| 摘要 |
<p>The problem addressed by the present invention is to obtain a rectangular secondary cell (1) in which an electrolyte is easily injected into a cell case (2) and in which a readily sealed structure is provided. The present invention is a rectangular secondary cell (1) in which an electrode group (4) is accommodated in a cell case (2), an opening (2a) of the cell case (2) is sealed by a cell lid (3), wherein the cell has a fluid-injection part (7) having a plurality of mutually adjacent through holes (21, 22) passing through the cell lid (3), and a sealing part (8) for integrally sealing the plurality of through holes (21, 22), the sealing part (8) being attached to the fluid-injection part (7).</p> |
