| 摘要 |
PROBLEM TO BE SOLVED: To provide a tab lead material for a film exterior package battery which is excellent in adhesion to a film exterior package body, anticorrosion, weldability and bendability, and also excellent in productivity, and a manufacturing method for the same.SOLUTION: In a tab lead material for a film exterior package battery which is connected to an electrode in a film exterior package battery 100 and taken out to the outside of the film exterior package battery, a first Ni-plated layer 1b is formed on the surface of a base material 1a made of Cu or Cu alloy, and a second Ni-plated layer 1c is formed on the first Ni-plated layer 1b. The first Ni-plated layer contains S of 800 mass ppm or less, and the second Ni-plated layer contains S of 1,000 to 25,000 mass ppm.SELECTED DRAWING: Figure 2 |
