Li-ion Shepherd model

this model includes an updated Li-ion battery model based on the Shepherd model

this model includes an updated Li-ion battery model based on the Shepherd model, the included battery has the following parameters:

E0 is the open circuit battery voltage (26.0246 V)

Q is the battery’s nominal capacity (30 Ah),

K is a polarization constant (0.0045161)

A denotes the exponential zone amplitude (2.0154 V);

B denotes the exponential zone time constant inverse in the exponential zone (2.0354 Ah−1);

R is the internal resistance (0.008 Ω)

tau the constant time (30)