| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery reducing an obstacle of an adhesive of an insulating tape for preventing an internal short circuit to the manufacturing equipment of a spiral electrode body and to assembly work, and eliminating a bad influence on battery specifications. <P>SOLUTION: The nonaqueous electrolyte secondary battery has the spiral electrode body 10A formed by spirally winding a positive electrode 15 having a positive electrode mix coated part 15a and a positive electrode mix uncoated exposed part 15b on metal core foil and a negative electrode 12 having a negative electrode mix coated part 12a and a negative electrode mix uncoated exposed part 12b by a separator, and a first insulating tape 16 is stuck in a position on the back side of an electrode on the outermost circumferential side of the spiral electrode body 10A, in a boundary between the mix coated part and the exposed part of the electrode, and corresponding to the final end of the mix coated part of the counter electrode, and a second insulating tape (not shown in Fig.) is stuck so as to cover a part where an adhesive surface 16b of the first insulating tape 16 is exposed from the core foil 16. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
