| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a negative electrode for a nonaqueous secondary battery which is excellent on firm adhesion, flexibility, and peeling-out characteristics at the time of press of a negative electrode mixture layer. <P>SOLUTION: In the negative electrode for a nonaqueous secondary battery wherein a negative electrode plate for a nonaqueous secondary battery forms a negative electrode mixture including negative electrode active material particles and a binding material on a surface of a negative electrode core, the binding material is made from two kinds of mixtures of a large-particle binding material wherein an average particle diameter is at a range of 160-200 nm and glass transition temperature Tg is -5°C or less, and a small-particle binding material wherein an average particle diameter is 80 to 100 nm and glass transition temperature Tg is 20°C or more. A ratio of the average particle diameters between the large-particle binding material and the small-particle binding material is 1.85-2.30 in the binding material. Furthermore, a mixed ratio of the large-particle binding material and the small-particle binding material is 75/25 to 25/75 in the binding material. <P>COPYRIGHT: (C)2010,JPO&INPIT |
