| 摘要 |
PURPOSE:To obtain a composite material for a plate and terminal material for a lead storage battery and to provide the lead storage battery having a lighter weight and higher performance by integrating an Al core material and a lead coating material into one body via a metal having good wettability with both materials. CONSTITUTION:A metalic coating layer 2 consisting of a specific metal is formed by, for example, a plating treatment, on the surface of an Al (alloy) core material 1. The outside of the material 1 formed thereon with the layer 2 is covered by casting with lead (alloy) to form a lead (alloy) covering layer 3. The metal for the layer 2 is enumerated by a metal having good wettability with both of the material 1 and the layer 3, for example, tin, 80% tin-20% zinc, 50% tin-50% lead. The core material and the layer 3 are satisfactorily joined to one body according to the above-mentioned method. |
