| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high capacity nonaqueous secondary battery having good cycle characteristic by using an anode which can maintain a conductive network structure and its anode even if it is accompanied by expansion/contraction by improving the dispersibility of fiber-like carbon by distributing the fiber-like carbon beforehand in a polymer in view of the point of a large problem in the cycle characteristic where the conductive network structure cannot be maintained since it is accompanied by a large expansion when an Li ion is occluded though an alloy material for the anode containing Si although a constitution element has a large theoretical capacity and capacity increasing is possible. <P>SOLUTION: An anode electrode plate is configured by wetting at least a conductive material with a polymer, kneading primarily it, then adding an active substance and a dispersion medium, and kneading it. It contains at least Si as the constitution element of the active material. The conductive material contains a fiber-like carbon of at least 10 or more to 10,000 or less in aspect ratio. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
