Lithium-ion Battery Electric Car Fire Aerosol Fire Suppression System

The background of lithium battery fires

Lithium-ion batteries have an irreplaceable role in the field of consumer electronics and new energy vehicles because of their high energy density, environmental friendliness and long service life. But at the same time, lithium-ion batteries are also very dangerous and very prone to fire and explosion. According to the incomplete statistics of the OFweek lithium network, there were 40 fire accidents related to the lithium battery industry in 2016, which were distributed in the production, transportation, application and recycling of lithium-ion batteries. Especially in the new energy vehicles field, the many power battery fires were caused by charging problems, bad weather, battery spontaneous combustion, etc.

The Thermal runaway warning of power battery pack and fire extinguishing system

The battery is connecting with vehicle BMS system and the early warning and control device is combined with BMS. The automatic fire-extinguishing device of battery pack is connected with early warning and control device. And all situation can be displayed and controlled by the control board of drivers.

Technical parameters:

The intelligent control system structure of power battery for thermal runaway

The intelligent management for thermal runaway of power battery, it is necessary to realize the detection of initial battery fire, intelligent analysis, early warning, main functional requirements:

• Temperature detection
• Gas detection
• Smoke detection
• Flame detection

The advantages of the system

• Fire detection records of whole circle
• Intelligent judgement, linkage fire extinguishing
• No residual fire extinguishing agent, no damage to electrical equipment
• Open interface, information sharing
• Early accurate identification of fire
• Function of data black box , data tracking
• Long service life, easy maintenance

The information of FireLess early warning and controller of power battery(FireLess 0.5)

1. Overall dimensions: 78mmX50mmX22mm
2. Device weight:128g
3. Rated power :≤0.5W
4. Input current :≤1A
5. Working voltage :12Vdc(9-30Vdc)
6. Working temperature:-40~+85℃
7. Working humidity:≤95%
8. Working pressure:550hPa~1060hPa
9. Detection way: Temperature, smoke, gas, the flame
10. Detection range: 0.5m³(single)
11. Alarm mode:Smart meters BMS display terminal
12. Communication interface:CAN /wiring
13. Actuating operation:Automatic/ manual
14. Service life :≥8 years
15. Typical applications:Monomer type power battery box