Huawei Digital Power’s Smart String & Grid Forming Energy Storage System (ESS) has successfully passed an extreme ignition test in the presence of customers and Norway-headquartered independent assurance and risk management provider DNV.
Huawei applied for a patent regarding a fireproof energy storage system to prevent accidents. The application is now authorized and the tech giant could soon begin work on it. Energy Storage System and Control Method Thereof – Patent
However, in Huawei’s Smart String & Grid Forming ESS (container A), thermal runaway was initiated in 12 cells without an incident. The system’s combined defense mechanism—positive pressure oxygen barrier and directional smoke exhaust duct—effectively vented combustible gases, the manufacturer reported.
The test showed that Huawei’s ESS (container A) delayed fire ignition for seven hours in extreme scenarios, even as the number of thermal runaway cells increased. Such delayed propagation would allow emergency personnel time for early intervention, mitigating risks for personnel and property.
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