BATTERY

A main object of the present disclosure is to provide a battery with excellent bonding of tabs and current collecting terminals. The present disclosure achieves the object by providing a battery including a plurality of a power generating element, wherein: the power generating element includes a first active material layer, a second active material layer, an electrolyte layer arranged between the first active material layer and the second active material layer, a first current collector that collects currents of the first active material layer, and a second current collector that collects currents of the second active material layer; the first current collector includes a first tab including at least a root part; a plurality of the first tab is arranged to overlap with each other in a thickness direction of the power generating element; the battery includes a first current collecting terminal electronically connected to the plurality of the first tab; and in the plurality of the power generating element, a resin layer that reinforces the root part is arranged between the first tab neighboring.