Application scenarios of magnesium hydroxide flame retardants in new energy vehicles

Magnesium hydroxide flame retardant has several key application scenarios in new energy vehicles, as detailed below:

Battery system

Battery pack housing: The battery pack is the core component for energy storage in new energy vehicles, and its housing must possess excellent flame retardant properties. Magnesium hydroxide flame retardant can be added to the materials of the battery pack housing, such as engineering plastics or composite materials. When the battery pack combusts due to overheating, short circuits, or other causes, the magnesium hydroxide flame retardant can decompose and absorb heat, reducing the housing temperature, preventing flame spread, avoiding battery pack explosions, and safeguarding the safety of vehicle occupants and the vehicle itself.

Battery module insulation material: Insulation materials are typically used between battery modules to prevent thermal runaway from spreading between them. Flame retardant magnesium hydroxide can be incorporated into these insulation materials to provide fire protection. When a faulty battery module catches fire, the insulation material containing magnesium hydroxide flame retardant can effectively block the spread of flames and heat to other modules, preventing damage to the entire battery system.

Battery thermal management system: Components such as pipes and seals in the battery thermal management system can also be made from materials incorporating magnesium hydroxide flame retardants. These components may be exposed to high temperatures during the operation of the battery system. Without adequate flame retardant properties, a fire could easily spread along the thermal management system. Magnesium hydroxide flame retardants can provide flame retardancy in such scenarios, ensuring the safe operation of the thermal management system.

Interior materials

R1: "Foam" must be translated as foam.  Original: The seat: Automotive seats are typically composed of multiple materials, including fabrics and foam. Adding magnesium hydroxide flame retardant to the foam material of the seat can enhance its flame-retardant performance. In the event of a fire inside the vehicle, the seat is less likely to ignite, reducing the production of smoke and toxic gases and minimizing harm to occupants. Additionally, magnesium hydroxide flame retardant can also improve the mechanical properties of the foam material to some extent, making the seat more durable.  Translation:.
Dashboard and Interior Panels: The dashboard and interior panels are large components within the vehicle that can be effectively protected against rapid fire spread by using materials containing magnesium hydroxide flame retardants. These parts may be exposed to direct sunlight, heat from electrical equipment, and other factors during daily use, posing certain fire risks. Magnesium hydroxide flame retardants can provide flame-retardant effects at high temperatures, safeguarding the safety of passengers and equipment.

Carpet and roof lining: Carpet and roof lining are also among the flammable components inside vehicles. Adding magnesium hydroxide flame retardant can provide these materials with excellent flame-retardant properties, reducing the burning rate and smoke generation during a fire. Particularly for roof lining, delaying combustion in the event of a fire is crucial for the safe evacuation of occupants.

Wire and cable

Insulation Layer: In new energy vehicles, wires and cables are used to transmit electrical power and signals, requiring their insulation layers to possess excellent flame-retardant properties. Magnesium hydroxide flame retardant can be added to the insulation materials of wires and cables. When wires and cables generate high temperatures due to overloads, short circuits, or other causes, the magnesium hydroxide flame retardant decomposes and absorbs heat, preventing the insulation layer from burning and stopping the occurrence of electrical fires. Additionally, it enhances the aging resistance of the insulation materials, extending the service life of wires and cables.

Cable trays and conduits: Cable trays and conduits are used to accommodate and protect electrical wires and cables. They are made from materials containing magnesium hydroxide flame retardants, which provide additional fire-resistant protection in the event of a fire. Even if the wires and cables ignite, the magnesium hydroxide flame retardant can prevent flames from spreading along the trays and conduits, avoiding the fire from expanding to other areas.

Body structural components

Vehicle body frame: Some new energy vehicles utilize high molecular or composite materials for their body frames, which incorporate magnesium hydroxide flame retardants to enhance fire resistance. In the event of a collision or other fire incidents, the body frame maintains structural stability, ensuring a safe survival space for occupants. Additionally, magnesium hydroxide flame retardants mitigate damage to the body frame from fires, reducing vehicle repair costs.

Door and window frames: The door and window frames are also crucial components of the vehicle body structure. Using materials containing magnesium hydroxide flame retardants can enhance their fire resistance. In the event of a fire, these parts can prevent flames from invading the interior, ensuring the safety of occupants. Additionally, magnesium hydroxide flame retardants can improve the strength and rigidity of the frame materials, enhancing the sealing performance of doors and windows.