| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide the manufacturing method of a negative electrode material of a lithium ion battery easy to practice, having high cladding effect, low irreversible capacity, and stable circulation performance. <P>SOLUTION: The manufacturing method of the negative electrode material of the lithium ion battery is that (1) artificial graphite, a cladding material, and a solvent are mixed, the solvent is removed by evacuation, and the artificial graphite is clad with raw material of the cladding material. (2) Thermal polymerization reaction is applied to the clad artificial graphite to form a fine capsule-like cladding layer on the surface of the artificial graphite. (3) By carbonizing or graphitizing the product obtained by (2), carbon negative electrode material whose surface is covered with a carbonized layer or the artificial graphite layer, or the negative electrode material of the lithium ion battery can be obtained. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
