Hello,
Currently Typhoon HIL has two components which you may find useful.
1. The battery component focused on easy parametrization and representation of multiple battery types. However, if you want to model each cell individually you could use the second option.
2. The battery cell component which features flexible parameterization of a wide array of properties. You could then combine multiple cells to model your battery.
You can check if these components are helpful in the documentation I linked above.
Best regards.