Research production battery cell - development, assembly and finalization of the prismatic hardcase and pouch cell - quality management and inline metrology
3 years (06/2021-05/2024)
Funding: 0.27 Mio. €
Fraunhofer Institute for Industrial Engineering IAO
Fraunhofer Institute for Chemical Technology ICT
Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM
Fraunhofer Institute for Casting, Composite and Processing Technology IGCV
Fraunhofer Institute for Ceramic Technologies and Systems IKTS
Fraunhofer Institute for Manufacturing Engineering and Automation IPA
Fraunhofer Institute for Production Technology IPT and Fraunhofer Research Institution for Battery Cell Production FFB
Fraunhofer Institute for Silicate Research ISC
Fraunhofer Institute for Solar Energy Systems ISE
Fraunhofer Institute for Systems and Innovation Research ISI
Fraunhofer Institute for Silicon Technology
Fraunhofer Institute for Material and Beam Technology IWS
Fraunhofer Institute for Machine Tools and Forming Technology IWU
Fraunhofer Headquarters and Academy
RWTH Aachen University, Production Engineering of E-Mobility Components (PEM), Laboratory for Machine Tools and Production Engineering (WZL)
University of Münster, Münster Electrochemical Energy Technology (MEET)
Center for Solar Energy and Hydrogen Research Baden-Württemberg (ZSW)
Increasingly complex material flows in production processes for Lithium-ion batteries set high demands on quality, safety and repoducabitlity for intermediate and end products. Therefore, measuring methods and technology for quality assurance and traceability have to be optimized in order to enable future scale up of production processes while increasing production efficiency. Such measurement systems would not only form the base of real time process monitoring but also aid in realizing the production digitalization for fullfulling ambitious industry 4.0 claims and the generation of virtual images (digital twins) for further analyses. On the methodological perspective, such an integration and the extension of the measuring technology require a generally valid basis for decision-making.
In the previous project FoFeBat 1, a first production line for large-format, cylindrical lithium-ion battery cells was already developed and put into operation. This research infrastructure is intended to enable the investigation of innovative production processes for prompt transfer to industrial scale and thus drive innovation and commercialization of production technologies for existing and future cell formats and concepts considering large-scale production.
In context of the further infrastructural development of the FFB, the central project objective of FoFeBat2 lies in the research of prismatic hardcase and pouch battery cell formats with regard to their development, assembly and finalization, from which a second production line is to be developed and put into operation. Especially for cell finalization, a sufficient cell formation process is to be added for this as well as the already developed production line. With reference to the complete digitalization of the entire process chain and the associated virtual mapping, an overall concept for process monitoring is to be developed. For this purpose, the IWF will select a suitable measuring technique for the detection of quality parameters in production with the aid of a specially developed evaluation matrix and adapt it to the requirements of inline inspection technology. In addition to the procurement, the implementation and commissioning of the measurement technology will also be carried out.