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Article
Electrochemistry
Jialong Liu et al.
Summary: In this study, battery aging over an extended low-temperature cycle and at high temperature after the low-temperature cycle was investigated. It was found that battery aging could be divided into two stages, with the first stage characterized by significant capacity fading due to dead lithium, and the second stage characterized by solid electrolyte interphase (SEI) growth. At high temperature, electrolyte decomposition and SEI growth were identified as the primary aging mechanisms.
ELECTROCHIMICA ACTA
(2023)
Article
Electrochemistry
Jiahao Liu et al.
Summary: In this paper, a novel thermal-coupled single particle model with few parameters is developed to promote battery parameter identification at various temperatures in order to establish an appropriate thermal management system for lithium-ion battery packs. A multi-objective stepwise identification scheme based on genetic algorithm is proposed to identify the classified parameters of the battery at different temperatures, using experimental profiles of battery voltage, current, and temperature. The proposed battery model and parameter identification method are validated through simulations and experiments, demonstrating their ability to accurately describe the electrochemical and thermal characteristics of the battery and identify its electrochemical states, providing a strong foundation for battery thermal management system development.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Energy & Fuels
Yalun Li et al.
Summary: In the coming years, renewable energy generation and new power systems will play a crucial role in mitigating extreme climate change and achieving carbon neutrality. To accommodate the increasing amount of renewable energy, new power systems face challenges such as rising electricity prices and declining grid stability. Energy storage has emerged as a key solution to address these challenges, with a focus on lithium-ion batteries and hydrogen for short and long duration storage respectively, particularly after 2035. Three promising energy storage applications are proposed for supporting the clean energy revolution in China, including large-scale hydrogen energy storage in Northeastern China, centralized lithium-ion battery stations for grid regulation, and distributed electric vehicles for load terminal in developed coastal regions. The development status, technical bottlenecks, and potential solutions of these energy storage paths are discussed in detail, emphasizing the need for a comprehensive and inclusive energy storage market to promote the widespread adoption of energy storage technology and the achievement of carbon neutrality.
Article
Energy & Fuels
Youzhi Song et al.
Summary: Increasing the loading and calendering density of Ni-rich cathodes using a mixture of small to large particles is a practical approach for high-energy lithium-ion batteries. However, these batteries still experience rapid capacity degradation. This research investigates the nonhomogeneous degradation of a Ni-rich cathode, characterizing it by particle size and identifying the correlation between volume change and state-of-charge. The study shows that size-dependent nonhomogeneity promotes performance decay in Ni-rich cathodes, particularly at high cutoff voltages and rates.
Article
Energy & Fuels
Xiaoqiang Zhang et al.
Summary: This paper investigates the elastoplastic behavior and fatigue life of the current collector for lithium-ion batteries. The effects of thickness and yield stress on elastoplastic behavior are discussed, along with the influence of different collector thicknesses on stress in the active layer. Fatigue life is predicted based on different elastoplastic behaviors. The results suggest that decreasing current collector thickness or yield stress leads to a shift from plastic shakedown to cyclic plasticity, with the peak stress in the collector increasing and stress in the active layer decreasing. CP not only relieves stress in the active layer but also improves the battery's energy density. These findings provide new insights into the fatigue and elastoplastic behavior of LIBs collectors.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Changfu Yuan et al.
Summary: This study systematically analyzed the abrupt degradation phenomenon in lithium-ion batteries (LIBs) and found that electrode homogeneity is a key factor for the abrupt decay.
SOLID STATE IONICS
(2022)
Article
Engineering, Electrical & Electronic
Kailong Liu et al.
Summary: This paper proposes a tree boosting model-based framework to analyze and predict the variation of battery electrode properties during the early production stage. It quantifies the effects of key parameters on battery electrode performance and provides satisfying early-stage predictions.
AUTOMOTIVE INNOVATION
(2022)
Article
Chemistry, Physical
Mark G. Bason et al.
Summary: The rapid transition from fossil fuel propelled transport to electric vehicles depends on high-performing, high energy density batteries. To optimize the use of battery cells and develop new battery chemistries and geometries, various diagnostic and monitoring tools are needed. This study introduces sensitive magnetometry performed outside the battery, which allows for non-invasive detection of internal current distribution. By using a sensor array to image the internal current flow, it is possible to detect deviations around high current density areas. This opens up possibilities for rapid and reliable assessment throughout the battery life cycle.
JOURNAL OF POWER SOURCES
(2022)
Article
Thermodynamics
Xiaoqiang Zhang et al.
Summary: In this paper, a one-dimensional electrochemical model and a three-dimensional axisymmetric heat transfer model are coupled to investigate the electrochemical and thermal behavior of cylindrical lithium-ion batteries (LIBs). The models are verified using experimental data and compared for their accuracy and computational cost. The thermal behavior of cylindrical LIBs at different discharge rates is studied, and factors affecting temperature uniformity are analyzed. The findings provide insights for choosing appropriate electrochemical-thermal coupling models and improving the prediction accuracy of temperature signals in the battery thermal management system.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Review
Engineering, Electrical & Electronic
Rui Cao et al.
Summary: This paper summarizes the non-invasive characteristic curve analysis for lithium-ion batteries and its applications in exploring battery aging mechanism and constructing data-driven models. The recent progress and applications of characteristic curves are discussed, along with the value of battery CCA in cloud-based battery management platforms.
AUTOMOTIVE INNOVATION
(2022)
Article
Automation & Control Systems
Kailong Liu et al.
Summary: This paper provides a systematic review of recent advancements in electrochemical model development and parameterization for battery management systems. It summarizes and analyzes classic pseudo-two-dimensional models and related model order reduction methodologies, as well as enhanced models considering cell internal inhomogeneity. The paper also discusses parameter identification techniques and solutions for optimizing the parameterization procedure, and highlights current research gaps and challenges.
CONTROL ENGINEERING PRACTICE
(2022)
Article
Chemistry, Physical
Kenji Sato et al.
Summary: In this study, we successfully detected electrodeposited lithium in an automotive prismatic battery using synchrotron X-ray diffraction. The distribution of deposited lithium and the state of charge of the positive electrode were mapped and correlated. This research contributes to the understanding of the relationship between SOC distribution and lithium electrodeposition.
JOURNAL OF POWER SOURCES
(2022)
Article
Energy & Fuels
Wenxue Liu et al.
Summary: In this article, a practical and general framework is proposed to investigate the potential error sources in computationally efficient electrothermal modeling of large-format lithium-ion batteries. The results demonstrate that modeling the thermal interplay between two tabs and the cell body and optimizing the temperature sensor placements should be given high priority. Additionally, the overpotential-based method is preferred for calculating the local generation rates of the battery body for accuracy and generalizability.
Article
Electrochemistry
Tao Sun et al.
Summary: This study establishes a three-dimensional electrochemical model to analyze the inhomogeneous lithium plating behavior in large-format lithium-ion batteries. The results show that temperature gradients have a significant impact on the distribution of plated lithium and the battery voltage relaxation profile.
ELECTROCHIMICA ACTA
(2022)
Article
Electrochemistry
Pengfei Luo et al.
Summary: In this paper, a generalized pseudo three-dimensional (P3D) electrochemical-thermal-mechanical coupling (ETM) model is proposed to describe the multiphysics coupling behavior during the discharge of lithium-ion battery (LIB). The model is established and simulated using COMSOL Multiphysics. The influence of external loads on the LIB is investigated through the stress field, and the dynamic parameters dependent on temperature and lithium concentration are introduced to enhance the model's physical realism. Experimental data validation is performed, and the effect of external loads on the electrochemical process is investigated.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Energy & Fuels
Xiangdong Kong et al.
Summary: Many batteries of electric vehicles and energy storage power stations around the world have experienced sudden spontaneous combustion accidents under normal use. The presence of foreign matter mixed into the battery during the manufacturing process is found to be one of the main causes. By intentionally creating defective batteries, conducting aging experiments, and analyzing different stages, the evolution mechanism of foreign matter defects in the battery is revealed, reproducing the self-induced internal short-circuiting and sudden spontaneous combustion of the battery under non-abuse conditions. Although the evolution of foreign matter defects is uncertain and sporadic, some clues for battery safety warning can still be found from the external characteristic data of the battery. The research results of this paper are helpful in understanding the actual mechanism of sudden spontaneous combustion in batteries and improving battery safety and manufacturing.
Review
Energy & Fuels
Xin Lai et al.
Summary: This study reviews the framework and methods of life cycle assessment (LCA) and evaluates the entire lifespan of lithium-ion batteries (LIBs). The results show that battery production significantly impacts the environment and resources, while battery materials recycling and remanufacturing have considerable environmental and economic values. Moreover, greening of electricity is critical to reducing carbon emissions during the battery life cycle.
Article
Materials Science, Ceramics
Shuxin Zhuang et al.
Summary: The inhomogeneous capacity degradation distribution of large-format LiFePO4-based lithium ion cell after 2500 charge-discharge cycles is analyzed by using various techniques. The results indicate that the capacity degradation is mainly due to active lithium loss rather than crystal structure destruction, and the difference in structure change of LiFePO4 is mainly at the surface.
CERAMICS INTERNATIONAL
(2021)
Article
Electrochemistry
Siqi Tang et al.
Summary: Understanding the temperature distribution and thermal characteristics is crucial for optimizing the thermal safety of lithium-ion batteries. An electrochemical-thermal coupling model of 4.35 V LiCoO2/graphite batteries is established and validated for quantifying the temperature and heat generation characteristics. The study reveals the dominant role of irreversible heat generation from the cathode and provides insights for optimizing strategies for lithium ion batteries.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Harry Charalambous et al.
Summary: The study reveals that heterogeneous battery performance is critical for maximizing cell lifetime capacity and safety, with significant heterogeneity observed during high voltage rapid charging, while pressure effects are not dominant compared to charge rate. Resting periods can slowly balance out lateral heterogeneity, but it regenerates after further fast charging cycles.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Felix Brauchle et al.
Summary: This paper presents a method using AMR sensors to map the magnetic field of lithium-ion cells and proposes an algorithm to calculate the two-dimensional current distribution with high accuracy. The study shows promising results in accurately measuring inhomogeneous current distribution in lithium-ion cells using this setup.
JOURNAL OF POWER SOURCES
(2021)
Article
Energy & Fuels
Ruihe Li et al.
Summary: This study demonstrates the potential of reversible strain heterogeneity as a non-destructive tool for local degradation analysis of large format lithium-ion battery cells. Post-mortem analysis revealed that gas bubbles produced by severe side reactions between graphite particles and electrolyte, as well as heat in regions with high impedance, were responsible for abnormal expansion and sudden capacity drop in aged unconstrained cells. The quick spread of defective regions led to the sudden capacity drop, confirming the usefulness of reversible strain distribution in monitoring battery degradation.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Multidisciplinary Sciences
Zhengrui Xu et al.
NATURE COMMUNICATIONS
(2020)
Article
Electrochemistry
Dafang Wang et al.
ELECTROCHIMICA ACTA
(2020)
Article
Chemistry, Physical
Yudi Kuang et al.
ADVANCED ENERGY MATERIALS
(2019)
Article
Thermodynamics
J. Chiew et al.
APPLIED THERMAL ENGINEERING
(2019)
Review
Chemistry, Physical
Yuxin Zhang et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Review
Energy & Fuels
Xuebing Han et al.
Article
Electrochemistry
Dongsheng Ren et al.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2018)
Article
Energy & Fuels
F. Grimsmann et al.
JOURNAL OF ENERGY STORAGE
(2018)
Article
Chemistry, Physical
Veronika Zinth et al.
JOURNAL OF POWER SOURCES
(2017)
Article
Electrochemistry
S. V. Erhard et al.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2017)
Article
Thermodynamics
Shovon Goutam et al.
APPLIED THERMAL ENGINEERING
(2017)
Article
Electrochemistry
Bernhard Rieger et al.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2016)
Article
Chemistry, Physical
Xuebing Han et al.
JOURNAL OF POWER SOURCES
(2015)
Article
Electrochemistry
S. V. Erhard et al.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2015)
Article
Chemistry, Physical
A. Senyshyn et al.
JOURNAL OF POWER SOURCES
(2014)
Article
Chemistry, Multidisciplinary
Jusef Hassoun et al.
Article
Chemistry, Physical
Weilin Luo et al.
JOURNAL OF POWER SOURCES
(2013)
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Lu Cai et al.
JOURNAL OF POWER SOURCES
(2013)
Article
Electrochemistry
Guangsheng Zhang et al.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2013)
Article
Electrochemistry
Zheng Shen et al.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2013)
Article
Electrochemistry
Juchuan Li et al.
ELECTROCHIMICA ACTA
(2012)
Article
Chemistry, Physical
Yonghuang Ye et al.
JOURNAL OF POWER SOURCES
(2012)
Article
Electrochemistry
J Christensen et al.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2003)
