Journal ArticleDOI
Electrochemical Model Based Observer Design for a Lithium-Ion Battery
Reinhardt Klein,Nalin Chaturvedi,Jake Christensen,Jasim Ahmed,Rolf Findeisen,Aleksandar Kojic +5 more
TLDR
This work proposes an output error injection observer based on a reduced set of partial differential-algebraic equations that has a less complex structure, while it still captures the main dynamics of a lithium-ion battery.Abstract:
Batteries are the key technology for enabling further mobile electrification and energy storage. Accurate prediction of the state of the battery is needed not only for safety reasons, but also for better utilization of the battery. In this work we present a state estimation strategy for a detailed electrochemical model of a lithium-ion battery. The benefit of using a detailed model is the additional information obtained about the battery, such as accurate estimates of the internal temperature, the state of charge within the individual electrodes, overpotential, concentration and current distribution across the electrodes, which can be utilized for safety and optimal operation. Based on physical insight, we propose an output error injection observer based on a reduced set of partial differential-algebraic equations. This reduced model has a less complex structure, while it still captures the main dynamics. The observer is extensively studied in simulations and validated in experiments for actual electric-vehicle drive cycles. Experimental results show the observer to be robust with respect to unmodeled dynamics as well as to noisy and biased voltage and current measurements. The available state estimates can be used for monitoring purposes or incorporated into a model based controller to improve the performance of the battery while guaranteeing safe operation.read more
Citations
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Journal ArticleDOI
Critical review of the methods for monitoring of lithium-ion batteries in electric and hybrid vehicles
TL;DR: In this paper, the methods for monitoring the battery state of charge, capacity, impedance parameters, available power, state of health, and remaining useful life are reviewed with the focus on elaboration of their strengths and weaknesses for the use in on-line BMS applications.
Journal ArticleDOI
Battery Management System: An Overview of Its Application in the Smart Grid and Electric Vehicles
TL;DR: In this paper, a battery management system (BMS) for the smart grid and electric vehicles (EVs) has been proposed to improve the performance of Li-ion batteries.
Journal ArticleDOI
Lithium-ion battery fast charging: A review
Anna Tomaszewska,Chu Zhengyu,Xuning Feng,Simon O'Kane,Xinhua Liu,Jingyi Chen,Chenzhen Ji,Elizabeth Elaine Endler,Ruihe Li,Liu Lishuo,Yalun Li,Siqi Zheng,Sebastian Vetterlein,Ming Gao,Jiuyu Du,Michael Parkes,Minggao Ouyang,Monica Marinescu,Gregory J. Offer,Billy Wu +19 more
TL;DR: Robust model-based charging optimisation strategies are identified as key to enabling fast charging in all conditions, with a particular focus on techniques capable of achieving high speeds and good temperature homogeneities.
Journal ArticleDOI
Review of simplified Pseudo-two-Dimensional models of lithium-ion batteries
TL;DR: A review of the studies on the modeling of Li-ion batteries with simplified P2D models is presented in this article, where the assumptions on which these models rest are stated, the calculation methods are examined, the advantages and the drawbacks of the models are discussed and their applications are presented.
Journal ArticleDOI
A new neural network model for the state-of-charge estimation in the battery degradation process
Liuwang Kang,Xuan Zhao,Jian Ma +2 more
TL;DR: In this article, a new Radial Basis Function Neural Network (RBFNN) model is proposed to eliminate the battery degradation's effect on the battery state-of-charge (SOC) estimation accuracy.
References
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Journal ArticleDOI
Modeling of Galvanostatic Charge and Discharge of the Lithium/Polymer/Insertion Cell
TL;DR: In this article, the galvanostatic charge and discharge of a lithium anode/solid polymer separator/insertion cathode cell is modeled using concentrated solution theory, which is general enough to include a wide range of polymeric separator materials, lithium salts, and composite insertion cathodes.
Journal ArticleDOI
Extended Kalman filtering for battery management systems of LiPB-based HEV battery packs: Part 2. Modeling and identification
TL;DR: In this article, an extended Kalman filter (EKF) was used to estimate the battery state of charge, power fade, capacity fade, and instantaneous available power of a hybrid electric vehicle battery pack.
Journal ArticleDOI
Extended Kalman filtering for battery management systems of LiPB-based HEV battery packs: Part 3. State and parameter estimation
TL;DR: In this article, extended Kalman filtering (EKF) is used to estimate battery state-of-charge, power fade, capacity fade, and instantaneous available power for hybrid-electric-vehicle battery packs.
Journal ArticleDOI
Simulation and Optimization of the Dual Lithium Ion Insertion Cell
TL;DR: In this article, the galvanostatic charge and discharge of a dual lithium ion insertion (rocking chair) cell are modeled with concentrated solution theory, and the insertion of lithium into and out of active electrode material is simulated using superposition, greatly simplifying the numerical calculations.