Secondary battery

摘要

According to one embodiment, there is provided a secondary battery. This secondary battery includes an electrode and an organic-fiber layer. The electrode includes a current collector including an edge part, an active material-containing layer including an end part supported on the edge part, and a current-collecting tab including a surface a part of which is adjacent to the edge part. The organic-fiber layer is bonded with the end part of the active material-containing layer with maximum thickness and with the part of the surface of the current-collecting tab.

主权项

1. A secondary battery comprising:
an electrode pair comprising a first electrode and a second electrode, at least one of which comprising:
a current collector comprising an edge part,an active material-containing layer supported on at least one surface of the current collector, an end part of the active material-containing layer being supported on the edge part of the current collector, the end part of the active material-containing layer comprising a protrusion protruding away from the current collector, anda current-collecting tab extended from the edge part of the current collector and comprising a first surface and a second surface, the first surface comprising a part adjacent to the edge part of the current collector; and an organic-fiber layer comprising organic fibers and directly formed on a surface of the protrusion of the end part of the active material-containing layer, on an end surface of the end part of the active material-containing layer, and on the part adjacent to the edge part of the current collector, the organic-fiber layer being directly formed by ejecting a raw material solution to the surface of the protrusion of the end part of the active material-containing layer, to the end surface of the end part of the active material-containing layer, and to the part adjacent to the edge part of the current collector, and the organic fibers are continuously spread in a longitudinal direction of the at least one electrode.