Electrode, Battery, and Manufacturing Method for Electrode

An electrode (positive electrode ()) includes a current collector layer (positive electrode current collector layer ()), an active material layer (positive electrode active material layer ()) that is stacked on and joined to the current collector layer and contains an active material (positive electrode active material ()), and an end portion insulating layer () that extends from the side of an end portion () of the current collector layer to a side portion () of the active material layer (positive electrode active material layer ()) and is stacked on the current collector layer to be joined to the current collector layer and the active material layer, the end portion insulating layer () containing particles () and a binder (). The occupancy percentage of the particles () in the end portion insulating layer () is at least 55% and at most 99.5%. The occupancy percentage of the particles () and the binder () in the end portion insulating layer () is at least 55.5% and at most 99%. The thickness of the end portion insulating layer () along a stacking direction Z is at least 1/20 and at most ½ of the thickness of the active material layer (positive electrode active material layer ()) along the stacking direction Z.