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Mechanical integrity of 18650 lithium-ion battery module: Packing density and packing mode
Liu BH; Zhang JJ; Zhang C; Xu J(徐俊)
发表期刊ENGINEERING FAILURE ANALYSIS
2018-09-01
卷号91页码:315-326
ISSN1350-6307
摘要The 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.
关键词Lithium-ion Battery Packs Packing Density Packing Mode Finite Element Analysis Mechanical Integrity
DOI10.1016/j.engfailanal.2018.04.041
收录类别SCI ; EI
语种英语
WOS记录号WOS:000434390500025
关键词[WOS]SHORT-CIRCUIT ; THERMAL-BEHAVIOR ; STRAIN-RATE ; CELLS ; SIMULATION ; COMPRESSION ; FRACTURE ; SUBJECT ; IMPACT ; DAMAGE
WOS研究方向Engineering ; Materials Science
WOS类目Engineering, Mechanical ; Materials Science, Characterization & Testing
项目资助者National 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)
论文分区二类
力学所作者排名1
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77493
专题非线性力学国家重点实验室
推荐引用方式
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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