Quick Answer
Calculate Battery Pack Gravimetric Energy Density Sizing Calculator
Calculator
Result Interpretation
Battery Pack Gravimetric Energy Density Sizing Calculator computes Pack-Level Gravimetric Energy Density in W·h/kg using the defined engineering formula and the input values provided.
Worked Example
Verified calculation
Given:
- Number of Cells in Series = 96
- Nominal Energy per Cell = 85
- Mass per Cell = 1.25
- Number of Cells in Parallel = 4
- Total Thermal Management Mass = 12.6
- Total Structural Enclosure Mass = 24.1
- Total Interconnect Mass = 3.8
Expected Result:
- Pack-Level Gravimetric Energy Density = 62.708933717579
Engineering Interpretation:
Under the given input conditions, the calculated result is: Pack-Level Gravimetric Energy Density = 62.708933717579 W·h/kg.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.
Formula / Method
pack-level gravimetric energy density = (number of cells in series * number of cells in parallel * nominal energy per cell) / (number of cells in series * number of cells in parallel * mass per cell + total interconnect mass + total thermal management mass + total structural enclosure mass)Formula family: formula_battery_pack_level_energy_density_sizing_calculator
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| n_series | Number of Cells in Series | INPUT | Number of Cells in Series |
| n_parallel | Number of Cells in Parallel | INPUT | Number of Cells in Parallel |
| E_cell_Wh | Nominal Energy per Cell | INPUT | Nominal Energy per Cell |
| m_cell_kg | Mass per Cell | INPUT | Mass per Cell |
| m_interconnect_kg | Total Interconnect Mass | INPUT | Total Interconnect Mass |
| m_cooling_kg | Total Thermal Management Mass | INPUT | Total Thermal Management Mass |
| m_structural_kg | Total Structural Enclosure Mass | INPUT | Total Structural Enclosure Mass |
| result | Pack-Level Gravimetric Energy Density | OUTPUT | Pack-Level Gravimetric Energy Density |
Calculation Steps
- Enter the number of cells in series in 1.
- Enter the number of cells in parallel in 1.
- Enter the nominal energy per cell in W·h.
- Enter the mass per cell in kg.
- Enter the total interconnect mass in kg.
- Enter the total thermal management mass in kg.
- Enter the total structural enclosure mass in kg.
- Step 1: Compute pack-level gravimetric energy density.
- Read the pack-level gravimetric energy density (W·h/kg) from the results.
Engineering Summary
Calculate Battery Pack Gravimetric Energy Density Sizing Calculator
Frequently Asked Questions
What does this calculator calculate?
The Battery Pack Gravimetric Energy Density Sizing Calculator estimates Pack-Level Gravimetric Energy Density based on the input parameters you provide
Why is nominal energy per cell important in this calculation?
nominal energy per cell is directly proportional to pack-level gravimetric energy density. When you enter nominal energy per cell in W·h, the calculator uses it in the engineering formula to compute the output
How should I interpret the result pack-level gravimetric energy density?
The calculator outputs pack-level gravimetric energy density in W·h/kg. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Nominal Energy per Cell (W·h), Mass per Cell (kg), Total Interconnect Mass (kg), Total Thermal Management Mass (kg), Total Structural Enclosure Mass (kg). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
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