FOLDABLE CURRENT COLLECTOR, BATTERY CELL SUBASSEMBLY AND METHOD OF ASSEMBLY

A current collector (12) for connecting two components (14, 16) of a battery cell, namely a set of electrode tabs (14) and a terminal foot (16), comprises a sheet metal piece having a first wing (20), a second wing (22) and at least one fold portion (24) linking the first wing (20) to the second wing (22). The first wing (20) has a first flat face (30) located in a first plane (200), the second wing (22) has a second flat face (36) located in a second plane (300), the fold portion (24) defines a fold axis (100) which is parallel to the first flat face (30) and to the second flat face (36), the first flat face (30) is oriented in a first rotation direction (110) about the fold axis (100) and the second flat face (36) is oriented in a second rotation direction (120) about the fold axis, opposed to the first rotation direction (110). The fold portion (24) is entirely located on one side of the first plane (200) oriented in the second rotation direction (120) and crosses the second plane twice (300).