Modeling and experimental analysis of the thermal and electrochemical characteristics of lithium-ion cells with different electrode thickness

doi:10.1007/s11581-021-04365-7

	Modeling and experimental analysis of the thermal and electrochemical characteristics of lithium-ion cells with different electrode thickness
	An, Zhoujian 1,2; Zhao, Yabing 1,2; Shi, Tianlu 1,2; Zhang, Dong1,2
	2022-02
发表期刊	IONICS
ISSN	0947-7047
卷号	28 期号:2 页码:719-732
摘要	The transportation characteristics of Li+ in the active materials significantly affect the life and overall performance of lithium-ion cells. Analyzing the relationship between electrode thickness and heat/mass-related characteristics is thus very important for lithium-ion cells. The objective of this study was to investigate the effect of electrode thickness on the cell performance by developing a precise one-dimensional electrochemical-thermal coupled model with experimental validation. The thermal and heat-generation characteristics were investigated firstly. Then, the effects of the electrode thickness on the short-term and long-term electrochemical performance of lithium-ion cells were also explored experimentally and numerically from the perspectives of Li+ transport characteristics and discharging behaviors. The results indicated that the electrode thickness had a significant influence on the cell performance. Firstly, the cell with a thicker electrode showed a lower voltage plateau and an earlier stopping of the discharging process compared with the cell with a thinner electrode during a single discharging test; meanwhile, the cell with a thicker electrode presented a faster capacity degradation rate in the long-term cyclic tests. These influences were explained through the Li+ transportation mechanism and the electrochemical-thermal coupled effect.
关键词	Lithium-ion cell Electrode thickness Electrochemical performance Mechanical stress Thermal behavior
DOI	10.1007/s11581-021-04365-7
收录类别	SCIE ; EI
语种	英语
WOS研究方向	Chemistry ; Electrochemistry ; Physics
WOS类目	Chemistry, Physical ; Electrochemistry ; Physics, Condensed Matter
WOS记录号	WOS:000722532700003
出版者	SPRINGER HEIDELBERG
EI入藏号	20214811234353
EI主题词	Degradation
EI分类号	542.4 Lithium and Alloys ; 549.1 Alkali Metals ; 802.2 Chemical Reactions
来源库	WOS
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/150059
专题	能源与动力工程学院
通讯作者	An, Zhoujian
作者单位	1.Lanzhou Univ Technol, Coll Energy & Power Engn, Lanzhou 730050, Peoples R China; 2.Key Lab Fluid Machinery & Syst, Lanzhou 730050, Gansu, Peoples R China
第一作者单位	能源与动力工程学院
通讯作者单位	能源与动力工程学院
第一作者的第一单位	能源与动力工程学院
推荐引用方式 GB/T 7714	An, Zhoujian,Zhao, Yabing,Shi, Tianlu,et al. Modeling and experimental analysis of the thermal and electrochemical characteristics of lithium-ion cells with different electrode thickness[J]. IONICS,2022,28(2):719-732.
APA	An, Zhoujian,Zhao, Yabing,Shi, Tianlu,&Zhang, Dong.(2022).Modeling and experimental analysis of the thermal and electrochemical characteristics of lithium-ion cells with different electrode thickness.IONICS,28(2),719-732.
MLA	An, Zhoujian,et al."Modeling and experimental analysis of the thermal and electrochemical characteristics of lithium-ion cells with different electrode thickness".IONICS 28.2(2022):719-732.

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