A Novel Real-Time State-of-Health and State-of-Charge Co-Estimation Method for LiFePO4 Battery

	A Novel Real-Time State-of-Health and State-of-Charge Co-Estimation Method for LiFePO4 Battery
	Qiao, Rong-Xue 1; Zhang, Ming-Jian 1; Liu, Yi-Dong 1; Ren, Wen-Ju 1; Lin, Yuan 1,2; Pan, Feng 1
刊名	CHINESE PHYSICS LETTERS
	2016-07-01
卷号	33 期号:7
英文摘要	The state of charge (SOC) and state of health (SOH) are two of the most important parameters of Li-ion batteries in industrial production and in practical applications. The real-time estimation for these two parameters is crucial to realize a safe and reliable battery application. However, this is a great problem for LiFePO4 batteries due to the large constant potential plateau in the charge/discharge process. Here we propose a combined SOC and SOH co-estimation method based on the experimental test under the simulating electric vehicle working condition. A first-order resistance-capacitance equivalent circuit is used to model the battery cell, and three parameter values, ohmic resistance (R-s), parallel resistance (R-p) and parallel capacity (C-p), are identified from a real-time experimental test. Finally we find that R-p and C-p could be utilized to make a judgement on the SOH. More importantly, the linear relationship between C-p and the SOC is established to make the estimation of the SOC for the first time.
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/35604]
专题	化学研究所_光化学实验室
作者单位	1.Peking Univ, Sch Adv Mat, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Qiao, Rong-Xue,Zhang, Ming-Jian,Liu, Yi-Dong,et al. A Novel Real-Time State-of-Health and State-of-Charge Co-Estimation Method for LiFePO4 Battery[J]. CHINESE PHYSICS LETTERS,2016,33(7).
APA	Qiao, Rong-Xue,Zhang, Ming-Jian,Liu, Yi-Dong,Ren, Wen-Ju,Lin, Yuan,&Pan, Feng.(2016).A Novel Real-Time State-of-Health and State-of-Charge Co-Estimation Method for LiFePO4 Battery.CHINESE PHYSICS LETTERS,33(7).
MLA	Qiao, Rong-Xue,et al."A Novel Real-Time State-of-Health and State-of-Charge Co-Estimation Method for LiFePO4 Battery".CHINESE PHYSICS LETTERS 33.7(2016).