Nitrogen Fire Protection Device for Preventing EV Li-ion Battery Thermal Runaway

◆ Easier and affordable installation, require very little maintenance

Nitrogen fire protection systems can be installed quickly and easily, making them ideal for all EV manufacturers.

◆ Data interaction with vehicle BMS

Battery Management System (BMS) – Monitors the state of charge (SoC), voltage and temperature of individual cells within each battery pack, detecting fire and providing information on the current state of battery cells, while also giving early warning of any potential problems that may occur during driving, charging or parking.
 

◆ Stop the cascading effect of thermal runaway

Thermal runaway occurs when a battery becomes overheated and self-ignited heat, which in turn causes it to overheat even more. This can lead to a catastrophic event known as thermal run away, which can result in an explosion or fire.
The latest generation of nitrogen fire protection device is designed to prevent thermal runaway by releasing a controlled amount of nitrogen gas into the battery enclosure, creating a fire-retardant atmosphere. The gas displaces oxygen from the enclosure and decreases the oxygen level available to sustain combustion, thus preventing thermal runaway.
 

◆ It is not a fire suppression system

If the battery box catches fire due to external factors, the nitrogen stored in the gas tank provides protection, isolates oxygen in the air, prevents the fire from further expanding, prevents thermal runaway chain reactions and fire explosions, rather than extinguishing the fire.
 

◆ Modular design, customers can choose according to specific needs

◆ IP68 & 360H anti-corrosion

 

◆ 24H real-time monitoring, optional cloud platform service

Monitoring and displaying the battery status on real time basis
 

◆ Provide a full range of customized solutions

We can modify the communication protocol according to customer needs, to achieve customized display solutions;
 

◆ Preventing condensation of battery packs in coastal areas with high humidity and certain places with wide difference between day and night temperatures.

 

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Main Parts of Guchen Nitrogen Fire Protection Device

 

Name	Configuration
Nitrogen encapsulated module	Core part, 1 set one vehicle
Master controller	Control function, 1 set one vehicle
Slave controller	Control function, when the number of battery packs is greater than 10 units, it will be equipped with 1 set one vehicle.
Battery pack pressure sensor	Monitoring the nitrogen pressure of battery pack, 1 piece one battery pack
Battery pack air inlet	1 piece one battery pack
Vehicle solenoid valve	Battery pack air inlet switch, 1 piece one battery pack
Air inlet elbow--8mm air pipe	Be Matched with the air inlet, 1 piece one battery pack
Compressed air filter	Used to filter air, 1 set one vehicle

Guchen nitrogen protection system is the only safety system currently proven to hamper the development of heat, and protect against thermal runaway in a lithium-ion battery pack. It is a perfect and techno-edge solution for actively internal fire prevention, and has been widely applied in highway buses, tourist coaches, city buses, commuter buses, autonomous driving bus, mining trucks and renewable energy storage market. We can confidently say that the nitrogen fire protection system can effectively stop unmanaged flames from causing an uncontrolled chain reaction to surrounding battery modules/cells.