IMECH-IR  > 非线性力学国家重点实验室
Mechanical integrity of 18650 lithium-ion battery module: Packing density and packing mode
Liu BH; Zhang JJ; Zhang C; Xu J(徐俊)
Source PublicationENGINEERING FAILURE ANALYSIS
2018-09-01
Volume91Pages:315-326
ISSN1350-6307
AbstractThe crash safety of lithium-ion batteries (LIBs) has recently become a hot research topic because of the wide application of LIBs in vehicle. This paper investigates how packing design of battery cells influence the energy density (volume specific) and structural of LIB pack. Firstly, three packing geometrical parameters (one packing angle parameter and two cell number parameters) are extracted to describe the packing modes, packing density and sizes of the module. Then a detailed computational model is established and validated through experiments, with the implementation of a failure criterion for short-circuit. An anisotropic elasto-plastic model is introduced to describe the mechanical response of the cylindrical jellyroll. Based on the computational results, we quantitatively describe the relationship between structural strength and packing parameters of battery module. The deduced empirical equations from the model are validated against numerical examples, and provide a reliable path to predict the mechanical integrity of battery packs with the knowledge of packing information. This developed modeling approach can serve as an efficient tool for safety design of LIB packs.
KeywordLithium-ion Battery Packs Packing Density Packing Mode Finite Element Analysis Mechanical Integrity
DOI10.1016/j.engfailanal.2018.04.041
Indexed BySCI ; EI
Language英语
WOS IDWOS:000434390500025
WOS KeywordSHORT-CIRCUIT ; THERMAL-BEHAVIOR ; STRAIN-RATE ; CELLS ; SIMULATION ; COMPRESSION ; FRACTURE ; SUBJECT ; IMPACT ; DAMAGE
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Mechanical ; Materials Science, Characterization & Testing
Funding OrganizationNational Key Research and Development Program of China(2017YFB0103703) ; State Key Laboratory of Vehicle NVH and Safety Technology(NVHSKL-201610) ; State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology)(KFJJ17-13M) ; China Scholarship Council (CSC)(201706020109)
Classification二类
Ranking1
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77493
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
Liu BH,Zhang JJ,Zhang C,et al. Mechanical integrity of 18650 lithium-ion battery module: Packing density and packing mode[J]. ENGINEERING FAILURE ANALYSIS,2018,91:315-326.
APA Liu BH,Zhang JJ,Zhang C,&徐俊.(2018).Mechanical integrity of 18650 lithium-ion battery module: Packing density and packing mode.ENGINEERING FAILURE ANALYSIS,91,315-326.
MLA Liu BH,et al."Mechanical integrity of 18650 lithium-ion battery module: Packing density and packing mode".ENGINEERING FAILURE ANALYSIS 91(2018):315-326.
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