The test results showed that under 100% SOC and densely packed extreme conditions, JDEnergy’s eBlock-418A successfully contained thermal runaway within a single cabinet, with no propagation to adjacent units.
This test was conducted at both the module and cell levels, simulating scenarios of cell thermal runaway within the energy storage system, providing strong validation of system safety. During the process, JDEnergy applied rigorous settings to replicate extreme power plant conditions:
l Extreme Density: “Side-by-Side + Face-to-Face” layout with only 10 mm spacing between cabinets.
l Fully Charged State: 100% SOC to maximize the risk of energy runaway.
l Active Protection Disabled: Removal of BMS temperature monitoring, smoke detection, and other software protections; relying solely on structural protection and leaving everything to “passive safety”.
During the test, continuous heating was applied to the cells within the main cabinet PACK. After about 1 hour, thermal runaway was triggered, the voltage curve dropped sharply, and the main cabinet temperature surged to over 600 °C. After 48 hours, the main cabinet showed no fire, explosion, or structural damage. Adjacent cabinets remained fully intact, with a maximum surface temperature of just 27.5°C (well below the international standard of 179°C). The wall temperature rise was only 3.3°C (far lower than the 97°C limit), and all battery data and BMS functions operated normally.
This achievement demonstrates JDEnergy’s system-level safety strength—proving that even under extreme conditions, our energy storage systems could effectively prevent thermal propagation beyond a single cabinet, laying a solid foundation for the JDEnergy’s global expansion strategy.
Looking ahead, JDEnergy will continue to focus on safety-driven design and technological innovation, ensuring secure operation of energy storage projects worldwide and contributing to the healthy development of the global energy storage industry.
