Characterization of plasticity and fracture of shell casing of lithium-ion cylindrical battery

Zhang, Xiaowei; Wierzbicki, Tomasz

doi:10.1016/j.jpowsour.2015.01.077

Cited by 107 publications

(51 citation statements)

References 18 publications

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“…The motivation for such work is often to provide data to either parameterize or validate CAE models and simulations. For static test methods, there has been a clear focus on obtaining data from materials found within Li-ion cells such as mechanical strain and bending [16][17][18][19], force displacement [16][17][18][19][20], creep [19] and tolerance changes during charge and discharge [21]. Within the dynamic testing domain there has been a significant focus towards assessing the crashworthiness and robustness of Li-ion cells via mechanical crush [16,20,22], penetration [18,23], impact resistance [16,22], mechanical shock [16,24] and the effect of environmental changes such as temperature [25] and decompression [26].…”

Section: Introductionmentioning

confidence: 99%

Vibration Durability Testing of Nickel Manganese Cobalt Oxide (NMC) Lithium-Ion 18,650 Battery Cells

et al. 2016

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Electric vehicle (EV) manufacturers are employing cylindrical format cells in the construction of the vehicles' battery systems. There is evidence to suggest that both the academic and industrial communities have evaluated cell degradation due to vibration and other forms of mechanical loading. The primary motivation is often the need to satisfy the minimum requirements for safety certification. However, there is limited research that quantifies the durability of the battery and in particular, how the cells will be affected by vibration that is representative of a typical automotive service life (e.g., 100,000 miles). This paper presents a study to determine the durability of commercially available 18,650 cells and quantifies both the electrical and mechanical vibration-induced degradation through measuring changes in cell capacity, impedance and natural frequency. The impact of the cell state of charge (SOC) and in-pack orientation is also evaluated. Experimental results are presented which clearly show that the performance of 18,650 cells can be affected by vibration profiles which are representative of a typical vehicle life. Consequently, it is recommended that EV manufacturers undertake vibration testing, as part of their technology selection and development activities to enhance the quality of EVs and to minimize the risk of in-service warranty claims.

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Section: Introductionmentioning

confidence: 99%

Vibration Durability Testing of Nickel Manganese Cobalt Oxide (NMC) Lithium-Ion 18,650 Battery Cells

et al. 2016

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“…Thus, any interruptions to the pathway for lithium or lithium ions can cause the inefficient utilization of the active materials and the degradation of the capacity. These interruptions of the electron transportation can be summarized as: hindrance of the electron transport inside the electrode because of high electric resistance; precipitation of thick SEI films to lead to the blockage of the contact of Li ions with electrons and considerable shear stress at the electrode surface; particle fracture, which may increase the electrical resistance because of the loss of material connection; gas generation, which imposes a similar effect as a thick surface layer or particle fractures, if the generated gas stays within the electrode or aggregates as a layer on the electrode surface or in the electrolyte; and loss of electrical contact between the electrode materials and current collector caused by binder degradation or impact from mechanical stress . Electrical connectivity between different components of the cells is easily injured by a mechanical impact.…”

Section: Introductionmentioning

confidence: 99%

“…The closure of the pores on the separator affects the ion transport in the electrolyte negatively and may lead to capacity fading. Moreover, the separator may resist the expansion of the anode and releases the generated stress and changes the reaction kinetics …”

Section: Introductionmentioning

confidence: 99%

Mechanical Behavior during Electrochemical and Mechanical Deactivation of an Aged Electrode in a Lithium‐Ion Pouch Cell

Shi

Kunz

2016

Energy Tech

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The mechanical behavior of lithium‐ion battery electrodes that undergo a severe capacity decrease are investigated by monitoring the out‐of‐plane displacement on the external surface of a pouch cell. The capacity degradation does not decrease gradually as a function of time but exhibits distinct behaviors with different causes. These are electrochemical aging during cycling and mechanical injury caused by manufacture failure. In the former case, both the permanent evolution and the anomalous distribution of the displacement accompanied with a consistent decrease of the capacity are correlated to the local deterioration of the adhesion of the material layers. The mechanical injury accelerates the capacity decrease by destroying the electrode structure, which results in a sudden decrease of the surface displacement. If the displacement reaches its limit, only a dynamic fluctuation remains, which reflects the remaining electrochemical process at a low level. As a result, we conclude that the loss of electrical connectivity between the active material layer and the current collector is responsible for the severe capacity degradation. This effect is more pronounced on the anode than the cathode. Both electrochemical cycling and mechanical injury can result in the weakening of the adhesion of the anode material on the current collector.

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“…Zhang and Wierzbicki conducted a comprehensive research to characterize the plastic and fracture behavior of the shell casings of 18,650 cylindrical cells [70]. For this purpose, the parameters of the Swift-Voce hardening law as well as the Modified Mohr-Coulomb fracture model were calibrated based on the tensile tests and punch indentation tests on low carbon steel shell casing samples.…”

Section: Cylindrical Cellsmentioning

confidence: 99%

Review: Characterization and Modeling of the Mechanical Properties of Lithium-Ion Batteries

Kermani

Sahraei

2017

Energies

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Li-ion batteries have become a dominant power source in consumer electronics and vehicular applications. The mobile use of batteries subjects them to various mechanical loads. The mechanisms that follow a mechanical deformation and lead to damage and failure in Li-ion batteries have only been studied in recent years. This paper is a comprehensive review of advancements in experimental and computational techniques for characterization of Li-ion batteries under mechanical abuse loading scenarios. A number of recent studies have used experimental methods to characterize deformation and failure of batteries and their components under various tensile and compressive loading conditions. Several authors have used the test data to propose material laws and develop finite element (FE) models. Then the models have been validated against tests at different levels from comparison of shapes to predicting failure and onset of short circuit. In the current review main aspects of each study have been discussed and their approach in mechanical testing, material characterization, FE modeling, and validation is analyzed. The main focus of this review is on mechanical properties at the level of a single battery.

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Characterization of plasticity and fracture of shell casing of lithium-ion cylindrical battery

Cited by 107 publications

References 18 publications

Vibration Durability Testing of Nickel Manganese Cobalt Oxide (NMC) Lithium-Ion 18,650 Battery Cells

Vibration Durability Testing of Nickel Manganese Cobalt Oxide (NMC) Lithium-Ion 18,650 Battery Cells

Mechanical Behavior during Electrochemical and Mechanical Deactivation of an Aged Electrode in a Lithium‐Ion Pouch Cell

Review: Characterization and Modeling of the Mechanical Properties of Lithium-Ion Batteries

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