| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a winding type battery capable of raising safety by effectively restraining internal short circuit. <P>SOLUTION: In the battery having a winding body wherein a positive electrode 11, a negative electrode 12 and a separator 13 are integrated, resin films 11x, 12x wherein conductive layers 11y, 12y are respectively formed on both sides of the resin films are respectively set up to be current collectors of the positive electrode 11 and the negative electrode 12. Furthermore, the resin film 11x has an exposed range where the conductive layer 11y is entirely not formed on outer periphery sections b and c of the winding body. <P>COPYRIGHT: (C)2010,JPO&INPIT |
