An electrochemical-mechanical coupled multi-scale modeling method and full-field stress distribution of lithium-ion battery

Wang, Yanan; Ni, Ruke; Jiang, X. Y.; Yin, Mingyue; Zhang, Dejun; Xie, Ze‐Ming

doi:10.1016/j.apenergy.2023.121444

Cited by 14 publications

(2 citation statements)

References 30 publications

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“…In addition, LIBs are highly interdisciplinary, involving, for instance, mechanical degradation, chemical diffusion, electrochemical reactions, electron conduction, and others [36]. Therefore, the study of multiple scales and multi-physical LIBs has always been a key direction for researchers [37,38].…”

Section: Electrochemical Modeling Methodsmentioning

confidence: 99%

Advances in the Study of Techniques to Determine the Lithium-Ion Battery’s State of Charge

Liu,

Gao,

Marma

et al. 2024

Energies

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This study explores the challenges and advances in the estimation of the state of charge (SOC) of lithium-ion batteries (LIBs), which are crucial to optimizing their performance and lifespan. This review focuses on four main techniques of SOC estimation: experimental measurement, modeling approach, data-driven approach, and joint estimation approach, highlighting the limitations and potential inaccuracies of each method. This study suggests a combined approach, incorporating correction parameters and closed-loop feedback, to improve measurement accuracy. It introduces a multi-physics model that considers temperature, charging rate, and aging effects and proposes the integration of models and algorithms for optimal estimation of SOC. This research emphasizes the importance of considering temperature and aging factors in data-driven approaches. It suggests that the fusion of different methods could lead to more accurate SOC predictions, an important area for future research.

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Section: Electrochemical Modeling Methodsmentioning

confidence: 99%

Advances in the Study of Techniques to Determine the Lithium-Ion Battery’s State of Charge

Liu,

Gao,

Marma

et al. 2024

Energies

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“…The constitutive equation for deformation-concentration coupling in the AM particle can be expressed as: 50,51 E c 1 3 21…”

Section: Modelmentioning

confidence: 99%

Electro-Chemo-Mechanical Model for the Damage in Porous Electrodes of Lithium-Ion Batteries

Xi,

Zhang,

Huang

et al. 2024

J. Electrochem. Soc.

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An electro-chemo-mechanical model is developed for lithium-ion battery (LIB) considering the damage of active material (AM) particles. The established model is used to evaluate the effect of stress and the effect of damage on the electro-chemo-mechanical behavior of cathode. Computational results suggest that moderate stress is beneficial for the battery performance, while damage generated by high stress can considerably degrade the battery capacity. Three ways to model the structure of electrodes are compared. The ordered stacking particles lead to an underestimation of battery performance, while the nonoverlapped random stacking particles lead to an overestimation of battery performance. The impact of several structural factors on the electro-chemo-mechanical behaviors of LIB is investigated in detail. Smaller particle size is beneficial for the battery performance. Furthermore, an increasing particle size from the separator to the current collector leads to higher capacity compared with decreasing gradient or no gradient. The fundamental understanding of electro-chemo-mechanical behaviors of LIB can benefit the design of novel electrodes with more stable performance and a longer lifespan.

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Insight Understanding of External Pressure on Lithium Plating in Commercial Lithium‐Ion Batteries

Yu,

Wang,

Zhang

et al. 2024

Adv Funct Materials

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Lithium‐ion batteries (LIBs), as efficient electrochemical energy storage devices, have been successfully commercialized. Lithium plating at anodes has been attracting increasing attention as batteries advance toward high energy density and large size, given its pivotal role in affecting the lifespan, safety, and fast‐charging performance of LIBs. Lithium plating mostly happens during fast charging or charging at low temperatures. However, external pressure is often overlooked as an essential factor that influences lithium plating in LIBs. This review analyzes and discusses the influence of external pressure on performance for commercial LIBs, with a particular focus on lithium plating. Recent advances in this topic, including experimental results and mechanism analyses, are reviewed. Lithium plating is explored by examining the influence of pressure on the internal morphology and electrochemical behavior of batteries. It is emphasized that external pressure affects performance through ion transport, electron transport, and their heterogeneities, thereby increasing the risk of lithium plating in batteries. Subsequently, the rationale for external pressure mitigating lithium plating is elucidated from the perspective of the morphology optimization inside LIBs. Overall, this review provides valuable insights into the role of external pressure on lithium plating in commercial LIBs, practically guiding their rational design and development.

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An electrochemical-mechanical coupled multi-scale modeling method and full-field stress distribution of lithium-ion battery

Cited by 14 publications

References 30 publications

Advances in the Study of Techniques to Determine the Lithium-Ion Battery’s State of Charge

Advances in the Study of Techniques to Determine the Lithium-Ion Battery’s State of Charge

Electro-Chemo-Mechanical Model for the Damage in Porous Electrodes of Lithium-Ion Batteries

Insight Understanding of External Pressure on Lithium Plating in Commercial Lithium‐Ion Batteries

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