Clad material for lead and welding method for clad material for lead

摘要

A lead cladding material capable of suppressing foreign matters from remaining on the surface is obtained. The lead clad material (1) is a lead clad material welded to the terminals (21, 22) of the battery (2), and is a first Ni layer disposed on the side welded to the battery terminals. (11), a second Ni layer (12) disposed on the side opposite to the side to be welded, and an Fe layer (10) disposed so as to be sandwiched between the first Ni layer and the second Ni layer, The thickness of the first Ni layer is not less than 2.1% and not more than 8.2% of the thickness of the clad material composed of the first Ni layer, the second Ni layer, and the Fe layer.