| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an evaluation method of a lithium secondary battery in which evaluation of large electric current characteristic of the lithium secondary battery is possible simply and precisely in a short time, and provide the lithium secondary battery which is superior in large electric current characteristics especially in low temperature conditions and which is using the evaluation method of the lithium secondary battery. <P>SOLUTION: This is the evaluation method of the lithium secondary battery which has the inner electrode body comprised that the positive electrode plate formed by using the positive electrode active substance and the negative electrode plate formed by using the negative electrode active substance are wound or laminated via a separator, and which uses a nonaqueous electrolytic solution. The large electric current characteristic of the lithium secondary battery is evaluated by the electric current dependency of the voltage depression measured at a prescribed time after flowing an evaluating current. <P>COPYRIGHT: (C)2003,JPO |
