| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve charge and discharge cycle characteristics of a nonaqueous electrolyte secondary battery containing Si based negative electrode active materials. <P>SOLUTION: The nonaqueous electrolyte secondary battery uses: a negative electrode active material; a silane coupling agent as a coupling agent; and a granulated body as a binding agent which contains a carbon material and at least one kind of material chosen from the following materials: styrene-butadiene copolymer, styrene-ethylene-butylene-styrene copolymer, styrene-butadiene rubber, methyl methacrylate-butadiene rubber, acrylonitrile-butadiene rubber, butadiene rubber and polyacrylic acid, polymaleic acid, and polyacrylic acid-polymaleic acid copolymer. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
