| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing a carbon material capable of producing a negative electrode material for a nonaqueous electrolyte secondary battery excellent in charge/discharge characteristics, a negative electrode material for a secondary battery and a nonaqueous electrolyte secondary battery using the carbon material obtained by the method. <P>SOLUTION: This method for producing a carbon material by carbonizing treatment of a resin composition comprises the steps of (a) preparing a phosphorus-containing carbon material precursor by mixing a resin composition with a phosphorus-containing compound, (b) carbonizing the phosphorus-containing carbon material precursor and (c) washing the carbonized product with water to substantially remove phosphorus component existing at least in the surface site. Further, the negative electrode material for the secondary battery containing the carbon material, and the nonaqueous electrolyte secondary battery using the negative electrode material for a secondary battery are disclosed. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
