BATTERY AND BATTERY MANUFACTURING METHOD

A battery includes a unit cell including an electrode current collector, a first layer, a second layer, a third layer, and a counter electrode current collector. The first layer includes an electrode active material layer and a first insulating layer having an electronic insulation property. The second layer includes a solid electrolyte layer. The third layer includes a counter electrode active material layer. A first region not covered with the first layer is provided at an end portion of the main surface of the electrode current collector in the first direction. A second region not covered with the second layer in a plan view is provided at the end portion of the first layer in the first direction. A third region not covered with the third layer in the plan view is provided at an end portion of the second layer in the first direction.