Lithium-Ion Batteries and Electric Vehicles: Home

BESS: Battery Energy Storage System, also known as ESS, Energy Storage System.

Off-Gassing: Gases released by electric vehicles can produce flammable gases without a flame.

Reignition: "Once a battery cell has gone into thermal runaway & ignited, it is usually completely destroyed & cannot ignite again. However, other nearby cells that were heat impacted by the fire - but not burnt - may go into thermal runaway at a later time."

Stranded energy: "[T]he energy remaining in a cell after efforts to safely discharge the stored energy in damaged lithium-ion cells – is an important, unresolved issue. Residual, stranded, DC energy within damaged lithium-ion batteries presents a significant fire and shock hazard – particularly to emergency responders."

Thermal runaway: "[O]ccurs when a battery cell short circuits and begins to heat up uncontrollably."