Predicting battery's capacity degradation using grey model

Failure in battery could lead in loss of operation, decreased capability, operational impairment and downtime. If capacity degradation in battery can be predicted, terrible failure can be avoided. This paper presents developed grey prediction algorithm for predicting battery's capacity degradation. Basic grey model have employed to forecast degradation of battery's capacity, but the result was unsatisfactory. In order to improve the accuracy of prediction, the basic grey model has been modified. The proposed method is validated by predicting capacity degradation of a tested battery. This work also achieved that grey model is a promising predictor for battery prognostics system.