| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a film-covered electrical device which fixes an electrical device element, protects an outer covering film not only from the electrical device element, but also from a tab, and improves the electrical insulating properties of the outer covering film.SOLUTION: A film-covered electrical device of the present invention includes: an electrical device element which includes a stacked region where a plurality of positive electrode plates and a plurality of negative electrode plates are stacked, and a collector portion extending from the stacked region and connected to each of the positive electrode plates and the negative electrode plates; an outer covering film having a thermally-fusible resin layer on a surface facing the electrical device element and sealing the electrical device element and an electrolyte; a tab connected to the collector portion and extending outward from the outer covering film; and an overlaying member provided between the electrical device element and the outer covering film and folded to two at a bent portion to sandwich the electrical device element. The overlaying member includes: a protective region covering corners of the electrical device element and the tab; and a communication portion through which the electrolyte can pass.</p> |
