MyJournals Home  

RSS FeedsEnergies, Vol. 13, Pages 1717: Analytical Solution for Coupled Diffusion Induced Stress Model for Lithium-Ion Battery (Energies)

 
 

4 april 2020 17:00:18

 
Energies, Vol. 13, Pages 1717: Analytical Solution for Coupled Diffusion Induced Stress Model for Lithium-Ion Battery (Energies)
 


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.


 
72 viewsCategory: Biophysics, Biotechnology, Physics
 
Energies, Vol. 13, Pages 1716: GPIO-Based Nonlinear Predictive Control for Flux-Weakening Current Control of the IPMSM Servo System (Energies)
Energies, Vol. 13, Pages 1715: Performance Evaluation of Flat Plate and Vacuum Tube Solar Collectors by Applying a MWCNT/Fe3O4 Binary Nanofluid (Energies)
 
 
blog comments powered by Disqus


MyJournals.org
The latest issues of all your favorite science journals on one page

Username:
Password:

Register | Retrieve

Search:

Physics


Copyright © 2008 - 2020 Indigonet Services B.V.. Contact: Tim Hulsen. Read here our privacy notice.
Other websites of Indigonet Services B.V.: Nieuws Vacatures News Tweets Nachrichten