HS2/AS2 Series
7
8
WARNING
·If a fire has just occurred, try to disconnect the battery circuit breaker and cut off the power supply first, but only if y
ou
can do so without endangering yourself.
·If the battery is on fire, do not attempt to extinguish the fire but evacuate the crowd immediately.
Potential danger of damaged battery:
Chemical Hazard: Despite of its careful and professional protection design against any hazard results, rupture of battery may still occur
due to mechanical damage, internal pressure etc., and may result in a leakage of battery electrolyte. The electrolyte is corrosive and flammable.
When there is fire, the toxic gases produced will cause skin and eyes irritation, and discomfort after inhalation. Therefore:
1) Do not open damaged batteries;
2) Do not damage the battery again (shock, fall, trample, etc.);
3) Keep damaged batteries away from water (except to prevent an energy storage system from catching fire);
4) Do not expose the damaged battery to the sun to prevent internal heating of the battery.
Electrical hazard: The reason of fire and explosion accidents in lithium batteries is battery explosion. Here are the main factors of battery
explosion:
1) Short circuit of battery. Short circuit will generate high heat inside battery, resulting in partial electrolyte gasification, which will stretch
the battery shell. The temperature reaching ignition point of internal material will lead to explosive combustion.
2) Overcharge of battery. Overcharge of battery may precipitate lithium metal. If the shell is broken, it will come into direct contact with the
air, resulting in combustion. The electrolyte will be ignited at the same time, resulting in strong flame, rapid expansion of gas and explosion.
