Battery Aging Models Based on High-Current Incremental Capacity in Fast Charging

This paper presents battery aging models based on high-current incremental capacity features in the presence of cycling profiles characterized by fast charging conditions. In particular, main peak area under graph is proposed as a indicator. A dataset from Toyota Research Institute analyzed. Batteries’ data are various single- or double-step charges constant current to reach 80% state charge; remaining charge process performed 1C charge. Depending battery, linear logarithmic model was identified best suitable for representing capacity–peak relationship. The generalization capabilities evaluated performing an inference analysis fitting results over groups batteries. Finally, we prediction performance adopting cross-validation approach.