Average lithium concentration and hydrostatic stress - Battery degradation

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I trying to obtain average lithium concentration and hydrostatic stress plots from my model.

I have tried several expressions in COMSOL, but without success.

For example, I used: c/Cmax comp1.c avg(c)/Cmax if(p > 0.95, c/Cmax, NaN) if(p > 0.95, -1, c/Cmax)

For the hydrostatic stress, I used (a) Sh/E and also (b) if(p > 0.95, -100, Sh/E), but neither gave results consistent with those in the screenshot of the paper I attached.

Please, could anyone advise me on the correct expressions or additional COMSOL settings that might have been applied in your simulations to obtain these plots?

  1. Regarding the deformed shape scaled by a factor of 5 (below the paper's caption), I applied this scaling in the deformation settings to 5. A screenshot of my setup is included in the attachment. I would to know if this is how to go about the scale factor.

  2. How can I remove the 0.95 crack regions in my average lithium concentration and hydrostatic stress plots?

  3. From the obtained figure from the paper, the same color grade was used throughout the figure for the lithium ion concentration, can someone tell me how I can do this settings in COMSOL?

I would appreciate anyone's kind response. Thanks in anticipation.



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