Publish Time: 2022-10-24 Origin: Site
Components made from carbon fiber-reinforced plastic (CFRP) and glass fiber reinforced plastic (GFRP) have excellent mechanical properties, such as high stiffness and strength combined with low weight. For example, a battery housing made from CFRP can save up to 40 percent weight compared to aluminum or steel.
What are the advantages of ev battery housings?
What are the advantages of battery housing production?
What are the components of a battery housing?
Arguably the main driver for the choice of composite materials is the reduction in vehicle weight, which can be reduced by up to 40% if the battery housing is made of 100% composite materials rather than aluminium. The lighter weight of a battery pack housing made from composite materials has a positive cascading effect on the overall vehicle design. Because of the reduced weight of the body due to the battery box factor, the required battery and engine sizes are reduced when towing a lighter vehicle. This positive spiral effect reduces vehicle costs and range anxiety and helps to strongly promote the use of electric vehicles at scale.
Light weight and high specific stiffness
A weight reduction of 100 kg in the battery housing of an electric vehicle can save about 4% of the drive energy. Lightweight construction thus contributes significantly to increased range. Alternatively, lighter weight allows smaller and lighter batteries to be installed for the same range, which again saves costs, reduces installation space and shortens charging times. For example, scientists at the University of Applied Sciences in Munich believe that this reduction in weight by 100 kg in size will result in a reduction in battery costs of up to 5 percent. In addition, the lighter weight supports driving dynamics and reduces the size and wear of the brakes and chassis. Composite materials also exhibit particularly high stiffness and thus contribute to improved crash safety.
Enhanced fire protection
The thermal conductivity of fiber composites for battery cases is about 200 times lower than that of aluminum, a good prerequisite for effective fire protection of electric vehicle batteries, which can be further improved by additives. For example, our in-house tests show that composites last four times longer than steel, even without mica. This provides occupants with valuable rescue time in case of emergency.
Lithium-ion battery housings are importantly divided into two types: hard cases (steel cases, aluminium cases, nickel-plated iron cases, etc.) and soft cases (aluminium-plastic film). Lithium-ion battery housings are now marketed as aluminium alloy housings, which are also one of the metal types. Aluminium alloy has low density, but relatively high strength, close to or more than high quality steel, and good plasticity. Automotive battery housing - cell shell aluminum shell stamping and forming equipment, according to its material and production process characteristics, the choice of stamping hydraulic press and die can be a stretch forming. It is called the automotive battery housing stretching and forming hydraulic press and the tonnage of the machine is chosen to be 500 tons. The equipment is also known as 500 tons power battery housing stretching and forming hydraulic press.
FHZL is also the first Chinese enterprise to export the sand 3D printers to the overseas market. It can also meet customers’ demands on different casting process by simply choosing the appropriate parameters.