04.5 EV fires & charging research
Our project focus - EV fires that
Of all electric passenger vehicle traction battery fire incidents studied, approximately a third went into thermal runaway while connected to AC or DC EV charging, or within an hour of being disconnected from AC or DC EV charging.
In all incidents studied, charging could not be proven as the cause of thermal runaway, but may have pre-empted electric vehicles with:
an existing unknown fault
a cell defect - fault during manufacturing
to go into thermal runaway sooner than expected.
It should also be noted that electric vehicles, by definition, spend significant periods of time connected to energised charging, so the high number of charging-related incidents should not be considered unusual.