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How to implement a charge-discharge cycling BC with constraints in Coefficient Form PDE module?
Posted 16 apr 2020, 22:26 GMT-4 Battery Design, Electrochemistry, Equation-Based Modeling Version 5.4 0 Replies
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Hi,
I am trying to build a lithium ion battery model using Coefficient Form PDE equations in Mathematics module, instead of using the in-built Lithium Ion Battery module.
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.
It can easily be done using the in-built charge-discharge cycling boundary condition in the lithium ion battery module. However, I would like to implement the same BC in my model which is based on Mathematics module.
Can someone suggest me the approaches to acheive this?
Thanks in advance! Ganesh
Hello Ganesh Madabattula
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