Mock Pack Design

The next stage of the research is to design a mock battery pack based on these specifications.

Battery Pack Requirements:

Requirement

Spec

Requirement

Spec

Nominal Voltage

~130V

Max Voltage

~150V

Capacity

Maximize meeting the requirements for voltage and battery weight.

ASC Battery Weight Regulations:

Cell Type

Max Weight

Cell Type

Max Weight

Li-S

15.00 kg

Li-Ion

20.00 kg

Li-Polymer

20.00 kg

LiFePo4

40.00 kg

The goal of this task is to find a sample cell that is commercially available right now (there is information for purchasing the cell), and use their specs to design a battery pack (#P #S, number of cells in parallel, number of cells in series).

18650 Cell Distributors contains some information on battery suppliers that were looked into in the past.

Choosing Cells to Test MSXIV Li-ion Cell Testing Procedures (for cell selection) some documentation on past tests we did to select a cell (some parts outdated).

After designing the pack, try to calculate the following specs, and outline your design process and the specs under your battery pack page:

  • Total number of cells

  • Nominal capacity [Ah]

  • Minimum capacity [Ah]

  • Nominal voltage [V]

  • Min voltage [V]

  • Max voltage [V]

  • Total volume [m^3]

  • Gravimetric Density [Wh/kg]

  • Volumetric density [Wh/L]

  • Max discharge current [A]

  • Max charge current [A]

    • Standard Charge Rate

    • Max Continuous Discharge Rate

    • Max Peak Charge Rate

  • Number of charge cycles

  • Total cost [USD]