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Smoothing battery current changes
Posted 24 set 2014, 17:28 GMT-4 Battery Design, Studies & Solvers Version 4.4 0 Replies
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See the model in question here: www.comsol.com/model/capacity-fade-of-a-li-ion-battery-12667
I am trying to increase the number of cycles, and I usually encounter errors in the transition between constant voltage discharge and constant current charge. The abrupt change in current density from ~+0.1 A/m^2 to 10 A/m^2 usually results in a lot of error and a large voltage spike which completely interrupts the charging-discharging cycle determined using the events interface.
As I understand it, the discontinuity of the current input is not something COMSOL likes.
I see that there are smoothing functions available, but I am not sure how to use them in concert with the events system used to determine the current load in this model. Any help would be appreciated.
Hello Corey Zusin
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