Energy storage cell and method of manufacturing such an energy storage cell

:

• An energy storage cell, comprising:
• an electrode-separator assembly comprising a ribbon-shaped anode, a ribbon-shaped cathode, and a separator with the sequence anode/separator/cathode, the anode comprising a ribbon-shaped anode current collector with a first longitudinal edge and a second longitudinal edge parallel thereto, the ribbon-shaped anode current collector comprising a main region loaded with a layer of a negative electrode material and a free edge strip extending along the first longitudinal edge and being not loaded with the negative electrode material, the cathode comprising a ribbon-shaped cathode current collector with a first longitudinal edge and a second longitudinal edge parallel thereto, the ribbon-shaped cathode current collector comprising a main region loaded with a layer of a positive electrode material and a free edge strip extending along the first longitudinal edge and being not loaded with the positive electrode material, the anode and the cathode being formed and/or arranged within the electrode-separator assembly, which is formed as a cylindrical winding with a first terminal end face, a second terminal end face, and a winding shell between the first and second terminal end faces, such that the free edge strip of the cathode current collector or the free edge strip of the anode current collector protrudes from the first terminal end face;
• and
• a housing closed in an airtight and liquid-tight manner and enclosing an interior space in which the electrode-separator assembly is arranged, the housing comprising a metallic housing cup with a terminal circular opening and a lid assembly with a circular edge that closes the circular opening,
• wherein the lid assembly comprises an annular seal of an electrically insulating material surrounding its circular edge, a metallic contact element, a metallic membrane electrically coupled to the contact element and which is configured to bulge or burst outwards from a defined excess pressure inside the housing, and a metallic pole cap electrically coupled to the metallic membrane,
• wherein the housing cup comprises, in axial sequence, a bottom, a central section and a closure section, wherein the central section is formed as a cylinder and in the central section the winding shell of the electrode-separator assembly formed as a winding is in contact with the inside of the housing cup, and wherein, in the closure section, the annular seal is in press contact with the lid assembly and the inside of the housing cup, and
• wherein the free edge strip protruding from the first terminal end face is welded to the contact element of the lid assembly.