Aluminum 3003-h14

New energy vehicle power battery shells commonly use aluminum 3003-h14 sheet, partly due to considerations of lightweight and also due to material processing considerations. The power battery shell requires the aluminum sheet with good elongation to undergo 5-7 stamping processes. Among the current domestically produced aluminum sheet grades, the 5000 series, 6000 series, 2000 series, and 7000 series aluminum grades have stronger hardness and are not suitable for deep drawing. The 1000 series and 8000 series aluminum alloy have cheaper hardness and are not suitable for large capacity batteries.

3003 h14 aluminum sheet belongs to aluminum-manganese series alloy, which has easy processing, high temperature corrosion resistance, good heat transfer and conductivity. This material, from performance to composition, has been tested multiple times and is highly suitable as a new material for power battery shells. The density of aluminum alloy is much smaller than that of traditional stainless steel encapsulation materials, so it is inevitable to use 3003 h14 aluminium alloy material to make battery shells in order to reduce the weight of the battery. The specifications of 3003 aluminum sheet used for power battery shells are as follows:

Alloy grade: 3003

Alloy state: H14

Thickness range: 0.8-3.0mm

Using aluminum 3003-h14 as the material for power battery shells has the following advantages: 3003 alloy aluminum sheet has good formability and is mainly used for deep drawing materials. It has many advantages such as good surface condition, good plasticity, and pressure resistance when used to make stamped parts, models and shells.