Why is disassembly of lithium-ion batteries so difficult?

The disassembly of lithium-ion battery systems from automotive applications is a complex and therefore time and cost consuming process due to a wide variety of the battery designs, flexible components like cables, and potential dangers caused by high voltage and the chemicals contained in the battery cells.

Can a planning approach be used for the disassembly of electric vehicle batteries?

5. Conclusions Using the example of the Audi Q5 Hybrid battery system, a planning approach for the disassembly of electric vehicle batteries has been demonstrated. Based on a priority matrix, a disassembly sequence for the Q5 battery system has been derived.

How are internal and external batteries benchmarked?

Thereafter, benchmarking of internal and external batteries is performed by using the functions as guidelines, resulting in a variety of design solutions. The design solutions are assessed from an assembly, disassembly and modularity point of view to establish what solutions are of interest.

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.

How do you remove a battery pack from a stack holder?

After disassembling the stack holders, the battery pack can be taken out of the casing bottom. In a last step, the stack fasteners are unscrewed and removed to finally obtain the battery stacks/modules. Table 2.

Why is a battery taken apart?

A battery is taken apart for several reasons, as service or recycling, and during these actions it is significant for the battery to be safe to work with since high voltage is involved. At the same time as a safe interaction is necessary, the operator is required to access different parts to be able to move them.