METHOD FOR WELDING THIN PLATES OF DIFFERENT METAL, JOINED BODY OF THIN PLATES OF DIFFERENT METAL, ELECTRIC DEVICE, AND ELECTRIC DEVICE ASSEMBLY

摘要

A bimetallic thin plate jointing element that is jointed, such that good electric characteristics are maintained, is provided. Thin plate jointing element (10) is formed by welding and jointing positive-electrode terminal (1) and negative-electrode terminal (2) having different melting points, and having flexibility. A plurality of spot-like welding areas (3) formed, for example, by laser welding are provided at overlaid portion (9) of positive-electrode terminal (1) and negative-electrode terminal (2). Welding areas (3) are formed by irradiating laser beams from the side of positive-electrode terminal (1) having a relatively low melting point, and have a cross-sectional shape that is tapered from the side of positive-electrode terminal (1) side toward negative-electrode terminal (2).