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Burn 2.1 billion at once!

 Last Update: 2022-04-29
 Source: Internet
 Author: User

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electric traction motor

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[ Hot Focus of Chemical Machinery Equipment Network ] In February 2022, a ro-ro carrier loaded with nearly 4,000 luxury cars such as Volkswagen, Porsche, Audi, Bentley and Lamborghini caught fire in the Atlantic Ocean.
After burning for a week, it sank deep into the Atlantic Ocean.
place
.
The cause of the fire is suspected to be caused by the lithium battery of the electric vehicle.
All the people on board have been rescued, but the luxury cars on board are not spared, and the loss is estimated to be as high as 2.
1 billion yuan
.

Chemical machinery and equipment network hotspots focus on chemical machinery and equipment

It is said that although the open fire on the ship was basically eliminated a week later, there were still thick smoke billowing from the cargo hold, and there were still risks on the cargo ship, and the lithium battery of the electric vehicle in the cabin may still be burning
.

Technological innovation breaks through industrial bottlenecks

　　Electric vehicles and lithium batteries are on fire frequently, which has become a "heart disease" for the general public
.
According to statistics from the National Fire and Rescue Bureau, in 2021, nearly 18,000 fires caused by faults in battery vehicles and their batteries were reported, killing 57 people and injuring more than 100 people
.

　Electric vehicles and lithium batteries are on fire frequently, which has become a "heart disease" for the general public
.

　　The electric vehicle battery spontaneously ignites at the moment of the short circuit, and the fire spreads rapidly.
The poisonous gas can cover the entire room in 30 seconds; the fire temperature can reach 1,000 degrees in 3 minutes; the electric vehicle battery may be charged for more than ten seconds from the time of fire to the explosion.
It takes 100 seconds! When the lithium battery of an electric vehicle burns, its internal temperature will rapidly rise to more than 1200 degrees Celsius, which is much higher than the 800 degrees Celsius of the gasoline flame under normal temperature and pressure.
Even if the fire is extinguished, the internal reaction of the battery may not be terminated, which leads to The possibility of its re-ignition makes it more difficult to extinguish the fire!

　　The lithium battery of an electric vehicle catches fire, but is it a waste of food? The answer is of course no
.
In the context of global energy conservation and emission reduction and the national "dual carbon goal", electric vehicles have ushered in explosive development, and there is still huge room for development in the future, and lithium batteries are their main source of power
.
In the rapidly developing electric vehicle industry, "safety" is an unavoidable and primary issue
.
Only technological innovation can effectively break through the "bottleneck" restricting its development, promote industrial development and technological progress, and benefit the society
.

　　Silicone materials escort lithium batteries

　　The spontaneous combustion of electric vehicles mainly occurs in four situations: combustion caused by charging, combustion caused by battery driving or placement, combustion caused by collision and rollover, and combustion caused by wading
.
Most of these accidents point to power batteries, including battery leakage, battery high temperature, overcharge and line aging
.
How to strengthen the safety of power battery?

　　At present, the protection of power batteries includes structural shell protection, diaphragm blocking protection, overcharge voltage protection, BMS, etc.
, but its stable operation and safety issues still need to be continuously improved
.

　　Silicone potting compounds are widely used in power batteries because of their excellent high and low temperature resistance, elastic buffering capacity, thermal conductivity and flame retardant properties, which can ensure the effective heat dissipation and safety of electronic appliances
.
Experiments have shown that silicone encapsulant can effectively improve the safety of power batteries
.

　　1.
Overcharge protection for power battery module

　　Overcharge tests were carried out for lithium batteries encapsulated with silicone encapsulant and ordinary encapsulant
.
It can be seen that for lithium battery products protected by lithium battery potting glue, silicone potting glue can absorb impact stress, and effectively block flame retardant, cut off chain reactions, protect cells, and prevent explosions; while ordinary potting can be seen.
The glue protection product has a chain reaction, causing the surrounding cells to burn and even explode
.

　　2.
Protection against internal short circuit of power battery module

　　Appearance of battery cells after acupuncture internal short circuit of power battery module

　　Since the silicone potting compound for lithium batteries has good insulation, the battery module encapsulated by it can not cause a chain reaction of surrounding cells when a single cell is short-circuited inside the battery or a foreign object pierces the cell.
, play a blocking role, protect the safety of adjacent cells, prevent chain reactions, better protect the power battery module, and improve the safety of the battery module
.
It can be seen from the picture that the cells protected by silicone potting glue have been effectively protected
.

　　3.
Protection of internal temperature control of power battery module

　　As can be seen from the test data in the above figure, the temperature rise of the lithium battery encapsulated with silicone potting compound during the charging and discharging process is significantly smaller than that of the unprotected product
.
Effective temperature control can significantly improve the safety of lithium batteries
.

　　Technology for Good Helps Realize a Better Life

　　Recommended national invention patent products for lithium battery safety protection glue:

　　Sibao 4926 silicone potting compound for lithium battery can simultaneously protect the power battery pack temperature, impact resistance, internal short circuit, overcharge, etc.
, and solve the lightweight, waterproof, heat dissipation, flame retardant, shock resistance and The explosion of a single battery does not cause technical problems such as the explosion and combustion of the entire battery, which improves the overall safety of electric vehicles and has been widely used and highly recognized by many power battery manufacturers
.

　　Relying on national innovation platforms such as Sibao Technology National Enterprise Technology Center and National Laboratory Accreditation (CNAS) Inspection Center, the product has outstanding innovation achievements and has won numerous national awards.
It is a star material for lithium battery potting
.

　　Accidents of electric vehicles (new energy vehicles, battery vehicles) are emerging one after another, which seriously threatens the safety of people's lives and property.
It is imperative to protect the safety of their batteries
.
Technology is good, let high-quality silicone materials lead us to realize the yearning for a better life and protect our safety!

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