Fractional‐order modeling and SOC estimation of lithium‐ion battery considering capacity loss

2018 ◽  
Vol 43 (1) ◽  
pp. 417-429 ◽  
Author(s):  
Shuxian Li ◽  
Minghui Hu ◽  
Yunxiao Li ◽  
Changchao Gong
Keyword(s):  
Lithium Ion Battery ◽  
Fractional Order ◽  
Lithium Ion ◽  
Soc Estimation ◽  
Capacity Loss

A nonlinear fractional-order H∞ observer for SOC estimation of battery pack of electric vehicles

2021 ◽  
pp. 095440702199434
Author(s):  
Wei Yue ◽  
Cong-zhi Liu ◽  
Liang Li ◽  
Xiang Chen ◽  
Fahad Muhammad
Keyword(s):  
Fractional Order ◽  
Estimation Method ◽  
Equivalent Circuit Model ◽  
Lithium Ion ◽  
Open Circuit ◽  
Design Criterion ◽  
Observer Design ◽  
Nonlinear Observer ◽  
Battery Pack ◽  
Soc Estimation

This work is focused on designing a fractional-order [Formula: see text] observer and applying it into the state of charge (SOC) estimation for lithium-ion battery pack system. Firstly, a fractional order equivalent circuit model based on the fractional capacitor is established and identified. Secondly, the SOC estimation method based on the fractional-order [Formula: see text] observer is proposed. The nonlinear intrinsic relationship between the open-circuit voltage and SOC is described as a polynomial function, and its Lipschitz proposition has been discussed. Then, the nonlinear observer design criterion is established based on the Lyapunov method. Finally, the effectiveness of the proposed method is verified with high accuracy and robustness by the experiment results.

Dual-Functional Cathodic Prelithiation Reagent of Li3P in Lithium-Ion Battery for Compensating Initial Capacity Loss and Enhancing Safety

2021 ◽  
Author(s):  
Xiaoyi Wang ◽  
Cheng Liu ◽  
Shaojie Zhang ◽  
Haipeng Wang ◽  
Ruying Wang ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Dual Functional ◽  
Capacity Loss ◽  
Initial Capacity

A Nonlinear Observer SOC Estimation Method Based on Electrochemical Model for Lithium-Ion Battery

2021 ◽  
Vol 57 (1) ◽  
pp. 1094-1104
Author(s):  
Yuntian Liu ◽  
Rui Ma ◽  
Shengzhao Pang ◽  
Liangcai Xu ◽  
Dongdong Zhao ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Estimation Method ◽  
Lithium Ion ◽  
Nonlinear Observer ◽  
Soc Estimation ◽  
Electrochemical Model

Analysis on SoC estimation of Lithium ion battery using EKF and LSTM

2021 ◽  
Author(s):  
Ponukupati Ravi Teja ◽  
R. Shanmughasundaram
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Soc Estimation

scholarly journals State of the Art of Lithium-Ion Battery SOC Estimation for Electrical Vehicles

Energies ◽  
2018 ◽  
Vol 11 (7) ◽  
pp. 1820 ◽  
Author(s):  
Ruifeng Zhang ◽  
Bizhong Xia ◽  
Baohua Li ◽  
Libo Cao ◽  
Yongzhi Lai ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
State Of The Art ◽  
Lithium Ion ◽  
Soc Estimation ◽  
Electrical Vehicles
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