Battery cell comprising a housing having tubular projections

It is a battery cell (10), in particular a lithium-ion battery cell described comprising an electrode ensemble (5) having an anode with at least one contact lug (9a) and a cathode having at least one contact lug (9b), and a housing (1) comprising a bottom surface (12), at least 4 lateral faces (14) and a cover surface (13), characterized in that the housing (1) comprises tubular projections (3), in particular with an opening (7).