Metal/air cell in button cell form having the following features a. it comprises a housing having an interior , and b. in the interior , it comprises a metal-containing anode , an air cathode , and a separator arranged between the anode and the air cathode , wherein c. the housing comprises a cell cup and a cell top as well as a seal , d. the cell cup has a base region , an annular shell region and a circumferential edge that separates the base region and the shell region , e. the cell cup has at least one inlet opening in the base region via which atmospheric oxygen can enter the interior , and f. the cell cup and each of its regions has an inner side facing the interior and an oppositely directed outer side , wherein g. the air cathode is designed as a cathode disc having a circumferential cathode disc periphery , h. the air cathode comprises a metal collector structure , which emerges from the cathode disc at the cathode disc periphery , and i. the cathode disc is arranged in the housing in such a way that the cathode disc periphery bears along a circumferential contact zone against the inner side of the shell region of the cell cup , wherein j. the outer side of the cell cup has at least one depression introduced by way of impression, said depression becoming visible as an elevation on the inner side of the cell cup , and k. the at least one depression is introduced into the outer side of the shell region in such a way that the elevation exerts a pressure against the cathode disc periphery in the region of the contact zone , and characterized by the following additional features l. the at least one depression is of elongate form, and extends in the axial direction on the outer side of the shell region of the cell cup . a. it comprises a housing having an interior , and b. in the interior , it comprises a metal-containing anode , an air cathode , and a separator arranged between the anode and the air cathode , c. the housing comprises a cell cup and a cell top as well as a seal , d. the cell cup has a base region , an annular shell region and a circumferential edge that separates the base region and the shell region , e. the cell cup has at least one inlet opening in the base region via which atmospheric oxygen can enter the interior , and f. the cell cup and each of its regions has an inner side facing the interior and an oppositely directed outer side , g. the air cathode is designed as a cathode disc having a circumferential cathode disc periphery , h. the air cathode comprises a metal collector structure , which emerges from the cathode disc at the cathode disc periphery , and i. the cathode disc is arranged in the housing in such a way that the cathode disc periphery bears along a circumferential contact zone against the inner side of the shell region of the cell cup , j. the outer side of the cell cup has at least one depression introduced by way of impression, said depression becoming visible as an elevation on the inner side of the cell cup , and k. the at least one depression is introduced into the outer side of the shell region in such a way that the elevation exerts a pressure against the cathode disc periphery in the region of the contact zone , <EOS>