Battery tray

Battery tray

  • Sual focuses on the two core areas of photovoltaics and new energy electric vehicles. Its main products include: development, manufacturing, processing and sales of industrial profiles such as aluminum alloy profiles, photovoltaic solar aluminum frames, and new energy electric vehicle aluminum accessories.
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Different from traditional cars, new energy vehicles use batteries as power to drive the car. It is limited by the weight of the power battery, the mileage of the power battery, and the high pressure of the vehicle's energy-saving and emission-reduction policy. In terms of vehicle design and data application, its body Lightweight has become the first issue that car companies have to think about. Therefore, battery-driven new energy vehicles need more weight reduction than traditional vehicles. This also opens up a wider market space for lightweight materials such as aluminum.

Among the lightweight materials for automobiles, the comprehensive cost performance of aluminum alloy profiles is higher than that of steel, magnesium, plastics and composite materials, and has comparative advantages in terms of application technology, operation safety and recycling applications. The density of aluminum material is only 1/3 of that of steel, and its weight reduction and energy saving effects are obvious, and it can better improve ride comfort under the premise of ensuring safety. At the same time, aluminum materials are increasingly easy to recycle. The comprehensive cost-effective advantages of aluminum determine that it becomes the choice for automotive lightweight applications.

The application of aluminum in new energy auto parts mainly includes body, wheel hub, chassis, anti-collision beam, floor, power battery and seat, etc. According to the classification of processing methods, aluminum for automobiles is mainly divided into three forms: die-casting, extrusion and rolling. Among them, the amount of die-casting parts accounts for about 80%, and the amount of extrusion parts and rolling parts each accounts for about 10%. Die-casting parts are mainly used for engines, wheels and other parts, extrusion parts are mainly used for seat frames, luggage racks, door beams, etc., and rolled parts are mainly used for producing aluminum plates for car bodies.

Among them, the body includes the body frame made of high-performance aluminum profiles and the skin and doors made of high-precision aluminum plates; aluminum alloy wheels (cast aluminum wheels or forged aluminum wheels); the chassis includes high-strength large-section aluminum profiles and aluminum Alloy forgings; anti-collision beam bumpers made of profiles; new energy bus floors; lithium-ion batteries including battery positive aluminum foil, battery aluminum shell and battery aluminum tray (European and American battery trays are all made of aluminum alloy profiles, and domestic battery trays are made of aluminum Alloy material, also stainless steel material); new energy bus seat system, etc.

In the past, new energy vehicles mostly used steel materials to manufacture electric vehicle power battery trays, but now many companies mainly use aluminum alloy profiles. The density of the aluminum alloy profile is 2.7g/cm3, and the aluminum alloy material has obvious advantages in terms of compression and welding. The density of magnesium alloy is 1.8g/cm3, and that of carbon fiber is 1.5g/cm3. These materials are used to produce battery trays, which will greatly improve the lightweight of new energy vehicles.
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