Electric storage element

The invention provides an electric storage element and a method for manufacturing an electric storage element. The electric storage element can reduce the misalignment of the gasket within the container while smoothly inserting the gasket into the container. The electric storage element (10) includes: an electrode body (120) having a positive electrode and a negative electrode; a case (100) for housing the electrode body (120); an insulating member (180) arranged in the case (100) to insulate the electrode body (120) from the case (100); and a spacer (170) arranged in the case (100). The spacer (170) is arranged between the insulating member (180) and the electrode body (120).