A method for manufacturing a microbattery (100; 200; 300; 400; 500), comprising the steps: - forming a layered structure with a first metal layer for forming a first current collector, with a second metal layer for forming a second current collector and with an insulator layer which is arranged between the first metal layer and the second metal layer, so that the insulator layer electrically insulates the first metal layer from the second metal layer; - regionally structuring the second metal layer and the insulator layer, for exposing at least a first electrode contact region (2c, 2d) of the first metal layer on an upper side of the first metal layer which faces the insulator layer; - forming a first electrode (12c, 12d), in a manner such that the first electrode (12c, 12d) electrically contacts the first metal layer in the exposed, first electrode contact region (2c, 2d), and that the first electrode (12c, 12d) engages through the insulator layer and the second metal layer and projects beyond an upper side of the second metal layer which is away from the insulator layer; - forming a separator structure (9c, 9d; 10c, 10d; 19c, 19d) in a manner such that the separator structure (9c, 9d; 10c, 10d; 19c, 19d) encloses or enwalls the first electrode (12c, 12d) and extends from the upper side of the first metal layer at least up to the upper side of the second metal layer, so that the separator structure (9c, 9d; 10c, 10d; 19c, 19d) insulates the first electrode (12c, 12d) from the second metal layer; - forming at least one second electrode (13e, 13f, 13g) on the second metal layer, so that the second electrode (13e, 13f, 13g) electrically contacts the second metal layer; - forming an ion conductor (14; 22a; 22b; 22c) in a manner such that the ion conductor (14; 22a; 22b; 22c) contacts the first electrode (12c, 12d) and the second electrode (13e, 13f, 13g), so that ions can travel via the ion conductor (14; 22a; 22b; 22c) from the first electrode (12c, 12d) to the second electrode (13e, 13f, 13g) or from the second electrode (13e, 13f, 13g) to the first electrode (12c, 12d). - forming a layered structure with a first metal layer for forming a first current collector, with a second metal layer for forming a second current collector and with an insulator layer which is arranged between the first metal layer and the second metal layer, so that the insulator layer electrically insulates the first metal layer from the second metal layer; - regionally structuring the second metal layer and the insulator layer, for exposing at least a first electrode contact region (2c, 2d) of the first metal layer on an upper side of the first metal layer which faces the insulator layer; - forming a first electrode (12c, 12d), in a manner such that the first electrode (12c, 12d) electrically contacts the first metal layer in the exposed, first electrode contact region (2c, 2d), and that the first electrode (12c, 12d) engages through the insulator layer and the second metal layer and projects beyond an upper side of the second metal layer which is away from the insulator layer; - forming a separator structure (9c, 9d; 10c, 10d; 19c, 19d) in a manner such that the separator structure (9c, 9d; 10c, 10d; 19c, 19d) encloses or enwalls the first electrode (12c, 12d) and extends from the upper side of the first metal layer at least up to the upper side of the second metal layer, so that the separator structure (9c, 9d; 10c, 10d; 19c, 19d) insulates the first electrode (12c, 12d) from the second metal layer; - forming at least one second electrode (13e, 13f, 13g) on the second metal layer, so that the second electrode (13e, 13f, 13g) electrically contacts the second metal layer; - forming an ion conductor (14; 22a; 22b; 22c) in a manner such that the ion conductor (14; 22a; 22b; 22c) contacts the first electrode (12c, 12d) and the second electrode (13e, 13f, 13g), so that ions can travel via the ion conductor (14; 22a; 22b; 22c) from the first electrode (12c, 12d) to the second electrode (13e, 13f, 13g) or from the second electrode (13e, 13f, 13g) to the first electrode (12c, 12d).