Failure of Li-Ion 18650 Cylindrical Cells Subjected to Mechanical Loading and Computational Model Development

Aphale, Siddharth; Rajesh, H; Dandge, Sunil; Mahajan, Rahul; Nandurdikar, Vijay; Murugkar, Milind

doi:10.4271/2021-26-0318

SAE Technical Paper Series 2021

DOI: 10.4271/2021-26-0318

|View full text |Cite

Failure of Li-Ion 18650 Cylindrical Cells Subjected to Mechanical Loading and Computational Model Development

Siddharth Aphale¹,

H Rajesh²,

Sunil Dandge³

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2023

2024

Publication Types

Select...

Other2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Cylindrical Li-Ion Cell Crush CAE Capability in Automotive Application

Bhavsar¹,

Kanvinde²,

Seshadri³

et al. 2023

SAE Technical Paper Series

View full text Add to dashboard Cite

<div class="section abstract"><div class="htmlview paragraph">The world is moving towards E-mobility solutions and Battery Electric Vehicles (BEVs) are the main enabler towards it. Li-ion cells are the fundamental building block of any BEVs. There are three common types of Li-ion cell design i.e., cylindrical cells, Prismatic Cells and Pouch cells. Ensuring safety of BEVs are critical to gain customer trust and acceptance over Internal Combustion Engine (ICE) vehicles. EV fire is found to be one of the major concerns related to using higher energy batteries. During a crash event, Post-Crash Electrical Integrity of the BEV is to be ensured and hence primary focus is on mitigation of Li-ion cell internal short circuit. It has been seen in prior published articles that cell internal short circuit can be triggered by physical intrusion of cell. This paper primarily focusses on simulating the mechanical behavior of cylindrical cell under various crush conditions. In this paper, we will discuss about the trade-off between Computer Aided Engineering (CAE) model fidelity of cylindrical Li-ion cell & usage of such models in full vehicle crash simulations in LS-DYNA®. Proposed method for Cell CAE model is validated against 3 different crush tests conducted. This approach has shown acceptable accuracy for crushability in all 3 test conditions with reduced modeling complexity when compared with prior published work. Proposed Cell CAE model is found to be compatible in use with full vehicle level crash simulations, thus helps in predicting Li-ion cell intrusion accurately during crash simulations of BEVs.</div></div>

show abstract

Cylindrical Li-Ion Cell Crush CAE Capability in Automotive Application

Bhavsar¹,

Kanvinde²,

Seshadri³

et al. 2023

SAE Technical Paper Series

View full text Add to dashboard Cite

show abstract

Simulation Based Validation of Battery Structural Integrity for Mechanical Abuse as per AIS 156

Dandge,

Mahamuni,

Sevda

et al. 2024

SAE Technical Paper Series

View full text Add to dashboard Cite

<div class="section abstract"><div class="htmlview paragraph">Battery is one of the safety critical systems in EV. As the number of EVs increases, battery safety becomes an important task to avoid any mishap during its use, as even small accidents may slow down the adaptation of EVs. Automotive environment being one of the harshest operating environments, it is important to ensure both mechanical and electrical safety of the battery pack.</div><div class="htmlview paragraph">Li-Ion batteries are most popular among traction batteries, due to their high energy density, long life, and fast charging capabilities. But mechanical damage, over temperature, short-circuit, etc. may lead to battery thermal runaway, causing a major accident. Mechanical abuse of battery can be one of the reasons that may lead to the damages mentioned above, eventually causing thermal runaway in batteries. That’s why all major battery safety standards have requirements for vibration and mechanical shock tests.</div><div class="htmlview paragraph">In this paper, we have developed a methodology to evaluate the structural integrity of a battery pack against drop, vibration, and mechanical shock using simulation. AIS 156 requirements for swappable batteries have been considered for load parameters of these simulations, and boundary conditions have been kept similar to physical testing. Implicit and explicit analysis were carried out to simulate drop, vibration, and mechanical shock. Study of stress and displacement of components in this analysis can be used for design optimization, thus saving overall time and cost of development.</div></div>

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Failure of Li-Ion 18650 Cylindrical Cells Subjected to Mechanical Loading and Computational Model Development

Cited by 2 publications

References 37 publications

Cylindrical Li-Ion Cell Crush CAE Capability in Automotive Application

Cylindrical Li-Ion Cell Crush CAE Capability in Automotive Application

Simulation Based Validation of Battery Structural Integrity for Mechanical Abuse as per AIS 156

Contact Info

Product

Resources

About