Isothermal Calorimeter for Batteries

The Isothermal Calorimeter for Batteries is designed to measure the heat generated by batteries during charging and discharging under controlled temperature conditions. By combining power compensation and heat-flow measurement methods, the instrument supports thermal characterization of batteries of different sizes, from cylindrical cells to pouch and prismatic cells.
The system features an oil bath with a temperature control range of -40°C to 100°C, integrated battery charge-discharge control, and real-time recording of voltage, current, and temperature. It also supports battery heat capacity measurement and instrument calibration under different test conditions. The calorimeter is suitable for battery research, thermal management development, and performance evaluation in battery laboratories.
Application
(1) Lithium-ion pouch cells
(2) Prismatic battery cells
(3) 18650 cylindrical cells
(4) 21700 cylindrical cells
(5) 26650 cylindrical cells
(6) Battery charging and discharging heat measurement
(7) Battery thermal characterization and heat capacity measurement
(8) Battery thermal management research
(9) Battery formulation and performance development
(10) Comparative thermal performance testing of battery cells
Standards
(1) IEC 62660-1:2018 — Secondary Lithium-Ion Cells for the Propulsion of Electric Road Vehicles — Part 1: Performance Testing
(2) IEC 62660-2:2018 — Secondary Lithium-Ion Cells for the Propulsion of Electric Road Vehicles — Part 2: Reliability and Abuse Testing
(3) ISO 12405-4:2018 — Electrically Propelled Road Vehicles — Test Specification for Lithium-Ion Traction Battery Packs and Systems — Part 4: Performance Testing
(4) GB/T 31486-2024 — Electrical Performance Requirements and Test Methods for Traction Battery of Electric Vehicle
(5) GB 38031-2025 — Electric Vehicles Traction Battery Safety Requirements
Parameters
| Parameter | Specification |
|---|---|
| Product Name | Isothermal Calorimeter for Batteries |
| Measurement Methods | Power compensation and heat-flow methods |
| Enthalpy Measurement Accuracy | Better than ±1% |
| Oil Bath Temperature Range | -40°C to 100°C |
| Temperature Stability | Better than ±0.005°C |
| Battery Types | Pouch, prismatic, 18650, 21700, and 26650 cells |
| Heat Capacity Measurement | Supported |
| Battery Charge-Discharge Control | Integrated module |
| Data Recording | Voltage, current, and temperature |
| Optional Configuration | Nitrogen purging module |
| Power Supply | 220 V, 50 Hz |
Features
(1) Combines power compensation and heat-flow measurement methods.
(2) Supports battery heat capacity measurement.
(3) Provides automatic charging and discharging control.
(4) Records voltage, current, and temperature simultaneously.
(5) Supports remote operation and data transmission.
(6) Offers an optional nitrogen purging module.
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