For this, I want to implement a charge-discharge cycling boundary condition which involves 3 steps.
Step 1: Charge at a constant current (I_cell) upto a maximum cell cut-off voltage (V_max). Step 2: Then, charge at a constant voltage (V_max) until the cell current drops to a small value (I_min). Step 3: Next, discharge at constant current (-I_cell) until the cell voltage drops to a lower cut-off value (V_min). Repeat this sequence of steps for a given number of cycles.
How to model this in comsol?
Hi Puneet,
Cycling the battery with the given protocol might be straightforward if you have the battery design module in Comsol. However, if you are not using the Li-ion battery interface, we will have to talk in detail if you need help on this issue.
Thanks Lubhani for your reply.
I am not using design module. I have to work in COMSOL battery modeling using electrochemical model.
Thanks!
Yes, I meant Comsol's battery model. With that, you would find an option for adding charge/discharge cycling as a boundary condition, and you should be able to directly specify your CC-CV charge and CC discharge protocol. There are options to add rest periods also.
Thanks
I am trying to model behaviour of cylindrical battery with different cooling arrangements. For this i am taking reference from a module available on application library of COMSOL on li battery 3d thermal model, where they have coupled 1-d model with 3-d. There they have not used charge discharge behaviour. I want help in this modeling.
I am trying to do a similar simulation. Please tell me what steps to follow in Comsol to cycle the battery with a special protocol.I want to simulate the battery during a repeated 5-second charge and 5-second discharge. I want to repeat this protocol 50 times and see the temperature change in the battery. Puneet Kumar Nema Lubhani Mishra
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