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How to calculate the current density in 3D lithium battery?

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Dear professor, I am doing a modeling about lithium ions battery,3D,in the case library "Heterogeneous Lithium-Ion Battery", a current density is applied to the current collector but don't say the formula to calculate it. I have read some papers the formula have diffent expression so i want to ask can anyone know how to calculate it and tell me the formula to calculate it? The model i give a photo below.



0 Replies Last Post 5 mag 2021, 10:20 GMT-4
COMSOL Moderator

Hello 玉强 李

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