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Table 4 Summary of batteries and associated hazards (Agency, 2020) (International Electrotechnical Commission, 2020)

From: Large-scale energy storage system: safety and risk assessment

Battery technology

Hazard type

Thermal, Firea

Chemical

Electrical

Physical

Lithium‐based

Lithium Ion

Li‐ion battery

Yes

Yes

Yes

Yes

Lithium metal battery

Li‐metal

Yes

Yes

Yes

Yes

Lead‐acid

Vented lead‐acid battery

Pb‐A (vented)

Yesa

Yes

Yes

No

Valve regulated lead acid battery

Pb‐A/RLA

Yesa

Yes

Yes

No

Sodium‐based

Sodium sulphur battery

NaS

Yes

Yes

Yes

Yes

Sodium nickel chloride battery

NaNiCl

Yes

Yes

Yes

Yes

Flow battery

Vanadium redox flow battery

VRFB

Yesa

Yes

Yes

Yes

Zinc bromide flow battery

ZnBr

Yes

Yes

Yes

Yes

  1. aIndicates release of hydrogen off‐gas, indicating increased explosion risk