Energy storage battery box shell material requirements

Why does a car battery pack box need a shell?

When the car is impacted by external force and the excitation impact caused by the uneven road, the battery pack box shell is required to protect the battery module from an external force, so that the single cell is not squeezed, resulting in electrolyte leakage, or battery short circuit, thermal runaway, and other problems.

What are the design requirements of EV battery pack case?

Its appearance design is mainly carried out from the aspects of material, surface anti-corrosion, insulation treatment, product identification, etc. The EV battery pack case must meet the strength and rigidity requirements and the electrical equipment shell protection level IP67 design requirements and provide collision protection.

Can aluminum and high-strength steel connect a battery pack box?

Li et al. analyzed the connection between aluminum and high-strength steel, expounded on the current status of the connection technology of new energy vehicle battery pack boxes, and put forward the point of view that the connection-related issues such as matrix damage, interface failure, and long welding cycle need to be further studied .

What is the main structure of a battery pack box?

The main structure of the battery pack box includes the upper-pressure cover, the upper-pressure rod, the lower box body of the battery pack, the inner frame, the lifting lug, the battery module, the single battery, and other structures.

What makes a good battery pack box?

The structure of the battery pack box must have good impact resistance and shock resistance.

What is a power battery pack box?

The power battery pack box is the core component of the BEV. The power battery pack provides energy for the whole vehicle, and the battery module is protected by the outer casing. The battery pack is generally fixed at the bottom of the car, below the passenger compartment, by means of bolt connections.