Quantitative Analysis of Lithium-Ion Battery Capacity Prediction via Adaptive Bathtub-Shaped Function

Energies

Yi Chen²  Qiang Miao¹  Bin Zheng³  Shaomin Wu⁴ 

[1] School of Mechatronics Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China; E-Mail:;School of Engineering and Built Environment, Glasgow Caledonian University, Glasgow G4 0BA, UK; E-Mail:;Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 401120, China;Kent Business School, University of Kent, Canterbury CT2 7PE, UK; E-Mail:

关键词: remaining useful life;    battery capacity;    lithium-ion batteries;    adaptive bathtub-shaped function;    mean average precision;    mean standard deviation;    swarm fish algorithm;   

DOI  :  10.3390/en6063082

来源: mdpi

【 摘 要 】

Batteries are one of the most important components in many mechatronics systems, as they supply power to the systems and their failures may lead to reduced performance or even catastrophic results. Therefore, the prediction analysis of remaining useful life (RUL) of batteries is very important. This paper develops a quantitative approach for battery RUL prediction using an adaptive bathtub-shaped function (ABF). ABF has been utilised to model the normalised battery cycle capacity prognostic curves, which attempt to predict the remaining battery capacity with given historical test data. An artificial fish swarm algorithm method with a variable population size (AFSAVP) is employed as the optimiser for the parameter determination of the ABF curves, in which the fitness function is defined in the form of a coefficient of determination (). A 4 × 2 cross-validation (CV) has been devised, and the results show that the method can work valuably for battery health management and battery life prediction.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.