New energy battery block disassembly diagram

How a battery design is developed?

The design solutions are assessed from an assembly, disassembly and modularity point of view to establish what solutions are of interest. Based on the evaluation, an “ideal” battery is developed with focus on the hardware, hence the housing, attachment of modules and wires, thermal system and battery management box.

What happens if a battery module moves around?

If the modules would move around, the energy supply to the vehicle is disabled and the modules could potentially collide and get damaged. Moreover, by using the “click on, click off” solution for high voltage batteries might contribute to faster wear out on the connections and a decreased isolation.

How many modules are in a car battery pack?

The BMS and power relays can be found inside the pack whereas the DC-DC converter, HV controller and other HV units are mounted in other parts of the vehicle. Furthermore, the pack consist of ten modules, divided in two rows and two levels with the lower modules containing 30 cells and the upper modules 24.

What is the difference between a battery module and a module frame?

The battery modules on the other hand, are already modularised in the way that the same type is used throughout the pack. Next, the module frame consists of one frame with equally distributed gaps for the battery module connections. Two respectively three of these frames, modules, can be applied in the heavier trucks.

How do you design a battery pack?

When designing a battery pack, it is important to weigh different parameters against each other to acheive a suitable design. It is therefore significant for these tradeoffs to have a valid foundation to stand on. One tradeoff that needs to be accounted for is comparing safety of the battery against its weight.

What are some examples of module assembly & disassembly?

Another good example of module assembly and disassembly is found in Tesla S which also has modules mounted to the pack with four screws. To access these screws a plastic cover must be removed, but once that is gone, it is easy to unscrew the modules and later on lift them.