IST Li-ion Battery Simulator V-10.0.1

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Open a Project

A project is the container for everything that follows — cells, models, studies, and results all live inside one. A default project is created automatically for new accounts.

New Pack Design

Lock down target KPIs and build the cell-level electrochemical model before opening any solver — this wizard sets up every downstream simulation.

Projects

A project is the container for everything that follows — cells, models, studies, and results all live inside one. A default project is created automatically for new accounts. Upload a saved project (.pro) file below, or open one of your existing projects.

📁 Select Project File (.pro) No file selected

Project Name	Pack Config	Cells	Status	Last Opened
evbike-48v (Default Project)	13S4P — 48.1V 24Ah	4	Active	12/3/2024 9:22 AM
solar-ess-51v	16S6P — 51.2V 36Ah	2	Draft	11/20/2024 2:03 PM

Project Name

Pack Config

Cells

Status

Last Opened

evbike-48v (Default Project)

13S4P — 48.1V 24Ah

4

Active

12/3/2024 9:22 AM

solar-ess-51v

16S6P — 51.2V 36Ah

2

Draft

11/20/2024 2:03 PM

Define Application

Define objectives, chemistry & requirements

Before opening any solver, lock down what the simulation needs to answer.

Project Details

Proposed Model No

Company Name

Contact Person

Design Engineer Name

Application Context

Application Type

Target Duty / Drive Cycle

Target Vehicle / System Mass

Target Range / Runtime

Electrical Targets

Nominal Pack Voltage (V)

Voltage Window (Min – Max)

to

Total Energy Capacity (kWh)

Continuous Discharge Power (kW)

Continuous Charge Power (kW)

Peak Power (kW)

Peak Power Duration (s)

Target Discharge C-Rate

Target Charge C-Rate

Charging Requirements

Max Charge Power / Current

Target Fast-Charge C-Rate

Target Charge Time

Charging Standard(s)

Environmental & Operating Envelope

Ambient Operating Temperature Range

to

Altitude Range

Charging Temperature Range

to

Humidity Rating

Ingress Protection (IP) Target

Vibration/Shock Standard

Thermal Management Target

Allowable Cell-to-Cell ΔT

Max Cell Temperature

Cooling Requirement

Heating Requirement

Life & Safety Targets

Cycle Life Target

Calendar Life Target

Allowable Depth of Discharge

Functional Safety Target

Applicable compliance standards

Mechanical / Packaging Constraints

Available Envelope (L × W × H)

Weight Budget

Mounting Orientation

BMS / Control Scope

Balancing Strategy

Protection Fidelity Needed

SOC/SOH Estimation Fidelity

Target Validation Level

Notes

Additional context or constraints

Output: Simulation requirement specification and target KPI sheet, used to configure every downstream model.

Pack Configuration

Cell-level electrochemical design

Build the cell: geometry, materials, and performance model.

Cell & Pack Design

Select Cell

Pulled live from the Cell database (Database > Cell Library).

Select BMS

Pulled live from the BMS database (Database > BMS Library). Used to check protection/chemistry compatibility.

Output: Nominal capacity, open-circuit voltage, internal resistance, cell mass, and a TBM (thermal battery model) file for downstream CFD linkage. Calculated server-side in PHP; the TBM file is generated by a Python background job.

Pack Configuration

BDS Cell Modeling

Four stages of the BDS cell-modeling workflow, run server-side in pure PHP (inc/bds/*.php — a from-scratch port of the original Python module, no Python runtime required): HPPC-based ECM parameter extraction, EIS-based CNLS fitting, a Newman P2D finite-volume solver, and a joint parameter-identification driver. Click Run, then results appear below once the analysis finishes.

(a) HPPC-Based ECM Parameter Extraction

Pulse Data (CSV: t,V,I — one row per sample, optional header)

Paste a time series spanning at least one full HPPC pulse plus its relaxation period.

Pulse Start (s)

Pulse End (s)

Relaxation Window (s)

Number of RC Pairs

(b) EIS-Based ECM/CNLS Fitting

Impedance Spectrum (CSV: freq_hz,Z_real,Z_imag — one row per point, optional header)

Z_imag follows the usual EIS sign convention (negative = capacitive).

Particle Radius R_p (m) — optional, for D_s estimate

(c) Newman Pseudo-2D (P2D) Finite-Volume Solver

Applied Current I_app (A)

Simulation Time (s)

Timestep dt (s)

Grid Density

D_s Negative (m²/s)

D_s Positive (m²/s)

k Negative (reaction rate)

k Positive (reaction rate)

Bruggeman Exponent

Uses a generic graphite/NMC 18650-class default parameter set (geometry, transport, OCP curves) — override the fields above; everything else uses documented illustrative defaults.

(d) Joint Parameter Identification (Cycler → P2D θ)

Applied Current I_app (A)

Measured Voltage Trace (CSV: t,V_meas — one row per sample)

Grid Density

Fits θ = [D_s,neg, D_s,pos, k_neg, k_pos, Bruggeman] against the measured trace above via identify_p2d_params(), starting from the same defaults as the P2D card. Given the P2D forward model's known instability (see the P2D card's results for details), this is likely to fail on realistic multi-step traces — that failure will be reported clearly rather than silently.

Thermal Analysis

STAR-CCM+ Module — Battery Pack Thermal Simulation

Resolves 3D-equivalent pack thermal behavior in pure PHP (inc/star/*.php — a from-scratch port of STAR-CCM+-Module-Equivalent.py, no Python runtime required): conjugate heat transfer across cell & coolant channel, coolant flow & pressure drop, and multi-physics thermal-runaway propagation for pack safety design.

Battery Design Studio (BDS) supplies the per-cell heat-generation term used as the CHT source (I²R + entropic, from the ECM/P2D modules under Pack Configuration > Advanced Cell Modeling). Amesim would supply a pack-level current/voltage duty cycle as a boundary condition and can receive back a reduced RC-tree thermal network for fast co-simulation — both are external tools outside this app; the heat-generation and duty-cycle fields below are where that hand-off happens, entered directly for now.

(a) Conjugate Heat Transfer — Cell & Coolant Channel

Cell Count (N)

Heat Gen. per Cell (W)

Coolant Mass Flow (kg/s)

Coolant Inlet Temp (K)

Initial Cell/Coolant Temp (K)

Simulation Time (s)

Cell Mass (kg)

Structural Link k (W/K)

Channel Hydraulic Dia. (m)

Channel Segment Length (m)

Coolant properties default to a typical 50/50 glycol-water mix; cell wetted area/cross-section default to the reference module's example geometry.

(b) Coolant Flow & Pressure Drop

Coolant Density (kg/m³)

Coolant Viscosity (Pa·s)

Coolant Conductivity (W/m·K)

Coolant Specific Heat (J/kg·K)

Hydraulic Diameter (m)

Cross-Section Area (m²)

Mass Flow Rate (kg/s)

Channel Length (m)

Minor Loss ΣK

(c) Multi-Physics Thermal-Runaway Propagation

Initial Cell Temperatures (K, comma-separated — one per cell)

A single value runs single-cell kinetics (the N=1 case has no neighbor terms, so it's mathematically identical). Add more values for a multi-cell pack propagation network. Limit 12 cells.

Simulation Time (s)

Conduction Link k (W/K)

Convective Link h (W/K)

Radiative Emissivity

View Factor

Uses a Kim/Hatchard-type 4-reaction Arrhenius abuse-kinetics model (SEI decomposition, negative-electrode/electrolyte, positive-electrode decomposition, electrolyte decomposition) with the reference module's illustrative parameter set — not calibrated against any specific cell's ARC/DSC data. Runaway onset (dT/dt > 10℃/min) is detected per cell; a very sharp runaway onset can outrun this explicit adaptive-step integrator, in which case results up to that point are still shown with a clear note.

Thermal Analysis

Thermal Imaging & Cooling Process Activation — Live Simulation

A lumped-RC thermal network (Bernardi heat generation, inter-module conduction, coolant convection) driving a staged hysteresis cooling controller, rendered as a false-color thermal-camera view that runs continuously below — not a pre-rendered animation. Eight physical modules (2×4 grid) are each a single lumped thermal node; heat flows to neighbors by conduction and to the coolant loop by convection, and a controller watches the pack's hottest module to escalate/de-escalate OFF → LOW → MEDIUM → HIGH with independent turn-on/turn-off thresholds per stage (so it doesn't chatter at a boundary). Runs entirely in the browser (a JavaScript port of the same formulas as inc/thermal_imaging/*.php / the uploaded thermal.py) — simulated time runs faster than real time so the full heating/cooling cycle is visible without waiting.

Controls

Simulated Speed (× real time)

Coolant Temperature (℃)

Hotspot Module

Hotspot R0 Factor

Live Readout

Simulated Time

00:00

Cooling Stage

OFF

Fan/Pump Duty

0%

Load Current

0.0 A

T Max

25.0℃

T Mean

25.0℃

T Min

25.0℃

Box color = live simulated module temperature (thermal-camera IR palette, fixed display span 15–65℃). Dashed outline = the configured hotspot module. Thin lines = the inter-module conduction network.

Batch Simulation Result (server-side PHP, full duration)

Runs the identical physics once, server-side, for the full 1800s reference duration and returns a stage-transition timeline — useful for validating the live view above, or for a quick numeric summary without watching it play out.

BMS Design

Amesim Module — System-Level 0D/1D Simulation

Assembles BDS-exported cell models into a full pack circuit, runs BMS estimation/protection/balancing logic, and drives the pack with vehicle-level load — computed in pure PHP (inc/amesim/*.php — a from-scratch port of Amesim-Module-Equivalent.py, no Python runtime required), fast enough for design-of-experiments sweeps.

Battery Design Studio (BDS) exports the per-cell reduced-order model (OCV(SOC), R0/R1C1/R2C2) that this module replicates N_s×N_p times to build the pack. STAR-CCM+ would supply a reduced thermal RC-network in place of a fixed cell temperature. MAGNET would supply the motor/inverter efficiency map used in the drive-cycle power-flow chain. All three are external tools outside this app; the cell/thermal/motor parameters below are where that hand-off happens, entered directly for now.

(1) Pack Circuit (N_s×N_p)

Series Modules (N_s)

Parallel Cells per Module (N_p)

Mean R0 (Ω)

R0 Mismatch Spread (Ω)

Cell Capacity (Ah)

Initial SOC

Pack Current (A, +discharge)

Simulation Time (s)

(2) BMS Protection & Balancing

Cell Voltages (V, comma-separated)

Cell SOC (0-1, comma-separated, same count as voltages)

Pack Current (A, +discharge)

OV Threshold (V)

UV Threshold (V)

Balance Threshold (ΔSOC)

(3) SOC/SOH Estimation (EKF + RLS + Aging)

True R0 (Ω)

Cell Capacity (Ah)

True Initial SOC

EKF's Initial SOC Guess

Simulation Time (s)

Measurement Noise (mV)

The EKF starts intentionally offset from the true SOC, and the RLS resistance tracker starts intentionally seeded 20% low, to demonstrate convergence.

(4) Full Drive-Cycle Closed-Loop Simulation

Series Modules (N_s)

Parallel Cells per Module (N_p)

Cell Capacity (Ah)

Vehicle Mass (kg)

Rolling Resistance C_rr

Drag Coefficient C_d

Frontal Area (m²)

Drive-Cycle Duration (s)

Uses the reference module's own synthetic drive cycle (a smooth speed profile). BMS protection thresholds and current limits use the same defaults as card (2) above.

Circuit Design

MAGNET Module

Magnetostatic/Eddy-Current FEA on Busbars, Contactors & Current Sensors — 2D magnetostatic and phasor eddy-current field solves for busbar cross-sections (field, Maxwell-stress force, skin/proximity-effect AC loss), a contactor reluctance-network + coenergy force model with armature pull-in dynamics, and Hall-effect/Rogowski/shunt current-sensor transfer functions.

More Circuit Design Tools

Busbar routing, contactor/fuse sizing, and harness layout tools beyond the MAGNET FEA module will live here. Not yet built out.

HV/LV Electrical Circuit Diagram

Module & Pack, Input to Output — 2D Schematic & 3D Layout Generator. Builds the HV power chain (modules → service disconnect → contactor/precharge → fuse → current sensor → DC bus) and the parallel HVIL loop & LV BMS network, rendered as a 2D single-line schematic and a live, rotatable 3D layout.

Circuit Design

MAGNET Module — Magnetostatic/Eddy-Current FEA on Busbars, Contactors & Current Sensors

Pack-level electrical hardware EM analysis, computed in pure PHP (inc/magnet/*.php — a from-scratch port of circuit.py, no Python runtime required): busbar magnetostatic field/force, eddy-current skin/proximity-effect AC loss, contactor solenoid actuation, and current-sensor models.

Amesim would supply the pack current profile (drive-cycle I_pack(t), fault/short-circuit transients) as the excitation for this analysis. STAR-CCM+ would receive the I²R Joule-loss distributions computed here as volumetric heat sources for conjugate heat transfer, and could return busbar temperature back for a resistivity update. Both are external tools outside this app; the current/frequency fields below are where that hand-off happens, entered directly for now.

(a) Busbar Magnetostatic FEA — Field & Force

Busbar Width (mm)

Busbar Height (mm)

Separation (mm)

Current (A)

(b) Eddy-Current / Skin Effect — AC Loss

Busbar Width (mm)

Busbar Height (mm)

Frequency (Hz)

Conductivity (S/m)

Current (A)

(c) Contactor Solenoid — Reluctance Network & Pull-In Dynamics

Coil Turns

Core Area (mm²)

Gap Area (mm²)

Core Length (mm)

Core Relative Permeability

Armature Mass (g)

Spring Constant (N/m)

Initial Gap (mm)

Damping (N·s/m)

Hold Current (A)

Simulation Time (ms)

A large enough hold current relative to the spring constant will snap the armature fully closed (gap → 0) — this is normal contactor closing behavior, not an error; the closed-form force law isn't clamped at contact, so times after that point aren't physically meaningful.

(d) Current Sensors — Hall (Open/Closed-Loop), Rogowski, Shunt

Primary Current (A)

dI/dt (A/s)

Hall OL Sensitivity S (V/T)

Hall OL Core μ_r

Hall OL Core Length (mm)

Hall CL Secondary Turns

Hall CL Measure R (Ω)

Shunt R (Ω)

Rogowski Coil Turns

Rogowski Loop Area (mm²)

Rogowski Mean Length (mm)

Circuit Design

HV/LV Electrical Circuit Diagram — Module & Pack, Input to Output

Builds the HV power chain and LV BMS/control network for a battery pack — from cell modules (input) through contactors, fuse, current sensor, to the DC bus output (output) — computed in pure PHP (inc/hvlv/*.php — a from-scratch port of hv-lv.py, verified byte-for-byte against the Python original's binary STL output). Rendered two ways: a 2D single-line schematic (SVG) and a live, rotatable 3D layout (STL, parsed and drawn in this page with a small hand-written binary-STL reader — no external CAD viewer plugin).

Path: Input (cell modules) → Service Disconnect → [+] Contactor (∥ Precharge) → Fuse → Current Sensor → DC Bus Output → [−] Contactor → back to Input. A parallel HVIL sense loop and a separate LV BMS network (master, per-module slaves, coil drivers, isolation monitor) are modeled alongside the same component set.

Pack Configuration

Number of Modules

Series Cells per Module

Parallel Cells per Module

Cell Nominal Voltage (V)

Cell Capacity (Ah)

Module Grid Columns

2D Single-Line Schematic

Input (cell modules) → Service Disconnect → [+] Contactor (∥ Precharge) → Fuse → Current Sensor → DC Bus Output → [−] Contactor → back to Input, rendered directly from the same topology used for the 3D layout below. Solid heavy lines are the HV power path, dashed heavy-spaced lines are the HVIL loop, and light dashed/solid lines are the LV signal/power network.

3D Layout — Live View

Rendered from the same topology's real 3D component positions (module footprints, busbar runs, contactor/fuse/sensor boxes, HVIL wire, LV harness), exported as STL and parsed live in this page. Drag to rotate, scroll to zoom.

Reports

Complete System Simulation & Report

Runs one consistent pack configuration through every analysis module built in this app — Cell & Pack electrochemical model, HPPC parameter extraction, conjugate heat transfer, full drive-cycle closed loop, busbar EM FEA, HV/LV circuit topology & sizing, and thermal-imaging cooling simulation — then assembles the results into one downloadable/printable report. Each stage calls the same server-side endpoint already used by its own screen elsewhere in the app; nothing here is a separate implementation.

Pack Configuration (shared across all stages)

Number of Modules

Series Cells per Module

Parallel Cells per Module

Cell (for electrochemical model)

BMS

Coolant Temperature (℃)

Progress

Housing

Battery Pack Housing

Vehicle-Space-Driven, 3D-Printable Module & Pack Housing Design Generator — the parametric mechanical housing layer that sits underneath the rest of the Simcenter-style workflow (BDS cell models, STAR-CCM+ thermal, Amesim system/BMS, MAGNET electromagnetics). Derives every housing dimension directly from the actual available vehicle package space and exports print-ready STL meshes.

Housing

Battery Pack Housing — Vehicle-Space-Driven, 3D-Printable Module & Pack Housing Design Generator

This screen is set up and reachable from the Housing menu, but the actual geometry generator hasn't been built yet — the source file (housing.py) referenced for this conversion wasn't attached to that request, so there's nothing yet to port. Please attach housing.py and I'll convert it the same way as the BDS/STAR-CCM+/Amesim/thermal-imaging modules: a verified PHP port (mesh primitives, the VehiclePackageEnvelope/cell/module dataclasses, the pack layout calculator, module & pack housing generators, printability checks) plus an STL export endpoint, cross-checked against the Python original at matched inputs before anything ships.

Database

Cell

BMS

BTMS

M-PCB

Busbar

ColdPlate

Other Parts

×

🔍 Search

Add New

Name

Chemistry

Capacity (Ah)

Voltage (V)

Status

Cycle Life

Max C-Rate

Last Modified

Summary

Discharge Curve

Safety Data

Sourcing

Database

Cell

BMS

BTMS

M-PCB

Busbar

ColdPlate

Other Parts

×

🔍 Search

Add New

Name

Manufacturer

Category

Cell Chemistry

Max Series Cells

Status

Last Modified

Summary

Protection

Balancing & Sensing

Comms & Switching

Power & Diagnostics

Compliance & Sourcing

Database

Cell

BMS

BTMS

M-PCB

Busbar

ColdPlate

Other Parts

×

🔍 Search

Add New

Name

Cooling Type

Coolant

Design Target ΔT

Status

Last Modified

Summary

Thermal Performance

Material Properties

Heating

Fluid & Electrical

Sensors & Sourcing

Database

Cell

BMS

BTMS

M-PCB

Busbar

ColdPlate

Other Parts

×

🔍 Search

Add New

Name

Manufacturer

Category

Rating

Status

Last Modified

Summary

Voltage & Current

Isolation & Safety

I/O & Switching

Balancing & Thermal

Comms & Diagnostics

Power & Mechanical

Diagnostics & Sourcing

Database

Cell

BMS

BTMS

M-PCB

Busbar

ColdPlate

Other Parts

×

🔍 Search

Add New

Name

Manufacturer

Category

Conductor Material

Status

Last Modified

Summary

Electrical Properties

Current Ratings

Thermal Performance

Insulation & Dimensions

Sourcing

Database

Cell

BMS

BTMS

M-PCB

Busbar

ColdPlate

Other Parts

×

🔍 Search

Add New

Name	Category	Rating	Vendor	Status	Last Modified
ColdPlate-Al-400x200	Thermal	2.5 kW	Boyd	Active	11/29/2024 4:20 PM

Name

Category

Rating

Vendor

Status

Last Modified

ColdPlate-Al-400x200

Thermal

2.5 kW

Boyd

Active

11/29/2024 4:20 PM

Summary

Ratings

Compliance

Sourcing

Database

Cell

BMS

BTMS

M-PCB

Busbar

ColdPlate

Other Parts

×

🔍 Search

Add New

Name	Category	Rating	Vendor	Status	Last Modified
Fuse-MEGA-150A	Protection	150A / 58V	Littelfuse	Active	11/18/2024 2:47 PM
Contactor-EV200	Switching	500A	TE Connectivity	Draft	11/10/2024 8:30 AM

Name

Category

Rating

Vendor

Status

Last Modified

Fuse-MEGA-150A

Protection

150A / 58V

Littelfuse

Active

11/18/2024 2:47 PM

Contactor-EV200

Switching

500A

TE Connectivity

Draft

11/10/2024 8:30 AM

Summary

Ratings

Compliance

Sourcing

New Part Specification

The part specification is the blueprint for a discrete pack-level part: its ratings, compliance, and sourcing. Every BOM and pack design references one from the Master PCB, Busbar, ColdPlate, or Other Parts library.

General Information

Name

Category

Rating

Status

Ratings

Voltage Rating

Current Rating

Power Rating / Resistance

Compliance

Certifications

IP Rating

Operating Temp Range (℃)

to

Sourcing

Vendor

Part Number

Lead Time

Unit Cost

Component datasheet created and saved as component-datasheet.dat (JSON) in the data folder.

New Cell Specification

The cell datasheet is the electrochemical and mechanical blueprint for a single cell — its ratings, geometry, and safety limits. Every pack design and simulation in the Cell Library references one of these records.

General Information

Name

Manufacturer

Model No.

Chemistry

Product Classification

Application

Status

Physical & KPI Targets

Shape

Cylindrical Diameter (mm)

Cylindrical Height (mm)

Prismatic Height (mm)

Prismatic Width (mm)

Prismatic Thickness (mm)

Weight (g)

Electrical KPIs

Nominal Voltage (V)

Nominal Capacity (mAh)

Rated Charge C-rate

Rated Discharge C-rate

Std Charge C-rate

Std Discharge C-rate

Test Temp Range (℃)

to

Charge Parameters

Rated Charge Current (mA)

Rated Charge Voltage (V)

Rated Charge Cutoff Current (mA)

Charging Time (h)

Std Charge Current (mA)

Std Charge Voltage (V)

Std Charge Cutoff Current (mA)

Max Charge Voltage (V)

Max Charge Current (mA)

Discharge Parameters

Rated Discharge Current (mA)

Rated Discharge Cutoff Voltage (V)

Std Discharge Current (mA)

Std Discharge Cutoff Voltage (V)

Max Discharge Voltage (V)

Max Discharge Current (A)

Discharge Temp Range (℃)

to

Safety Limits

Stop Charge Voltage (V)

Stop Discharge Voltage (V)

Max Surface Temp (℃)

Charge Temp Range (℃)

to

AC Impedance (mΩ)

DC Impedance (mΩ)

Cycle Life Rating (cycles)

Sourcing

Lead Time

Unit Cost

Cell datasheet created and saved as cell-datasheet.dat (JSON) in the data folder.

New BMS Specification

The BMS datasheet is the electrical, protection, and communications blueprint for a battery management system module. Every pack design and simulation in the BMS Library references one of these records.

General Information

Name

Manufacturer

Model / Part Number

Category

Status

Cell Compatibility

Supporting Cell Chemistry

Supporting Cell Format

Number of Series Cells Supported

Voltage Measurement

Cell Voltage Measurement Range

Cell Voltage Measurement Accuracy

Voltage ADC Resolution & Sample Rate

Pack/Total Voltage Range & Accuracy

Current Measurement

Current Sense Range (Charge & Discharge)

Current Measurement Accuracy

Shunt/Sense-Resistor Requirement

Current ADC Sampling Rate

Protection Thresholds

Overvoltage Protection (OVP) Trip & Release

Undervoltage Protection (UVP) Trip & Release

Overcurrent Protection – Charge (OCP-C)

Overcurrent Protection – Discharge (OCP-D)

Short-Circuit Protection (SCP) Trip & Response

Overtemperature / Undertemperature Protection

Protection Delay/Debounce Time per Fault

Fault Recovery/Reset Behavior

Balancing

Balancing Method

Balancing Current per Cell

Balancing Start Threshold / Target Imbalance

Max Simultaneous Balancing Channels

Temperature Sensing

Number of NTC/Temperature Input Channels

Supported NTC Thermistor Type/Beta Value

IC/Module Operating Temperature Range

Communication

Host Communication Protocol(s)

Daisy-Chain/Stack Communication Interface

Isolation Type on Comms Lines

Data/Register Map for SOC, SOH, Fault Flags

Switching & Contactor Control

Charge-FET / Discharge-FET Gate Drive Spec

Max Switch Current Rating Supported

Contactor/Relay Drive Output Specs

Pre-Charge Control Logic

Power Consumption

IC/Module Supply Voltage Range

Active Mode Current Consumption

Sleep/Standby/Shutdown Current Consumption

Wake-Up Sources and Wake-Up Time

SOC/SOH & Diagnostics

Coulomb Counter Resolution & Accuracy

SOC Estimation Algorithm Accuracy Claim

SOH Tracking Capability

Isolation/Insulation Resistance Monitoring Range

Cell Open-Wire / Sense-Line Fault Detection

ADC Self-Test / Redundant Measurement Path

Compliance & Mechanical

Functional Safety Rating

Relevant Certifications

Package Type and Pin Count

PCB Module Dimensions and Connector Type

Number of Boards Needed to Stack

Sourcing

Lead Time

Unit Cost

BMS datasheet created and saved as bms-datasheet.dat (JSON) in the data folder.

New BTMS Specification

The BTMS datasheet is the thermal, material, and fluid/electrical blueprint for a battery thermal management component. Every pack design and simulation in the BTM Library references one of these records.

General Information

Name

Cooling Type

Coolant

Status

Design Target

Design Target ΔT

Operating Temperature Range

to

Thermal Performance

Thermal Conductivity

Effective Thermal Conductivity

Max Heat Dissipation / Heat Transport Capacity

Cooling Capacity

Coefficient of Performance (COP)

Latent Heat of Fusion

Material Properties

Hardness

Dielectric Strength / Breakdown Voltage

Material

Heating

Heating Power

Heater Type

Max Surface Temperature

Electrical

Operating Voltage

Operating Current

Power Consumption

Fluid

Max Flow Rate

Operating Pressure Rating

Inlet/Outlet Size

Mounting

Sensors

Coolant Inlet/Outlet Temperature Sensor Accuracy

Coolant Pressure Sensor Range & Accuracy

Coolant Flow Sensor Range & Accuracy

Sourcing

Manufacturer

Lead Time

Unit Cost

BTMS datasheet created and saved as btms-datasheet.dat (JSON) in the data folder.

New M-PCB Specification

The Master PCB datasheet is the electrical, isolation, I/O, and functional-safety blueprint for a master BMS carrier/controller board. Every pack design and simulation in the M-PCB Library references one of these records.

General Information

Name

Manufacturer

Part Number

Category

Rating

Status

Board Basics

Cell Voltage Measurement Range

Current Rating

Layer Count

Voltage Measurement

Cell Voltage Measurement Accuracy

Cell Voltage Reporting Resolution

Cell Voltage Sampling Rate

Cells Supported per Unit (Series)

Max Cells with Remote Expansion Modules

Total Pack Voltage Range

Current Measurement

Current Sensor Type

Current Sensor Sampling Rate

Available Current Sensor Ranges

Current Measurement Accuracy

Isolation

Isolation, Cell Tap #1 to Chassis/Input Supply

Isolation, Cell Taps #2+ to Chassis/Input Supply

Isolation Between Cell Tap Connectors

Safety

Integrated Isolation/Ground-Fault Detection

Dedicated HV Interlock Loop (HVIL) Input

Pyrotechnic Disconnect Trigger Output

Digital I/O

Digital Outputs for Charge/Discharge Enable

Digital Output for Charger Control

Programmable Multi-Purpose Outputs

Direct Contactor Drive Capability

Digital Output Continuous Sink Current

Digital Output Switching Voltage (Open Drain)

Balancing

Balancing Method

Balancing Current

Thermal Sensing

Onboard Thermistor Inputs

Max Thermistors with Expansion Modules

Thermistor Accuracy

Communication

CAN Interfaces

CAN Bus Speed Options

OBD-II Protocol Support

Other Protocol Compatibility

Charger Protocol Support

Functional Safety

ASIL Rating (ISO 26262)

Diagnostic Trouble Codes (DTCs)

OBD2 Diagnostic Protocol Support

FMEDA / FIT Failure Rate Data

Secure Boot / HSM / Secure OTA

Power Supply

Input Supply Voltage Range

Active-Mode Power Consumption

Sleep-Mode Current Draw

Redundant Power Supplies

Load-Dump Transient Immunity

Cold-Crank Brownout Immunity

Mechanical & Environmental

Operating Temperature Range

Dimensions & Weight (24–72 Cell Model)

Dimensions & Weight (84–108 Cell Model)

Dimensions & Weight (120–180 Cell Model)

Vibration/Shock Qualification

Ingress Protection (IP) Rating

Compliance

EMC Directive Compliance

Regulatory Compliance

Certifications

Battery Diagnostics

SOC Estimation

Pack/Cell Internal Resistance Calculation

Pack Health Tracking

SOC/SOH Accuracy Claim

Field-Programmable / Upgradeable Firmware

Data Logging Capability

Sourcing

Lead Time

Unit Cost

M-PCB datasheet created and saved as mpcb-datasheet.dat (JSON) in the data folder.

New Busbar Specification

The busbar datasheet is the electrical, current-carrying, thermal, and insulation blueprint for a rigid conductor interconnect. Every pack design and simulation in the Busbar Library references one of these records.

General Information

Name

Manufacturer

Part Number

Category

Status

Ratings Overview

Voltage Rating

Conductor Material

Cross-Sectional Area

Conductivity & Resistance

Electrical Conductivity (%IACS)

DC Resistance per Unit Length

AC Resistance / Skin-Effect Factor

Volume Resistivity (20℃)

Temperature Coefficient of Resistance

Contact & Surface

Contact Resistance at Joints/Connections

Plating/Surface Finish

Continuous Current

Rated Continuous Current (Free Air, 30℃ Rise)

Rated Continuous Current (Enclosed)

Allowable Current Density

Current Density Rating

Short-Time & Fault Withstand

Short-Time Withstand Current (1s RMS)

Peak Withstand Current (Asymmetrical)

Electrodynamic Force Withstand

Fusing Current / Melting Current (I²t Rating)

Thermal

Temperature Rise at Rated Current

Maximum Continuous Operating Temperature

Thermal Conductivity

Operating Temperature Range (Ambient)

Insulation

Insulation/Sleeve Material Rating

Insulation Material Type

Voltage Rating / Insulation Class

Dielectric Withstand Voltage

Insulation Thickness

Dimensions & Skin Effect

Cross-Section Width

Cross-Section Thickness

Skin Depth at Reference Frequency

Sourcing

Lead Time

Unit Cost

Busbar datasheet created and saved as busbar-datasheet.dat (JSON) in the data folder.

Open a Project

New Pack Design

Project Details

Application Context

Electrical Targets

Charging Requirements

Environmental & Operating Envelope

Thermal Management Target

Life & Safety Targets

Mechanical / Packaging Constraints

BMS / Control Scope

Notes

Cell & Pack Design

(a) HPPC-Based ECM Parameter Extraction

(b) EIS-Based ECM/CNLS Fitting

(c) Newman Pseudo-2D (P2D) Finite-Volume Solver

(d) Joint Parameter Identification (Cycler → P2D θ)

(a) Conjugate Heat Transfer — Cell & Coolant Channel

(b) Coolant Flow & Pressure Drop

(c) Multi-Physics Thermal-Runaway Propagation

Controls

Live Readout

Batch Simulation Result (server-side PHP, full duration)

(1) Pack Circuit (Ns×Np)

(2) BMS Protection & Balancing

(3) SOC/SOH Estimation (EKF + RLS + Aging)

(4) Full Drive-Cycle Closed-Loop Simulation

MAGNET Module

More Circuit Design Tools

HV/LV Electrical Circuit Diagram

(a) Busbar Magnetostatic FEA — Field & Force

(b) Eddy-Current / Skin Effect — AC Loss

(c) Contactor Solenoid — Reluctance Network & Pull-In Dynamics

(d) Current Sensors — Hall (Open/Closed-Loop), Rogowski, Shunt

Pack Configuration

2D Single-Line Schematic

3D Layout — Live View

Pack Configuration (shared across all stages)

Progress

Report

Battery Pack Housing

General Information

Ratings

Compliance

Sourcing

General Information

Physical & KPI Targets

Electrical KPIs

Charge Parameters

Discharge Parameters

Safety Limits

Sourcing

General Information

Cell Compatibility

Voltage Measurement

Current Measurement

Protection Thresholds

Balancing

Temperature Sensing

Communication

Switching & Contactor Control

Power Consumption

SOC/SOH & Diagnostics

Compliance & Mechanical

Sourcing

General Information

Design Target

Thermal Performance

Material Properties

Heating

Electrical

Fluid

Sensors

Sourcing

General Information

Board Basics

Voltage Measurement

Current Measurement

Isolation

Safety

(1) Pack Circuit (N_s×N_p)