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h i g h l i g h t sMethodology for cycle ageing semi-empirical model dynamic validation. Ageing tests acceleration evaluation. Detailed analysis of the influence of DOD, C-rate and Ah-throughput on cell ageing. Keywords: Li-ion battery ageing LiFePO 4 (LFP)/graphite Cycle-life performance model Dynamic storage profiles Lithium inventory loss (LLI) Loss of active material (LAM) a b s t r a c tThe present investigation work compares cycling ageing behaviour upon constant operation conditions (static tests) with degradation under non-constant schemes (dynamic tests), through a novel methodology for ageing model dynamic validation. A LFP-based Li-ion cell performance loss is analysed using a DOD and C-rate stress factors Ah-throughput-domain characterisation method, and represented using a semi-empirical model. The proposed stepwise validation approach enables assessing the static ageing tests acceleration factor and systematically improving the ageing model. The result is a simple but comprehensive model. The predictions root-mean-square error, under dynamic cycling operation conditions, is just 1.75%.

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