| 摘要 |
Disclosed are a negative electrode active material for a lithium secondary battery, a method for preparing the same, and a lithium secondary battery comprising the same. According to an embodiment of the present invention, the negative electrode active material for a lithium secondary battery comprises: a graphite negative electrode material obtained by combining spherical graphite with a low crystalline carbon material; and high crystalline graphite having a Raman R value of 0.03 to 0.15. The Raman R value represents R (R=Id/Ig), an intensity ratio obtained by measuring lg, which is an intensity of peak Pg near 1580 cm^(-1), and Id, which is an intensity of peak Pd near 1360 cm^(-1), in a Raman spectrum analysis. |
