A new dynamic model is developed in this paper based on the generic MATLAB\nbattery model. The battery capacity is expressed as a function of the self-discharge\nrate, the discharge current, the cycling life and the temperature of the battery.\nThe dependence of the model parameters on cycle life and temperature are estimated\nfrom the first order approximation. The detailed procedures and formula\nto extract the model parameters are presented and the extraction relies\nonly on the discharge curves at two different discharge currents, at two different\nlife cycles, and at two different temperatures. These discharge curves are typically\nprovided in the battery manufacturer�s datasheet. The proposed model is\nverified for both nickel-metal hydride and lithium-ion batteries by comparing\nthe calculated discharge curves with the results from the generic MATLAB\nmodel. The model is further validated for the Sinopoly lithium-ion battery\n(SP-LFP1000AHA) by comparing the model results with the discharge curves\nfrom the manufacturer�s datasheet at different discharge currents, different cycling\nnumbers, and different temperatures. Simulation results show that the new\nmodel can correctly predict voltage separation beyond the nominal zone while\nmaintaining the same level of accuracy as the generic MATLAB model in the\nexponential and nominal zones.
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