Deformation and failure mechanisms of 18650 battery cells under axial compression

Zhu, Juner; Zhang, Xiaowei; Sahraei, Elham; Wierzbicki, Tomasz

doi:10.1016/j.jpowsour.2016.10.064

Cited by 180 publications

(70 citation statements)

References 20 publications

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“…A recent review on the modeling of lithium-ion cells revealed 1 that previous studies have focused mostly on two common form factors, pouch 2-7 and cylindrical [7][8][9][10][11][12][13][14][15][16][17][18][19] cells and their components. Recent accidents have highlighted the importance of understanding the behavior of such cells under extreme loading scenarios that may lead to failure and short circuit.…”

Section: Introductionmentioning

confidence: 99%

“…In pouch cells, the sheets of electrodes are stacked, while in cylindrical cells, the multilayer system is wound around a central mandrill. A recent review on the modeling of lithium-ion cells revealed 1 that previous studies have focused mostly on two common form factors, pouch 2-7 and cylindrical [7][8][9][10][11][12][13][14][15][16][17][18][19] cells and their components. [20][21][22][23][24][25][26] A third type of batteries commonly used in various applications such as electric vehicles is the prismatic cell.…”

Section: Introductionmentioning

confidence: 99%

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Elliptical lithium‐ion batteries: Transverse and axial loadings under wet/dry conditions

Kermani

Dixon

Sahraei

2019

Energy Science & Engineering

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Use of lithium‐ion batteries in mobile applications requires understanding of their response in the case of an impact and mechanical damage. Several studies have investigated the properties of pouch and cylindrical cells. However, the mechanical response of the third common form factor of batteries, namely prismatic cells, has not been fully studied. In this paper, extensive experiments were used to investigate the material properties of small commercial prismatic cells with round corners, in transverse and axial directions. Also, the effects of liquid electrolyte on deformation and failure patterns of cells were studied. Results showed that in quasi‐static tests, the wet and dry cells exhibited similar response in terms of load displacement curves. However, the wet cells showed lower failure points and different fracture patterns. Additionally, the type of separator used in the cells affected the peak load. An analytical approach was proposed to extract material properties from full cell crush testing. Then, finite element models were developed and calibrated using the extracted parameters. The models successfully predicted the load‐displacement response of the cells and the onset of short circuit. Additionally, it was shown that consideration of anisotropic material response has a significant effect on proper prediction of axial loading behavior.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Elliptical lithium‐ion batteries: Transverse and axial loadings under wet/dry conditions

Kermani

Dixon

Sahraei

2019

Energy Science & Engineering

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“…There were already many studies related to crashworthiness analysis of battery cells, especially for 18650's cylindrical cell [22][23][24]. For example, the work by Juner Zhu et al reported that the most important key to determining the battery safety is to measure the axial shortening of the cylindrical battery during the crash event [22]. The result shows that the axial shortening of the battery should not exceed 3 mm in order to avoid short-circuit due to greatly-damaged separator.…”

Section: Failure Analysis Of Battery Cellsmentioning

confidence: 99%

Battery Cells for Electric Vehicles

Halimah¹,

Rahardian²,

Budiman³

2019

IJSTT

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The shifting trend of conventional to the electric drivetrain in automotive industries makes batteries become the most favorable energy storage. There are three types of battery cells that are commonly used for electric vehicles i.e., cylindrical cells, pouch cells, and prismatic cells. The use of active material such as lithium-ion in the battery of electric vehicles could bring some issues related to the safety field. For that reason, comprehensive research on battery failure analysis needs to be conducted. This paper reviews the recent progress of the use of battery cells in electric vehicles and some challenges which must be considered to assure their safety. There are a lot of studies on battery failure analysis, which mainly focuses on the appearance of a short circuit as the main cause of the thermal runaway event. Several proposals on predicting short circuits in the battery due to various loading are comprehensively discussed. Those research results can be considered to establish regulations in designing battery protectors.

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“…However, due to the layered structure of jellyrolls, it is important to distinguish between the mechanical properties of each layer when subject to axial loads. Zhu et al studied the 18,650 cylindrical cells in axial compression (SOC = 0) using experimental, numerical, and analytical approaches [46]. A detailed axisymmetric 3D FE model was developed in ABAQUS/explicit to investigate the sequence of deformation and failure mechanisms.…”

Section: Cylindrical Cellsmentioning

confidence: 99%

“…Four types of LIBs are commonly used in industrial applications: pouch, elliptical, cylindrical, and prismatic cells, see Figure 1. [9,37,45,46]. Going beyond mechanical testing, attempts are made in extracting constitutive material behavior of battery cells or components.…”

Section: Introductionmentioning

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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Deformation and failure mechanisms of 18650 battery cells under axial compression

Cited by 180 publications

References 20 publications

Elliptical lithium‐ion batteries: Transverse and axial loadings under wet/dry conditions

Elliptical lithium‐ion batteries: Transverse and axial loadings under wet/dry conditions

Battery Cells for Electric Vehicles

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

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