Fraunhofer Institute for Solar Energy Systems ISEThe LAENDLE project is developing a solvent- and PFAS-free dry coating process for sodium-ion battery electrodes. IKA-Werke GmbH and Fraunhofer ISE are combining their expertise in mechanical engineering and battery research to promote local value creation in Baden-Württemberg. The added value for the industry lies in the reduction of production costs and resource consumption while improving environmental compatibility.
Solvent- and PFAS-Free Battery Electrode Coating Processes from Baden-Württemberg for High-Performance Sodium-Ion Batteries
LAENDLE
Dry-processed electrode film for sodium-ion batteries.
Initial Situation
There is currently no large-scale industrial process that enables PFAS-free coatings. LAENDLE is aiming to validate the process on a laboratory scale (TRL 4) and plans to transfer the results to industrial production. The project is thus contributing to the energy transition and the sustainable design of battery production.
Objective
The research project focuses on developing an innovative dry coating process for battery electrodes using PFAS-free binders in order to overcome the challenges of conventional wet coating technology. The new process offers advantages in terms of binder selection and reduces energy and space requirements during the electrode manufacturing process. The aim is to produce performance sodium-ion batteries from sustainable materials.
Approach
Fraunhofer ISE is involved in evaluating binding materials and developing the dry-coating process. In addition, the electrodes and battery cells produced are comprehensively characterized at ISE.
IKA-Werke GmbH is developing the plant technology for the new process and contributing its many years of experience in mechanical engineering and process development. The added value for the industry lies not only in the provision of an environmentally friendly technology, but also in the creation of a local value chain in Baden-Württemberg.