Article
Automation & Control Systems
Wenquan Ou, Chun Wang, Aihua Tang, Bo Huang, Kang Liu
Summary: This paper presents a multistate joint estimation method of ultracapacitor based on trans-scale dual extended Kalman filter to predict SOC and model parameters in real-time. The method combines an ultracapacitor model with two Kalman filters, one for SOC estimation and another for trans-scale updating of model parameters. Validation results show that the proposed algorithm has higher estimation accuracy and more stable convergence ability compared to other two traditional SOC estimation methods.
CONTROL ENGINEERING PRACTICE
(2023)
Article
Thermodynamics
Jiang Zhengxin, Shi Qin, Wei Yujiang, Wei Hanlin, Gao Bingzhao, He Lin
Summary: This paper proposes a method using Extended Kalman Particle Filter to estimate the state of charge of lithium-ion battery by identifying parameters through Immune Genetic Algorithm, showing good adaptability and accuracy in experimental scenarios.
Article
Energy & Fuels
Sadia Rimsha, Sadia Murawwat, Muhammad Majid Gulzar, Ahmad Alzahrani, Ghulam Hafeez, Farrukh Aslam Khan, Azher M. Abed
Summary: This research proposes an equivalent circuit model based on the Kalman filtering method and a data-driven technique, the Deep Feed-Forward Neural Network, for accurate SOC estimation of electric vehicle batteries. By identifying lithium-ion battery parameters using a second-order RC equivalent circuit model, accurate SOC estimation is achieved through various filtering methods. Furthermore, the deep feed-forward neural network method is implemented to enhance the accuracy of SOC estimation.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
Liping Chen, Xiaobo Wu, Antonio M. Lopes, Lisheng Yin, Penghua Li
Summary: This paper proposes an SOC estimation method for lithium-ion batteries using a particle swarm optimization algorithm and an unscented Kalman filter, showing good accuracy and robustness under various operational conditions.
Article
Energy & Fuels
Xinyou Lin, Yunliang Tang, Jing Ren, Yimin Wei
Summary: This study proposed a SOC estimation method based on an accurate equivalent circuit model, and demonstrated the accuracy advantage of the n-RC model and its increasing accuracy with the increase of n through experiments.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Mathematics, Interdisciplinary Applications
Liping Chen, Xiaobo Wu, Jose A. Tenreiro Machado, Antonio M. Lopes, Penghua Li, Xueping Dong
Summary: This paper presents a SOC estimation method based on fractional-order square-root unscented Kalman filter (FSR-UKF), and the effectiveness of the algorithm is proven through experiments.
FRACTAL AND FRACTIONAL
(2022)
Article
Engineering, Mechanical
Stefania Lo Feudo, Jean-Luc Dion, Franck Renaud, Gaetan Kerschen, Jean-Philippe Noel
Summary: This study proposes a method for experimental modal analysis of nonlinear systems under the assumption of almost invariant modal shapes, combining video analysis from a high speed/resolution camera and extended Kalman filtering. A clamped-clamped beam with a local nonlinearity is considered and vibrations are measured using (virtual) sensors bonded to the beam outer surface. Specific image processing and video tracking techniques are employed. Instantaneous natural frequencies and modal amplitudes are identified using a data assimilation method based on extended Kalman and modal filters. The proposed method is evaluated using a numerical example and the performance and limits of the identification process are discussed.
NONLINEAR DYNAMICS
(2023)
Article
Energy & Fuels
Bahman Khaki, Pritam Das
Summary: This paper proposes a new parameter estimation model for Vanadium Redox Flow Battery that is applicable for various charging procedures and shows improved accuracy when compared to previous models. By using two Kalman filter based methods, the discrepancies in the constant voltage mode of the proposed circuit model are reduced significantly. The proposed method can also be extended to estimate the state of charge of the battery with improved accuracy.
JOURNAL OF ENERGY STORAGE
(2021)
Editorial Material
Energy & Fuels
P. Naresh, N. Sai Vinay Kishore, V. Seshadri Sravan Kumar
Summary: Ultracapacitor-based energy storage systems are gaining popularity in Renewable energy and Electric Vehicle applications. This study proposes a linear regression-based approach for accurately estimating the parameters of the simplified electrical equivalent circuit of an ultracapacitor. The study highlights the non-uniqueness of capacitance during charging and discharging modes and provides analysis based on a 24 V laboratory prototype comprising 10 series-connected ultracapacitors.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Himadri Sekhar Bhattacharyya, Amalendu Bikash Choudhury, Chandan Kumar Chanda
Summary: This paper focuses on the battery management system (BMS) and the calculation of state of charge (SOC) in lithium-ion batteries. By using the electrical equivalent circuit model (EECM) and algorithms such as extended Kalman filter (EKF) and dual extended Kalman filter (DEKF), a fairly accurate estimate of SOC can be obtained. The impact of voltage and current sensor bias on SOC is also investigated, and the effectiveness of the algorithms is validated under different conditions.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Multidisciplinary Sciences
Jing Ren, Yonghong Xu, Hongguang Zhang, Fubin Yang, Yifang Yang, Xu Wang, Peng Jin, Denggao Huang
Summary: This study focuses on the parameter identification and SOC estimation of ultracapacitors for electric vehicles. Using the FFRLS algorithm and EKF algorithm, the study shows that these methods have good adaptability and accuracy in estimating the SOC under different temperatures and working conditions.
Article
Energy & Fuels
Mostafa Al-Gabalawy, Nesreen S. Hosny, James A. Dawson, Ahmed Omar
Summary: A study developed a SOC estimation algorithm using extended Kalman filter (EKF) and found that the dual EKF algorithm provided the most accurate estimation for battery parameters through comparative analysis.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Computer Science, Interdisciplinary Applications
Hujin Xie, Jialu Song, Yongmin Zhong, Jiankun Li, Chengfan Gu, Kup-Sze Choi
Summary: This study introduces an innovative approach that combines the nonlinear finite-element method and nonlinear Kalman filtering to achieve real-time simulation of nonlinear deformation behaviors of biological soft tissues, which is successfully applied in surgery simulation.
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
(2021)
Article
Energy & Fuels
Paul Takyi-Aninakwa, Shunli Wang, Hongying Zhang, Emmanuel Appiah, Etse Dablu Bobobee, Carlos Fernandez
Summary: This paper proposes a strong tracking adaptive fading-extended Kalman filter method based on the second-order resistor-capacitor equivalent circuit model for accurate estimation of the state of charge of lithium-ion batteries. Experimental results show that the proposed method outperforms the traditional extended Kalman filter in terms of accuracy and robustness under different working conditions and ambient temperatures.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Energy & Fuels
Yongqi Wang, Yong Cheng, Yong Xiong, Qingzhong Yan
Summary: State of Charge (SOC) estimation is crucial for battery management system in new energy vehicles. This paper proposes a DMC-EKF algorithm based on a second-order RC equivalent circuit model to accurately estimate SOC by updating the open circuit voltage (OCV) using the dynamic matrix control (DMC) algorithm. The results show that the DMC-EKF algorithm achieves higher accuracy and robustness compared to other algorithms.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Tianyu Chen, Zhibin Lu, Guangjin Zeng, Yongmin Xie, Jie Xiao, Zhifeng Xu
Summary: The study introduces a high-performance LSGM electrolyte-supported tubular DC-SOFC stack for portable applications, which shows great potential in developing into high-performing, efficient, and environmentally friendly portable power sources for distributed applications.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Wenbin Tong, Yili Chen, Shijie Gong, Shaokun Zhu, Jie Tian, Jiaqian Qin, Wenyong Chen, Shuanghong Chen
Summary: In this study, a three-dimensional porous NiO interface layer with enhanced anode dynamics is fabricated, forming a Schottky contact with the zinc substrate, allowing rapid and uniform zinc plating both inside and below the interface layer. The resulting NiO@Zn exhibits exceptional stability and high capacity retention.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yafeng Bai, Kaidi Li, Liying Wang, Yang Gao, Xuesong Li, Xijia Yang, Wei Lu
Summary: In this study, a flexible zinc ion supercapacitor with gel electrolytes, porous alpha-MnO2@reduced graphene oxide cathode, and activated carbon/carbon cloth anode was developed. The device exhibits excellent electrochemical performance and stability, even at low temperatures, with a high cycle retention rate after 5000 cycles.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Anmol Jnawali, Matt D. R. Kok, Francesco Iacoviello, Daniel J. L. Brett, Paul R. Shearing
Summary: This article presents the results of a systematic study on the electrochemical performance and mechanical changes in two types of commercial batteries with different anode chemistry. The study reveals that the swelling of anode layers in batteries with silicon-based components causes deformations in the jelly roll structure, but the presence of a small percentage of silicon does not significantly impact the cycling performance of the cells within the relevant state-of-health range for electric vehicles (EVs). The research suggests that there is room for improving the cell capacities by increasing the silicon loading in composite anodes to meet the increasing demands on EVs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yohandys A. Zulueta, My Phuong Pham-Ho, Minh Tho Nguyen
Summary: Advanced atomistic simulations were used to study ion transport in the Na- and K-doped lithium disilicate Li2Si2O5. The results showed that Na and K doping significantly enhanced Li ion diffusion and conduction in the material.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Zongying Han, Hui Dong, Yanru Yang, Hao Yu, Zhibin Yang
Summary: An efficient phase inversion-impregnation approach is developed to fabricate BaO-decorated Ni8 mol% YSZ anode-supported tubular solid oxide fuel cells (SOFCs) with anti-coking properties. BaO nanoislands are successfully introduced inside the Ni-YSZ anode, leading to higher peak power densities and improved stability in methane fuel. Density functional theory calculations suggest that the loading of BaO nanoislands facilitates carbon elimination by capturing and dissociating H2O molecules to generate OH.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Suresh Mamidi, Dan Na, Baeksang Yoon, Henu Sharma, Anil D. Pathak, Kisor Kumar Sahu, Dae Young Lee, Cheul-Ro Lee, Inseok Seo
Summary: Li-CO2 batteries, which utilize CO2 and have a high energy density, are hindered in practical applications due to slow kinetics and safety hazards. This study introduces a stable and highly conductive ceramic-based solid electrolyte and a metal-organic framework catalyst to improve the safety and performance of Li-CO2 batteries. The optimized Li-CO2 cell shows outstanding specific capacity and cycle life, and the post-cycling analysis reveals the degradation mechanism of the electrodes. First-principles calculations based on density functional theory are also performed to understand the interactions between the catalyst and the host electrode. This research demonstrates the potential of MOF cathode catalyst for stable operation in Li-CO2 batteries.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Ganghua Xiang, Zhihuan Qiu, Huilong Fei, Zhigang Liu, Shuangfeng Yin, Yuen Wu
Summary: In this study, a CeFeOx-supported Pt single atoms and subnanometric clusters catalyst was developed, which exhibits enhanced catalytic activity and stability for the preferential oxidation of CO in H2-rich stream through synergistic effect.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Dimitrios Chatzogiannakis, Marcus Fehse, Maria Angeles Cabanero, Natalia Romano, Ashley Black, Damien Saurel, M. Rosa Palacin, Montse Casas-Cabanas
Summary: By coupling electrochemical testing to operando synchrotron based X-ray absorption and powder diffraction experiments, blended positive electrodes consisting of LiMn2O4 spinel (LMO) and layered LiNi0.5Mn0.3Co0.2O2 (NMC) were studied to understand their redox mechanism. It was found that blending NMC with LMO can enhance energy density at high rates, with the blend containing 25% LMO showing the best performance. Testing with a special electrochemical setup revealed that the effective current load on each blend component can vary significantly from the nominal rate and also changes with SoC. Operando studies allowed monitoring of the oxidation state evolution and changes in crystal structure, in line with the expected behavior of individual components considering their electrochemical current loads.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Chiara Cementon, Daniel Dewar, Thrinathreddy Ramireddy, Michael Brennan, Alexey M. Glushenkov
Summary: This Perspective discusses the specific power and power density of lithium-ion capacitors, highlighting the fact that their power characteristics are often underestimated. Through analysis, it is found that lithium-ion capacitors can usually achieve power densities superior to electrochemical supercapacitors, making them excellent alternatives to supercapacitors.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Weihao Wang, Hao Yu, Li Ma, Youquan Zhang, Yuejiao Chen, Libao Chen, Guichao Kuang, Liangjun Zhou, Weifeng Wei
Summary: This study achieved an improved electrolyte with excellent low-temperature and high-voltage performance by regulating the Li+ solvation structure and highly concentrating it. The electrolyte exhibited outstanding oxidation potential and high ionic conductivity under low temperature and high voltage conditions, providing a promising approach for the practical application of high-voltage LIBs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Martin Bures, Dan Gotz, Jiri Charvat, Milos Svoboda, Jaromir Pocedic, Juraj Kosek, Alexandr Zubov, Petr Mazur
Summary: Vanadium redox flow battery is a promising energy storage solution with long-term durability, non-flammability, and high overall efficiency. Researchers have developed a mathematical model to simulate the charge-discharge cycling of the battery, and found that hydraulic connection of electrolyte tanks is the most effective strategy to reduce capacity losses, achieving a 69% reduction.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
M. Rodriguez-Gomez, J. Campo, A. Orera, F. de La Fuente, J. Valenciano, H. Fricke, D. S. Hussey, Y. Chen, D. Yu, K. An, A. Larrea
Summary: In this study, we analysed the operando performance of industrial lead cells using neutron diffraction experiments. The experiments revealed the evolution of different phases in the positive electrode, showed significant inhomogeneity of phase distribution inside the electrode, and estimated the energy efficiency of the cells.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Jiawei Liu, Chenpeng Wang, Yue Yao, Hao Ye, Yinglong Liu, Yingli Liu, Xiaoru Xu, Zhicong Chen, Huazheng Yang, Gang Wu, Libin Lei, Chao Wang, Bo Liang
Summary: The study focuses on utilizing double conductive Ni-pads as anode collectors in micro-tubular solid oxide fuel cells. The simulation results show excellent performance and stability of DCNPs, and also highlight the potential applications in various fields.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yang Wang, Kangjie Zhou, Lang Cui, Jiabing Mei, Shengnan Li, Le Li, Wei Fan, Longsheng Zhang, Tianxi Liu
Summary: This study presents a polyimide sandwiched separator (s-PIF) for improving the cycling stability of Li-metal batteries. The s-PIF separator exhibits superior mechanical property, electrolyte adsorption/retention and ion conductivity, and enables dendrite-free Li plating/stripping process.
JOURNAL OF POWER SOURCES
(2024)