| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the generation of short circuit between electrodes, and to optimize the quantity of the active material to be contained in a positive electrode and a negative electrode by coating both surface of a separator with the coating for electrode film, while providing a non-coated part, providing collectors thereon, and thereafter, cutting the separator at the non-coated part. SOLUTION: Both surfaces of a separator 1 having a binder is made to intrude which is compatible with the binder for electrode film are coated with the coating for electrode film with a mask, while providing a non-coated part. Electrodes 21, 22 having a positive electrode active material of the lithium compound and a negative electrode active material of the carbon material and collectors 31, 32 are printed on both the surfaces of the separator 1, so as to form the layered structure while providing a non-coated part. After drying it, the separator 1 is cut at the position of the non-coated part. Since the electrodes 21, 22 and the collectors 31, 32 are not cut directly, the generation of peeling of the electrode coating and sagging and burring of the collectors 31, 32 are prevented thus the insulating property of the separator 1 is secured. The separator 1 is preferably formed of a nonwoven fabric or an organic porous film having thickness at 20-200 μm. |
