Supercapacitor cell and supercapacitor module including a plurality of these cells

The cell (1) has a set of cell units (10) arranged side by side in series and encapsulated in a flexible and leak-tight packaging (20), where each unit comprises two upper and lower electrodes (11, 12) and an ionic electrolyte. Two upper and lower collector parts (31, 32) of current collectors (33-36) cover upper and lower electrodes. The upper and/or lower collectors are formed at two ends of the cell, where adjacent collectors are terminated by facing edge sections (37) that are electrically insulated from one another by insulating adhesive material. An independent claim is also included for a supercapacitive module.