Battery Isothermal Calorimeter

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Battery Isothermal Calorimeter is a professional instrument developed based on the principle of power compensation isothermal calorimetry for testing the thermal characteristics of various types of lithium batteries, capable of realizing the measurement of the thermal characteristics of lithium batteries' charging and discharging as well as the thermal and physical parameters, providing accurate, stable and reliable basic thermal data for the thermal simulation of batteries, the optimization of the design of the thermal management system, as well as the assessment of the thermal safety performance of batteries.

Application

Isothermal calorimeters are widely used in important industries and fields such as new energy vehicles, energy storage, consumer electronics, and aerospace. These instruments can measure the heat generation characteristics and thermophysical parameters of lithium-ion batteries during charging and discharging, providing accurate, stable, and reliable fundamental thermal data for battery thermal simulation, thermal management system design optimization, and battery thermal safety performance evaluation.

Features

1. In an isothermal environment, it is compatible with the power compensation method and the heat - flow method to measure the heat generated during battery charging and discharging. This not only ensures the accuracy of thermal characteristic measurement for relatively large - sized batteries but also improves the sensitivity of heat measurement for relatively small - sized batteries.

2. It has an instrument calibration mode, which can calibrate the measurement accuracy of charging and discharging thermal behavior parameters under different conditions.

3. It is equipped with a heat capacity measurement mode. By using the comparative method to measure heat capacity, it reduces the operational requirements for heat capacity testing and can accurately measure the heat capacity of batteries at different temperatures.

4. The integrated battery charging and discharging module enables the switching of charging and discharging modes, the setting of constant - current/constant - voltage charging modes, the setting of charging/discharging currents, and the real - time calculation of battery power.

5. Network communication is adopted to achieve remote operation of the instrument and remote data transmission, ensuring the safety of testers.

6. It can simultaneously record voltage, current, and temperature data during the battery charging and discharging process.

7. An optional nitrogen purging module can be selected to ensure the accuracy of low - temperature measurement and effectively suppress the problem of low - temperature condensation.

Parameters

Calorimeter Body	(5~40)°C, <85%RH
Operating Environment	(-40~100)ºC
Oil Bath Temperature Control Range	Isothermal Power Compensation Mode, Isothermal Heat Flow Mode, Specific Heat Capacitance Mode
Experimental Modes	±0.005°C
Temperature Stability	0.001°C
Temperature Resolution	L345mm×W230mm×H100mm
Maximum Cell Size	200W
Maximum Compensated Power	10mW (power compensation mode); 0.2mW (heat flow mode)
Calorimetric Sensitivity	±1% (power compensation mode); ±2% (heat flow mode)
Absorption and Expiration Enthalpy Measurement Accuracy	10mW (Power Compensation Mode); 0.2mW (Heat Flow Mode)
Baseline Noise	Standard with 2 channels
Heating Channels	Standard with 8 channels
Temperature Measurement Channels	RJ45
Instrument Interfaces	(5~25)L/min
Adjustable Gas Flow Rate	AC220V/50Hz
Power Supplied Power Supply	600W
Maximum Power	(-55~200 )°C
Oil Bath	±0.01°C
Setting Temperature Range	0.01°C
Temperature Stability	3kW
Display Resolution	1.5kW@20°C, 1.5kW@0°C, 1kW@-20°C, 0.3kW @-40°C
Heating Power	12×11/16cm
Refrigeration Power	5L
Bath Openings/Size	Serial port
Charging	(5~40)°C, <85%RH
Calorimeter Body	(-40~100)ºC

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