Funded by: BMBF
Runtime: 01.01.2025 – 31.12.2027
Contact persons: Niclas Hornischer, Finn Reinkensmeyer
Summary of the project:
Conventional electrode production for lithium-ion batteries (LIB) uses an extrusion process with low solid content and subsequent die coating. This is associated with long dwell times during drying, which account for a significant share of the energy consumption and consequently also the costs during LIB production. The granulate-based semi-dry electrode manufacturing process therefore offers an opportunity to significantly reduce production costs, while at the same time optimizing product quality through the greatly increased storage stability of the granulates, so that a temporal and spatial decoupling of the starting material production (improved flexibility) is made possible.
The objective of the GranuGoIn project is to further develop the semi-dry electrode production process for industrial application in both anode and cathode production. The semi-dry electrode production process developed in the GranuProd project will be further developed and transferred to new materials in order to realize an industry-oriented application. This requires scaling of the existing semi-dry electrode production process by adapting the process parameters during extrusion, further development of the coating process via granulate dosing and additional inline measurement technology for real-time quality assurance. The cells from the semi-dry manufacturing process are compared with reference cells from conventional electrode production and the corresponding energy consumption during their manufacture and evaluated in terms of cell performance and cost-effectiveness.
Objectives and tasks:
Project Partners: