COVER FOR AN ELECTROCHEMICAL CELL

A cover for an electrochemical cell, a method for producing it and a cell comprising the cover are provided. The cover includes a ring with an outer circumference and an inner circumference, a crown-shaped boss located between the inner circumference and the outer circumference, two or more circular arc-shaped planar areas located between the crown-shaped boss and the outer circumference of the ring, and a number of projections extending from the crown-shaped boss toward the outer circumference along a non-radial axis, with a thinned region being present on at least one of the projections and/or on the crown-shaped boss and/or on at least one of the planar areas. The cover makes it possible to increase the useful volume inside the cell.