New energy storage fire extinguishing agent

What is the mechanism of fire-extinguishing agent?

The mechanism of fire-extinguishing agent is mainly divided into isolation, smothering, cooling and chemical suppression. However, the fire triangle of battery is difficult to destroy, as the three elements of fire triangle can be provided by the battery itself. In addition, LIB fire is a complex fire with the characteristics discussed above.

Which extinguishing agent is used to suppress libs fire?

Currently, the common fire-extinguishing agents applied to suppress LIBs fire can be divided into gaseous extinguishing agent (CO 2, HFC-227ea, C 6 F 12 O etc.), liquid extinguishing agent (water-based fire-extinguishing agent, liquid nitrogen etc.) and solid extinguish agent (dry powders, aerosol fire-extinguishing agent etc.).

How fire suppression technology can improve the fire-extinguishing and cooling effect?

Appropriate fire suppression technology strategy can improve the fire-extinguishing and cooling effect of fire-extinguishing agent and inhibit the re-ignition of LIBs fire. The fire suppression strategies can be summarized as follows:

Which fire extinguishing agent is not suitable for Lib fire?

Similar to these gaseous fire-extinguishing agents, solid fire-extinguishing agents such as dry powder are not suitable for extinguishing LIB fires due to their poor cooling effect. While C 6 F 12 O and liquid nitrogen possess excellent extinguishing and cooling capacity, which are suitable for extinguishing LIBs fire in confined environment.

Can fire extinguishing systems be used to develop a fire suppression strategy?

DNV GL, FM global, RISE have made attempt to evaluate such systems and that can be used as input towards the development of the fire suppression strategy [83, 136, 156]. An ideal fire extinguishing system should have excellent fire extinguishing and cooling effects, which can quickly extinguish open flames and reduce battery system temperature.

Which fire extinguishing agent has the best cooling ability?

Among these fire-extinguishing agents, liquid nitrogen possesses the best cooling ability, followed by C 6 F 12 O, HFC-227ea, CO 2, dry powders and aerosol. With the further development of LIB towards higher voltage and higher energy, the insulation of fire-extinguishing agents has become an essential parameter to be considered first.