Project 1 Mechanical design of battery pack

Battery Pack Design

Cell Specification

Cell Model : ANR26650M1-B

Fig.1.1.

Cell details

Fig.1.2.

For a 18KWh Battery Pack can give a nominal voltage of 300 V & Capacity of 60Ah where Power = V X I, Hence P = 300 X 60 = 18 KWh

Hence we can design the Battery of 20KWh capacity (Considering Losses) Then, 300 V X 67 Ah = 20.1 kwH

Calculating for No. of cells in series and parallel,

No. of cells in series = Nominal Voltage / Cell nominal Voltage = 300 / 3.3 = 91 series cells

No. of cells in Parallel = Nominal Capcity / Cell Nominal Capacity = 67 / 2.5 = 27 Parallel cells

Total No. of cells used = 91 series * 27 Parallel = 2457 cells

Design

1) Cell

Fig.1.3.

2) Battery Holder

Fig.1.4.

3) Metal Strip

Fig.1.5.

4) Assembly

Cells connected in series and parallel to achive the required voltage and 2 Battery holders are used to hold the cells in place and metal strips are used to make the connections from one cell to another.

Isometric View

Top View

To view the model,

https://drive.google.com/drive/folders/1-8cto1lRxJ-RlSEdk86RWHlu9h0F0fWj?usp=sharing