Phase Field Simulation of Lithium Ion Diffusion in Solid Electrolyte Interface

2015 ◽  
Keyword(s):  
Solid Electrolyte ◽  
Phase Field ◽  
Lithium Ion ◽  
Solid Electrolyte Interface ◽  
Ion Diffusion ◽  
Phase Field Simulation ◽  
Field Simulation ◽  
Electrolyte Interface ◽  
Lithium Ion Diffusion

Lithium-ion Diffusion in Solid Electrolyte Interface (SEI) Predicted by Phase Field Model

2015 ◽  
Vol 1753 ◽  
Author(s):  
Pengjian Guan ◽  
Lin Liu
Keyword(s):  
Solid Electrolyte ◽  
Phase Field ◽  
Diffusion Coefficients ◽  
Field Model ◽  
Phase Field Model ◽  
Lithium Ion ◽  
Morphology Evolution ◽  
Ion Diffusion ◽  
Sei Layer ◽  
Lithium Ion Diffusion

ABSTRACTSolid electrolyte interface (SEI) layer plays a key role in lithium-ion batteries’ degradation research. However, SEI layer microstructure prediction still needs further investigation, especially the lithium-ion diffusion in SEI layer considering its morphology evolution during the growth of SEI. Due to the unique advantage of avoiding explicitly tracking the interfaces with sharp composition gradients, a phase field model is developed to simulate the SEI formation and its morphology evolution that is regarded as a solidification process. Fick’s law and mass balance are applied to investigate lithium-ion concentration distribution and diffusion coefficients of different SEI layers (i.e., compact and porous SEI layers) predicted by the developed phase field model. The simulation results show lithium-ion diffusion coefficients between 298K and 318K are 1.34-1.87(10-16) m2/s and 1.73-2.18(10-12) m2/s for compact SEI and porous SEI layer, respectively. The developed model has great potential to be extended to three dimensional spaces for SEI layer spatial growth investigation and other interfaces with complex morphology evolution.

A Phase Field Model of Solid Electrolyte Interface Formation in Lithium-ion Batteries

2012 ◽  
Vol 1440 ◽  
Author(s):  
Jie Deng ◽  
Gregory J. Wagner ◽  
Richard P. Muller
Keyword(s):  
Solid Electrolyte ◽  
Lithium Ion Batteries ◽  
Phase Field ◽  
Field Model ◽  
Phase Field Model ◽  
Lithium Ion ◽  
Interface Layer ◽  
Solid Electrolyte Interface ◽  
Anode Surface ◽  
Electrolyte Interface

ABSTRACTA phase field model is developed to investigate the formation of a solid electrolyte interface layer on the anode surface in lithium-ion batteries. Numerical results show that the growth of solid electrolyte interface exhibits power-law scaling with respect to time, and the growth rate depends on various factors such as temperature, diffusivity of electrons, and rates of electrochemical reactions.

scholarly journals Formation of a solid electrolyte interface on single wall carbon nanotube electrodes in lithium ion batteries

TANSO ◽  
2009 ◽  
Vol 2009 (240) ◽  
pp. 221-225
Author(s):  
Hisatoshi Koshikawa ◽  
Hiroatsu Todoriki ◽  
Atsushi Kondo ◽  
Yoshiyuki Hattori ◽  
Fujio Okino ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Solid Electrolyte ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Solid Electrolyte Interface ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon ◽  
Electrolyte Interface

Designing superior solid electrolyte interfaces on silicon anodes for high-performance lithium-ion batteries

Nanoscale ◽  
2019 ◽  
Vol 11 (41) ◽  
pp. 19086-19104 ◽  
Author(s):  
Yaguang Zhang ◽  
Ning Du ◽  
Deren Yang
Keyword(s):  
Solid Electrolyte ◽  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Anode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Passivation Layer ◽  
Solid Electrolyte Interface ◽  
Silicon Anodes ◽  
Electrolyte Interface

The solid electrolyte interface (SEI) is a passivation layer formed on the surface of lithium-ion battery (LIB) anode materials produced by electrolyte decomposition.

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