Lithium-ion polymer batteries are getting popular in both renewable energy systems and electric vehicles thanks to their high power and energy density. Therefore, accurate battery models are vital in design and simulation of hybrid/electric vehicle propulsion systems. In this work a novel equivalent circuit-mathematical battery model whose parameters were extracted from experimental data is proposed. The simulation results were compared with actual results obtained from a series of experiments carried out using an automotive-grade 11 Ah Kokam SLBP lithium-ion polymer battery. The model exhibits consistent behaviour.

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