line obtained by X-ray wide-angle diffractometry and having a half-value width Δνof from 15 to 19 cmfor a peak appearing in a wavelength region of from 1580 cm± 100 cmin the Raman spectroscopy using an argon ion laser light having a wavelength of 5145 angstrom.
Discussion in the ATmosphere