WEB Coating and Drying of Sodium-Ion-Battery ElectrodesFriday (28.02.2020) 10:07 - 10:07 Poster Room Part of:
Lithium-ion batteries (LIB) are currently the most important electrochemical energy storage devices. The largely mature technology is characterized by high gravimetric and volumetric energy densities. The increasing demand for LIB in the future gives rise to concerns about the availability of certain raw materials such as lithium and cobalt and causes a price increase. In particular, this represents a risk for cell manufacturers. Furthermore, there are environmental difficulties due to the active components of the battery.
As part of the Post Lithium Storage Cluster of Excellence (PoLiS), scientists are therefore researching the battery of the future. The central goal of the PoLiS Cluster is to develop a fundamental understanding of electrochemical energy storage in novel systems, to combine basic material properties with critical performance parameters and thus to create the basis for the practical use of post-lithium systems. Sodium-ion batteries (SIB) could be one of the sustainable and environmentally friendly but also powerful and reliable storage systems, especially for medium and large energy storage systems.
The challenge is the development of active components for anode, cathode and electrolyte on the one hand and the large-scale processing of the battery on the other. The identification of challenges in the electrode processing of different active materials is crucial for a thorough understanding of the manufacture of battery electrodes.
In this work, the processing from slurry preparation to coating and drying is investigated. Furthermore, the influence of the processing of the electrodes with different active materials on the properties of the electrodes is investigated. The focus is on identifying the challenges in each process step and developing solutions. For this purpose, knowledge about the processing of LIB electrodes is used and comparative analyses are conducted. The advantages of non-Lithium-ion batteries, the processing challenges and first results concerning the comparison of the processing of LIB and SIB will be presented.
This work contributes to the research performed at CELEST (Center for Elektrochemical Energy Storage Ulm-Karlsruhe). CELEST is the largest German development platform for energy storage system and battery research. It combines knowledge oriented research with practical development and innovative production technology.