| abstract |
Provided is a carbon material excellent in rapid charge and discharge characteristics while suppressing excessive reactivity with an electrolyte solution. (i) a tap density ≥ 0.75g / ㎤, (ii) a Raman R value ≥ 0.23, a Raman spectrum 1358㎝ half width of D band appearing in the vicinity of -1 Δν D <45㎝ -1, also (iii) 4㎡ / g ≤ BET specific surface area (SA) ≤ 11 m 2 / g carbon material for lithium ion secondary batteries. |