THE EFFECTS OF ELASTIC STIFFENING ON THE EVOLUTION OF THE STRESS FIELD   WITHIN A SPHERICAL ELECTRODE PARTICLE OF LITHIUM-ION BATTERIES

doi:10.1142/S1758825113500403

CORC > 北京大学 > 工学院

	THE EFFECTS OF ELASTIC STIFFENING ON THE EVOLUTION OF THE STRESS FIELD WITHIN A SPHERICAL ELECTRODE PARTICLE OF LITHIUM-ION BATTERIES
	Zhou, Wenbin ; Hao, Feng ; Fang, Daining
刊名	international journal of applied mechanics
	2013
关键词	Lithium-ion battery stress field concentration gradient elastic stiffening DIFFUSION-INDUCED STRESS INTERCALATION CHARGE CELLS SIZE
DOI	10.1142/S1758825113500403
英文摘要	Poor cyclic performance of lithium-ion batteries is calling for efforts to study its capacity attenuation mechanism. The internal stress field produced in the lithium-ion battery during its charging and discharging process is a major factor for its capacity attenuation, research on it appears especially important. We established an electrochemical-mechanical coupling model with the consideration of the influence of elastic stiffening on diffusion for graphite anode materials. The results show that the inner stress field strongly depends on the lithium-ion concentration field, greater concentration gradients lead to greater stresses. The evolution of the stress field is similar to that of the concentration gradient but lags behind it, which shows hysteresis phenomenon. Elastic stiffening can lower the concentration gradient and increase elastic modulus, which are two major factors influencing the inner stress field. We conclude that the latter is more dominant compared to the former, and elastic stiffening acts to increasing the internal stress.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000327851200005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Mechanics; SCI(E); 1; ARTICLE; 4; 5
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/315834]
专题	工学院
推荐引用方式 GB/T 7714	Zhou, Wenbin,Hao, Feng,Fang, Daining. THE EFFECTS OF ELASTIC STIFFENING ON THE EVOLUTION OF THE STRESS FIELD WITHIN A SPHERICAL ELECTRODE PARTICLE OF LITHIUM-ION BATTERIES[J]. international journal of applied mechanics,2013.
APA	Zhou, Wenbin,Hao, Feng,&Fang, Daining.(2013).THE EFFECTS OF ELASTIC STIFFENING ON THE EVOLUTION OF THE STRESS FIELD WITHIN A SPHERICAL ELECTRODE PARTICLE OF LITHIUM-ION BATTERIES.international journal of applied mechanics.
MLA	Zhou, Wenbin,et al."THE EFFECTS OF ELASTIC STIFFENING ON THE EVOLUTION OF THE STRESS FIELD WITHIN A SPHERICAL ELECTRODE PARTICLE OF LITHIUM-ION BATTERIES".international journal of applied mechanics (2013).