CARBON MATERIAL FOR SECONDARY BATTERY NEGATIVE ELECTRODE, ACTIVE MATERIAL FOR SECONDARY BATTERY NEGATIVE ELECTRODE, SECONDARY BATTERY NEGATIVE ELECTRODE, AND SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a carbon material for a secondary battery negative electrode whose storage amounts and emission amounts of chemical species such as a lithium ion are all improved.SOLUTION: A carbon material for a secondary battery negative electrode contains carbon as a main component, contains phosphor in a range of greater than or equal to 0.3 mass% and less than or equal to 1.5 mass%. An adsorption amount of a carbon dioxide gas is less than 10 ml/g per unit weight.SELECTED DRAWING: Figure 1