METHOD AND CIRCUIT ARRANGEMENT FOR PRE-INDICATION OF DENDRITE FORMATION IN AN ELECTRODE ASSEMBLY OF A BATTERY CELL AND BATTERY CELL

摘要

The invention concerns a method for pre-indication of dendrite formation in an electrode assembly (10) of a battery cell, the electrode assembly (10) containing an anode (11) and a cathode (12) that are separated from one another by means of a separator (18). Thereat, a concentration change of metal ions from a potential metal contamination in the battery cell is detected. The invention also concerns a circuit arrangement (45) for pre-indication of dendrite formation in an electrode assembly (10) of a battery cell, the electrode assembly (10) containing an anode (11) and a cathode (12) that are separated from one another by means of a separator (18), the separator (18) containing an electrically conductive additional layer (32). Thereat, a measuring instrument (40) for determining an electrode potential of the additional layer (32) is provided. The invention further concerns a battery cell comprising such a circuit arrangement (45).