ELECTROCHEMICAL ENERGY STORAGE CELL AND ELECTROCHEMICAL ENERGY STORAGE DEVICE COMPRISING AT LEAST ONE ELECTROCHEMICAL ENERGY STORAGE CELL OF SAID TYPE

摘要

The invention relates to an electrochemical storage cell (10) containing an electrode subassembly (12) which has at least one first electrode (14) of a first polarity and at least one second electrode (16) of a second polarity, also comprising a film-like covering (24) which at least partially encloses the electrode subassembly (12); and at least one first current conducting device (20) which is connected in an electrically conductive manner to at least one first electrode (14) of the electrode subassembly (12) and at least partially protruding out from the covering (24), and at least one second current conducting device (22) which is connected in an electrically conductive manner to at least one second electrode (14) of the electrode subassembly (12) and protrudes at least partially from the covering (24). In order to increase the security, the covering (24) comprises at least one first functional layer (243) which is at least partially electrically conductive and is connected in an electrical conductive (21) manner to the at least one first electrode (14) of the electrode subassembly (12), and at least one electric insulating layer (245) which separates the first functional layer (243) of the covering (24), in the normal operating state of the energy storage cell (10), in a layer direction (25) of the covering, from the electrode subassembly (12). Also, the at least one first functional layer (243) of the covering (24) is connected to a measuring device (26) which is designed to detect an electric operational parameter and/or an electric operating parameter modification of the at least one first functional layer (243).