From: Large-scale energy storage system: safety and risk assessment
Hazard type | Examples | Standardized thresholds |
---|---|---|
Heat, fire and explosion | Thermal runaway | N/A |
Venting of combustible gases |  < 25% of lower flammable limit (LFL) | |
Fire/explosion | N/A | |
Chemical | Corrosive electrolyte | pH < 2.5, pH > 11.5 |
Toxic materials | LC50 Lv 1:5000–10000 ppm Lv 2:3000–5000 ppm Lv 3: 1000–3000 ppm Lv 4: < 1000 ppm (gas) Or 10–200 mg/L (liquid) | |
Reactive materials | N/A | |
Oxidizers | N/A | |
Physical | Hot parts | N/A |
Moving parts | N/A | |
Electrical | Electrical shock | 50Â V |
Arc flash | 5Â J/cm2 | |
Stored charge | N/A |