| 摘要 |
<p>The purpose of the present invention is to obtain a secondary battery, which does not have increased connection resistance, contrary to the cases where brazing filler materials or swaging is used, at the time of connecting a plurality of the secondary batteries in series using a bus bar, and which has a terminal structure having high rigidity. In a secondary battery (D1) of the present invention, a positive electrode connecting terminal connected to the positive electrode of an electrical storage element, and a negative electrode connecting terminal connected to the negative electrode of the electrical storage element are respectively configured of different kinds of metals. The secondary battery has: an intermediate member (1) connected by welding to the negative electrode connecting terminal (3); and an external terminal (2), which is configured of the same kind of metal the positive connecting terminal (20) is configured of, and is diffusion-bonded to the intermediate member (1).</p> |
