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1. (WO2018099727) METHOD AND CIRCUIT ARRANGEMENT FOR PRE-INDICATION OF DENDRITE FORMATION IN AN ELECTRODE ASSEMBLY OF A BATTERY CELL AND BATTERY CELL

Pub. No.:    WO/2018/099727    International Application No.:    PCT/EP2017/079442
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Fri Nov 17 00:59:59 CET 2017
IPC: H01M 10/48
H01M 6/50
Applicants: ROBERT BOSCH GMBH
LITHIUM ENERGY AND POWER GMBH & CO. KG
Inventors: MINGIRULLI, Nicola
HILLER, Martin Manuel
FUCHS, Franz
Title: METHOD AND CIRCUIT ARRANGEMENT FOR PRE-INDICATION OF DENDRITE FORMATION IN AN ELECTRODE ASSEMBLY OF A BATTERY CELL AND BATTERY CELL
Abstract:
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).