Influence of Concentration-Dependent Elastic Modulus and Charge or Discharge Rate on Tensile Stress in Anode

摘要：

　　In this paper,the effects of concentration-dependent elastic modulus and charge or discharge rate on the diffusion induced tensile stress in anode are studied.It has been found that tensile stress would generate due to the non-uniform distribution of lithium ions during lithiation and delithiation process.Applying a faster charge or discharge rate could induce a higher maximum tensile stress.The recent study of composition-dependent modulus for graphite and silicon has showed that neglect of the elastic modulus stiffening or softening would induce an considerably underestimate or overestimation of maximum tensile stress and the concentration-dependent elastic modulus must be considered and the rate especially the discharge rate needs to be appropriately controlled from the tensile point of view.

作者: Y.HE H.HU Y.SONG Z.GUO J.ZHANG

作者单位: Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072,China Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072,China; Shanghai Key Laboratory of Mechanics in Energy and Environment Engineering,Shanghai 200072, China;De

会议类型: 国际会议

会议名称: Sixth International Conference on Nonlinear Mechanics(第六届国际非线性力学会议)(ICNM-VI)

会议地点: 上海

会议语种:英文

页码: 86-89

在线出版日期: 2013-08-01（万方平台首次上网日期，不代表论文的发表时间）