Evaluation on performance of lithium-ion batteries based on internal physical and chemical parameters

In this work, a new method for evaluating performance of Lithium-ion batteries by finding the association between internal physical/chemical parameters and batteries' degradation is developed. The research is divided into three stages: preparation, off-line analysis and online application. Achievements have been made on simulation model computation and simplification, parameter identification and parameter sensitivity analysis. This paper addresses the achievements and ongoing works involved in the three stages in brief.