Application of the hottest battery aluminum tray i

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The application of battery aluminum tray in new energy vehicles

the automotive industry is developing rapidly, but the energy problem is becoming increasingly urgent, and the environmental problems brought by cars have also attracted much attention. The development of new energy vehicle industry is a way to alleviate the energy crisis, reduce greenhouse gas emissions and reduce environmental pollution. At present, new energy vehicles have become an important direction of automotive industry reform

with the massive popularization of new energy vehicles in the fields of household vehicles, official vehicles, buses, taxis, logistics vehicles, etc., according to the data, the annual sales volume of new energy vehicles in China in 2020 will reach more than 5% of the total vehicle market demand, and a new energy vehicle industry system with market orientation, enterprises as the main body, and close integration of industry, University, research and application will be initially established. By 2025, it will increase to about 20%, forming an independent, controllable and complete industrial chain. Under the national total carbon emission target and the demand of the primary energy alternative catalogue, the proportion of annual sales of new energy vehicles will continue to increase significantly in 2030, with a scale of more than 10 million vehicles

it is not too late for China to implement the strategy of new energy vehicles. As early as 2001, the development of new energy vehicles was included in the "863" major scientific and technological topic during the Tenth Five Year Plan period. In recent years, in order to promote the consumption of new energy vehicles, governments at all levels have also implemented policies such as car purchase subsidies and licensing advantages to make all displacement nixie tubes zero first. The demand and development of new energy vehicles will drive the development of various automotive batteries, body lightweight and auto parts industries in the new energy era. At the same time, it will also bring a vast market opportunity for China's aluminum industry with unlimited use of some materials

different from traditional vehicles, new energy vehicles use batteries as power to drive vehicles. It is restricted by the weight of power batteries, the mileage of power batteries, and the high voltage of automobile energy conservation and emission reduction policies. In vehicle design and material application, the lightweight of its body has become the first issue for vehicle enterprises to consider. Therefore, battery powered new energy vehicles need to reduce body weight more urgently than traditional vehicles. This also opens up a broader market for lightweight materials such as aluminum

among automotive lightweight materials, aluminum alloy materials have higher comprehensive cost performance than steel, magnesium, plastics and composite materials, and have comparative advantages in terms of application technology, operation safety and recycling. The density of aluminum material is only 1/3 of that of steel, which has obvious weight reduction and energy saving effects, and can better improve the riding comfort on the premise of ensuring safety. At the same time, aluminum materials are easier to recycle. The comprehensive cost performance advantage of aluminum determines that it has become the choice of automotive lightweight applications

the application parts of aluminum in new energy vehicle parts mainly include body, wheel hub, chassis, crash beam, floor, power battery, seat, etc. According to the classification of processing forms, automotive aluminum is mainly divided into three forms: die-casting, extrusion and calendering, of which the consumption of die-casting parts accounts for about 80%, and the consumption of extrusion parts and calendering parts account for about 10% respectively. Die castings are mainly used for engines, wheels and other parts, extrusions are mainly used for seat frames, luggage racks, door beams, etc., and calendered parts are mainly used to produce aluminum plates for car bodies

among them, the body includes the body frame made of aluminum profile and the skin and door made of high-precision aluminum plate if this breakthrough can be achieved through the research technology of high-performance graphene battery; Aluminum alloy hub (cast aluminum hub or forged aluminum hub); The chassis includes high-strength large section aluminum profile structural parts and aluminum alloy forgings; Bumper of anti-collision beam made of profile; New energy bus floor; Lithium ion batteries include battery positive aluminum foil, battery aluminum shell and battery aluminum tray (all European and American battery trays are made of aluminum alloy, while domestic battery trays are made of both aluminum alloy and stainless steel); New energy bus seat system, etc

in the past, new energy vehicles used steel materials to make power battery trays for electric vehicles. Now many enterprises are mainly made of aluminum alloy materials. The density of aluminum alloy is 2.7g/cm. Aluminum alloy has obvious advantages in compression or welding. The density of magnesium alloy is 1 With high alignment accuracy of 8g/cm and carbon fiber of 1.5g/cm, these materials are used to produce battery trays, which will greatly improve the lightweight level of new energy vehicles

it is understood that the battery aluminum tray mainly adopts 6-series aluminum profiles. Good plasticity and excellent corrosion resistance, especially no stress corrosion cracking tendency and good welding performance, make the 6 series aluminum profile extremely suitable for the application of this project. In order to ensure product quality, advanced welding technologies such as friction stir welding need to be adopted to ensure the integration of products

new energy vehicles use more aluminum than ordinary vehicles. The rapid development of China's new energy vehicles will certainly promote the development potential of aluminum in the new energy vehicle market segment. Aluminum processing enterprises seize this development opportunity to develop high-performance and applicable aluminum or deep-processing aluminum components, which undoubtedly opens up a new sales orientation for enterprises in the diversified application needs of new energy vehicles

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