SYSTEMS AND METHODS FOR BATTERY PERFORMANCE MONITORING

Battery testing and monitoring by determining battery characteristics such as an increase thickness of the battery SEI layer, extent of lithium-ion plating, loss of cyclable lithium, dendrite growth (and extent), and/or other characteristics that may impact the performance and/or safety of a lithium-ion battery. The battery characteristics may be determined at perioding intervals using test data that includes voltage and current at various charging levels and state of charge, thus providing impedance profiles that can be compared to modelled and/or known thresholds of battery conditions.