| 摘要 |
PROBLEM TO BE SOLVED: To provide a lithium secondary battery equipped with an improved cyclic characteristic and establish a fabricating method for electrode plate used in such secondary battery by reducing the internal resistance through reduction of dispersion in the thickness and density of an electrode active material layer in a positive electrode plate and negative electrode plate constituting an inner electrode body. SOLUTION: An inner electrode body 1 is formed by winding round a positive electrode plate 2 and negative electrode plate 3 with a separator 4 interposed, and an intended lithium secondary battery is formed from this inner electrode body 1 and an organic electrolytic solution. The thickness relative standard deviation of the active material of the positive electrode plate 2 is <=5% and/or the density relative standard deviation is <=5%, and/or the thickness relative standard deviation of the active material of the negative electrode plate 3 is <=3% and/or the density relative standard deviation is <=3%. |
