The objective of the joint project is to improve the product and process design of battery systems by optimizing the interface between 1st and 2nd life, including operating data. This will enable a significant increase in the reuse rate of used, still functional battery components. This is to be achieved by linking the different domain-specific partial models that describe a battery system. The continuous linking in the system model of the model-based system development (MBSE) allows the finding of an overall optimum for the 1st and 2nd life application.
The project can sustainably strengthen the innovation pipeline within the framework of the BMBF umbrella concept Research Factory Battery, since the development of cell and system concepts is already designed in the early phase to meet the requirements of later use in a second life cycle. Therefore, the project will investigate the influence of the factors aging and service life on performance and safety in the second life cycle, and will develop more sustainable battery system concepts and show how systems can be reused in different ways through intelligent design. The lithium-ion battery is thus developing one step further towards a “green battery”.
The research project focuses on the topic area of sustainability, as an economic recovery of functional battery cells not only offers a significant cost reduction potential, but also an ecological necessity to reduce the use of resources.
The overall context of the project is visualized in Figure 1: