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Modeling the Lithium Ion Battery
Posted 23 nov. 2014, 12:28 UTC−5 Battery Design Version 4.4 0 Replies
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I am working on modeling a lithium-ion battery based on the Kandler paper attached here. I have successfully inputted the governing equations into COMSOL with one exception: the boundary conditions for the charge, solid phase equation on page 3 of the Kandler paper. The model runs when a Dirichlet boundary condition is used for the solid phase equations, which sets the potential of our modeled electrodes to zero at their respective boundaries. This is incorrect since I am trying to set the derivative of these boundaries equal to zero (the zero flux boundary condition). However, the only way I have been able to eliminate the error messages is with these Dirichlet boundary conditions. How can I satisfy this condition with our model?
We have labeled the corresponding partial differential equations as "psn" and "psp" in our COMSOL model. As you can clearly see, I have implemented a Dirichlet boundary condition for both equations. The equation was taken from Table 1 on page 3 of the attached Kandler pdf.
Any help would be greatly appreciated.
Thank you for your time.
Regards,
Adib Samin
The Ohio State University
samin.2@osu.edu
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Hello Adib Samin
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