This tool provides a lumped-parameter model for estimating the internal absolute pressure of a battery pack during a thermal runaway event, and assesses when a Pressure Relief Valve (PRV) opens.
Key features:
⚠ DEMO DATA NOTICE: The built-in cell and valve databases contain fabricated demonstration data only. They are not representative of any real product.
Governing Equation (lumped parameter, ideal gas):
dP/dt = (P/T)·(dT/dt) + (R·T/V)·(dn/dt) − (P·Q_out)/V
where P = absolute pressure (Pa), T = temperature (K), V = pack void volume (m³), n = total gas moles (mol), Q_out = volumetric flow through valve (m³/s), R = 8.314 J/(mol·K).
Valve Models:
Numerical Method: an implicit solver for stiff ODE systems, run at tight error tolerances.
| NO. | Cell Model | Manufacturer | Capacity (Ah) | Chemistry | Shape | Venting Duration (s) | Total Gas Mole | Data Source |
|---|
| NO. | Valve Model | Manufacturer | Valve Type | Opening Pressure (kPa) | Data Source |
|---|
This tool does not store any user-supplied input data or simulation results on any server. All computation is performed transiently; results are returned in the API response and are not retained.
Your API key is stored locally in your browser's localStorage and is transmitted only to the API endpoint you configure. It is never sent to any third party.
Disclaimer: Simulation results are provided for engineering reference only and may differ significantly from actual measurements. The author accepts no liability for decisions made based on this tool's output.