ECS-GB Temperature Cycling Test Chamber (W500*D500*H600mm, -70°C~+150°C), EGBTCTC

A Temperature Cycling Test Chamber for batteries is a specialized environmental testing system designed to evaluate how cells, modules, or packs withstand thermal fatigue and expansion/contraction stresses.

To meet rigorous standards like UN 38.3 (Test T.2) or IEC 62133, the chamber must handle rapid transitions between extreme thermal states. (1) Temperature Range: Typically -70 °C to +180 °C. (2) Ramp Rates: Up to 15 °C/min or 20 °C/min for accelerated aging and stress screening (ESS). (3) Uniformity: <2 °C to ensure that all batteries in a large batch experience the same thermal stress.

Testing high-energy batteries carries a risk of thermal runaway. Modern chambers for battery research are built to EUCAR Hazard Level 4-6 standards. (1) Pressure Relief Port: A mechanical "blow-out" vent on the top to safely release gases if a cell vents. (2) Gas Detection & Purge: Sensors for H2, CO, and volatile organic compounds (VOCs). If a leak is detected, the PLC triggers a Nitrogen (N2) purge to inert the chamber. (3) Fire Suppression: Integrated CO2 or water-mist systems that can be triggered automatically. (4) Reinforced Hardware: Explosion-proof chains on the door and heavy-duty latches to prevent the door from becoming a projectile

References:

J. R. Belt, et al., The effect of temperature on capacity and power in cycled lithium ion batteries, Journal of Power Sources, 2005, 142, 354-360

D. Ouyang, et al., Impact of high-temperature environment on the optimal cycle rate of lithium-ion battery, Journal of Energy Storage, 2020, 28, 101242