| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a coating composition for an active material layer, which can solve problems in which surface quality after coating and drying becomes different on the basis of selection of carboxymethylcellulose and there exist such as dropping-out of a coating mixing agent section from a defect section, a battery performance malfunction caused by an exposure of a collector, and generation of heating when the surface quality is very bad, which can prevent the occurrence of defects in an electrode plate manufacturing process, and which can stably manufacture an electrode plate for a nonaqueous electrolyte secondary battery which is high capacity and is excellent on battery performance. <P>SOLUTION: The used carboxymethylcellulose sodium salt is characterized in that the degree of etherealization is 1.15 to 1.45. <P>COPYRIGHT: (C)2009,JPO&INPIT |
