| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a collector for a nonaqueous electrolyte secondary battery capable of restraining generation of troubles in an electrode such as waviness, wrinkles, and warping or the like as well as falling-off of an active material layer. <P>SOLUTION: The collector 10 is provided with projections 12 arranged in a predetermined order on one side or both sides of a metal foil 11. The projections are nearly diamond-shaped and arranged in a zigzagging alignment. Moreover, both of end parts in direction of two axes crossing each other are protruded outside, while the intermediated parts of each end parts retreat inside. With this, a cylindrical body of an active material is formed on the projection, and for composing an active material layer, an air gap between the projections can be made large at a position where an interval of the projections becomes smallest. <P>COPYRIGHT: (C)2010,JPO&INPIT |
