Estimation of electric vehicle battery capacity requirements based on synthetic cycles

The adoption of the Electric Vehicle requires a switch towards a circular system to reduce their environmental impact. Under this framework, the correct sizing of the batteries and avoiding their underuse are key actions. Based on the analysis of real data, this work proposes a model to synthesize current profiles representative of trips containing urban and highway sections. The model is used to generate cycles for common daily driving distances. Different sized batteries are analysed at their beginning and end of life to evaluate their ability to provide the required range. Based on the results, it is suggested that the ongoing trend of battery capacity increase is not justified. The commonly assumed threshold of 70–80% State of Health has proved to be too conservative in most cases, allowing for an extension of the first life that should be individually defined based on functional aspects.
Peer Reviewed
Objectius de Desenvolupament Sostenible::11 - Ciutats i Comunitats Sostenibles
Postprint (published version)