Electrochemical single cell

Abstract

The invention relates to an electrochemical single cell (100) comprising an electrode arrangement (110) with two electrodes (111) and a separator (113) arranged between the electrodes (111, 112), wherein the electrodes (111, 112) and the separator (113) are wound around a winding axis (Z) forming a cavity (114) coaxially surrounding the winding axis (Z) and extending over the entire length of the electrode arrangement (110), and a cell housing (120) in which the electrode arrangement (110) is arranged.According to the invention, the first electrode (111) is electrically connected to a disc-shaped first current collector (131) at a first end face (115) of the electrode arrangement (110), the second electrode (112) is electrically connected to a disc-shaped second current collector (140) at a second end face (116) of the electrode arrangement (110), the second current collector (140) having an opening (141), the second current collector (140) forming a housing cover (121) of the cell housing (120) and being connected to a housing lower part (122), an electrically conductive connecting element (132) is electrically connected to the first current collector (131), and the connecting element (132) electrically connected to the first current collector (131) is electrically insulated from the first current collector (131) by the cavity (114) and the opening (141) of the second current collector (140). the cell casing (120).

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