Disclosed is an electrode body for use in all-solid-state battery elements, which hardly causes a short-circuit. Specifically disclosed is an electrode body to be used in an all-solid-state battery element, which is characterized by having a bipolar electrode base structure which includes a collector, a positive electrode active material layer formed on one side of the collector, a negative electrode active material layer formed on a side of the collector at a position not overlapping the positive electrode active material layer when viewed in plan, and a collector exposing portion formed between the positive electrode active material layer and the negative electrode active material layer so that the both sides of the collector are exposed therefrom.