Project 2

Given :

Battery resistance = 2 mohm

The entropic heat factor is 2.

From the given excel we can find that,

Max battery current = -0.896 A at 120 secs

Maximum heat generated in the battery pack (Q)

= Q joules + Q entropic

Q joules = Imax ^2 *R*t

= 0.1926

Q entropic = 2

Therefore the maximum heat generated in the battery pack = 0.1926 + 2 = 2.1926 J

The simulation is built accordingly for the battery pack and the output of the SOC of the battery at 208 seconds of the battery operation is as follows:

The following parameters are considered as follows:

• Nominal voltage - 3.7 V
• Rated capacity - 2.6 Ah
• Total simulation time - 208 secs