Small Battery Adiabatic Calorimeter
The BAC-90AE Small-Scale Battery Adiabatic Calorimeter is developed based on adiabatic accelerating calorimetry for battery safety testing of small lithium-ion cells. By synchronously acquiring voltage, current, capacity, temperature, pressure, and time data under various abuse conditions, it enables battery and battery-pack R&D and testing teams to perform comprehensive safety performance evaluation.
Test Parameters
Thermal runaway onset temperature | Maximum thermal runaway rate | Adiabatic temperature rise
Applications
Lithium-ion batteries
Features
Specifications
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Features
Simulates an ideal adiabatic environment, enabling direct and more accurate measurement of battery thermal behavior parameters, including thermal runaway onset temperature, maximum thermal runaway rate, and adiabatic temperature rise.
Integrated battery charge–discharge module supports mode switching, constant-current/constant-voltage (CC/CV) charging configuration, charge/discharge current settings, and real-time battery capacity calculation.
Synchronous acquisition of battery voltage, current, temperature, and pressure data for analysis of current/voltage changes during the thermal runaway process.
Compatible with classic adiabatic accelerating calorimeter functions, enabling thermal stability evaluation of battery materials such as electrolyte.
Includes a heat release mode during charge and discharge, accurately reflecting heat generation and heat release rate during battery operation.
Provides two specific heat test modes, constant power and constant rate. A dedicated specific heat test workflow improves specific heat measurement accuracy.
Overpressure and overtemperature alarms with automatic furnace lid lifting for safer and more convenient operation.
Test standards: ASTM E1981-98, SN/T3078.1.
Specifications
Calorimeter Main Unit
| Operating Environment | 5–40°C, <85% RH |
| Temperature Control Range | Ambient to 500°C |
| Temperature Control Modes | Isothermal mode Scanning mode HWS mode Specific heat constant power mode Specific heat constant rate mode Charge–discharge heat release mode |
| Temperature Detection Threshold | 0.005–0.02°C/min |
| Temperature Tracking Rate | 0.005–40°C/min |
| Temperature Display Resolution | 0.001°C |
| Furnace Chamber Size | Diameter 90 mm, depth 110 mm |
| Interface | USB or RJ45 |
| Power Supply | 220 V / 50 Hz |
| Power Consumption | ≤ 3000 W |
Battery Specific Heat Test Module
| Test Method | Comparative method supported |
| Test Modes | Constant power mode Constant rate mode |
| Calibration Blocks | Specific heat calibration blocks provided for periodic calibration |
Control and Data Analysis Software Functions
| Function | Description |
|---|---|
| Data Transmission | All device data transmitted via network for remote operation, ensuring operator safety |
| Data Recording | Multi-dimensional data synchronized recording, supporting thermal runaway mechanism analysis under different abuse conditions |
| Specific Heat Calculation | Supported |
| Thermal Analysis | Thermodynamic and kinetic analysis functions supported |
Pressure Measurement and Gas Collection Module (Optional)
| Sealed Vessel Types | 18650 cell vessel, small battery pressure-sealed vessel |
| Vessel Pressure Rating | Better than 0–10 bar |
| Pressure Measurement Range | 0–20,000 kPa |
| Pressure Resolution | 1 kPa |
| Pressure Measurement Accuracy | ≤ 0.05% |
| Gas Collection Function | Enables collection of off-gas at different stages of battery thermal runaway for composition and combustion/explosion characteristic analysis |
Charge–Discharge Management Module (Optional)
| Charging Voltage | Up to 5 V |
| Charge/Discharge Current | Up to 20 A |
| Test Channels | Up to 8 channels simultaneous measurement |
| Charge–Discharge Modes | Constant voltage and constant current modes |
| Voltage and Current Monitoring | Supported |
| Voltage Measurement Accuracy | ±0.1% FS |
| Current Measurement Accuracy | ±0.1% FS |
| SOC Estimation | Supported |
| Operating Mode Setup and Data Interface | RJ45 |
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