Batteries, Vol. 7, Pages 2: Incremental Capacity Analysis as a Condition of Health Estimation Method regarding Lithium-Ion Battery Modules with Series-Connected Cells

Batteries, Vol. 7, Pages 2: Incremental Capacity Analysis as a State of Health Estimation Technique for Lithium-Ion Battery Modules with Series-Connected Cells

Batteries doi: 10. 3390/batteries7010002

Authors: Amelie Krupp Ernst Ferg Frank Schuldt Karen Derendorf Carsten Agert

Incremental capacity analysis (ICA) has proven to be an effective device for determining the state of health (SOH) of Li-ion tissues under laboratory conditions. This document deals with an outstanding problem of applying ICA in exercise: the evaluation of battery collection connections. The study uses fresh aging and characterization data of lithium iron phosphate (LFP) cellular material down to 53% SOH. The evaluability of battery series connections using ICA is confirmed by analytical and experimental considerations just for cells of the same SOH. For cells of different SOH, a method for identifying non-uniform aging states on the modules& amp; rsquo; IC curve is certainly presented. The findings enable the classification of battery modules with series and parallel connections based on partial terminal data.

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