scholarly journals Effects of size and concentration on diffusion-induced stress in lithium-ion batteries

2016 ◽  
Vol 120 (2) ◽  
pp. 025302 ◽  
Author(s):  
Zengsheng Ma ◽  
Xiang Gao ◽  
Yan Wang ◽  
Chunsheng Lu
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Induced Stress ◽  
Diffusion Induced Stress

scholarly journals A Diffusion Model in a Two-Phase Interfacial Zone for Nanoscale Lithium-Ion Battery Materials

2012 ◽  
Author(s):  
Cheng-Kai ChiuHuang ◽  
Hsiao-Ying Shadow Huang
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Electric Vehicle ◽  
Cathode Materials ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Capacity Loss ◽  
Induced Stress ◽  
Stress Formation ◽  
Diffusion Induced Stress

The development of lithium-ion batteries plays an important role to stimulate electric vehicle (EV) and plug-in electric vehicle (PHEV) industries and it is one of many solutions to reduce US oil import dependence. To develop advanced vehicle technologies that use energy more efficiently, retaining the lithium-ion battery capacity is one of major challenges facing by the electrochemical community today. During electrochemical processes, lithium ions diffuse from and insert into nanoscaled cathode materials in which stresses are formed. It is considered that diffusion-induced stress is one of the factors causing electrode material capacity loss and failure. In this study, we present a model which is capable for describing diffusion mechanisms and stress formation in nano-platelike cathode materials, LiFePO4 (Lithium-iron-phosphate). We consider particle size >100 nm in this study since it has been suggested that very small nanoparticles (<100 nm) may not undergo phase separation during fast diffusion. To evaluate diffusion-induced stress accurately, factors such as the diffusivity and phase boundary movements are considered. Our result provides quantitative lithium concentrations inside LiFePO4 nanoparticles. The result could be used for evaluating stress formation and provides potential cues for precursors of capacity loss in lithium-ion batteries. This study contributes to the fundamental understanding of lithium ion diffusion in electrode materials, and results from this model help better electrode materials design in lithium-ion batteries.

scholarly journals Modeling diffusion–induced stress on two-phase lithiation in lithium-ion batteries

2018 ◽  
Vol 71 ◽  
pp. 320-325 ◽  
Author(s):  
Hui Wu ◽  
Zhoucan Xie ◽  
Yan Wang ◽  
Chunsheng Lu ◽  
Zengsheng Ma
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Two Phase ◽  
Induced Stress ◽  
Diffusion Induced Stress

Fracture analysis of bi-layer electrode in lithium-ion battery caused by diffusion-induced stress

2020 ◽  
Vol 235 ◽  
pp. 107189
Author(s):  
Aibing Zhang ◽  
Baolin Wang ◽  
Guangyong Li ◽  
Ji Wang ◽  
Jianke Du
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Fracture Analysis ◽  
Induced Stress ◽  
Diffusion Induced Stress

scholarly journals Analytical Solution for Coupled Diffusion Induced Stress Model for Lithium-Ion Battery

Energies ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1717
Author(s):  
Davide Clerici ◽  
Francesco Mocera ◽  
Aurelio Somà
Keyword(s):  
Analytical Solution ◽  
Hydrostatic Stress ◽  
Active Material ◽  
Coupled Model ◽  
Lithium Ion ◽  
Element Model ◽  
Physical Parameters ◽  
Material Loss ◽  
Induced Stress ◽  
Diffusion Induced Stress

Electric cycling is one of the major damage sources in lithium-ion batteries and extensive work has been produced to understand and to slow down this phenomenon. The damage is related to the insertion and extraction of lithium ions in the active material. These processes cause mechanical stresses which in turn generate crack propagation, material loss and pulverization of the active material. In this work, the principles of diffusion induced stress theory are applied to predict concentration and stress field in the active material particles. Coupled and uncoupled models are derived, depending on whether the effect of hydrostatic stress on concentration is considered or neglected. The analytical solution of the coupled model is proposed in this work, in addition to the analytical solution of the uncoupled model already described in the literature. The analytical solution is a faster and simpler way to deal with the problem which otherwise should be solved in a numerical way with finite difference method or a finite element model. The results of the coupled and uncoupled models for three different state of charge levels are compared assuming the physical parameters of anode and cathode active material. Finally, the effects of tensile and compressive stress are analysed.

Fracture damage of nanowire lithium-ion battery electrode affected by diffusion-induced stress and bending during lithiation

RSC Advances ◽  
2014 ◽  
Vol 4 (40) ◽  
pp. 21072-21078 ◽  
Author(s):  
Bingbing Chen ◽  
Jianqiu Zhou ◽  
Xuming Pang ◽  
Pengfei Wei ◽  
Yunbo Wu ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Volume Changes ◽  
Significant Volume ◽  
Induced Stress ◽  
Lithium Diffusion ◽  
Battery Electrode ◽  
Diffusion Induced Stress ◽  
Fracture Damage

Lithium-ion battery electrode materials generally experience significant volume changes during lithium diffusion during charging and discharging.

scholarly journals Progress on Failure Mechanism of Lithium Ion Battery Caused by Diffusion Induced Stress

2020 ◽  
Vol 35 (10) ◽  
pp. 1071 ◽  
Author(s):  
WANG Yanan ◽  
LI Hua ◽  
WANG Zhengkun ◽  
LI Qingfeng ◽  
LIAN Chen ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Failure Mechanism ◽  
Lithium Ion ◽  
Induced Stress ◽  
Diffusion Induced Stress
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