The electrolyte filling of lithium-ion batteries and the subsequent wetting are essential process steps in battery production and represent the interface between cell assembly and formation.
The electrolyte filling process aims to dose the necessary amount of electrolyte into the battery within the shortest possible time. In general, the voids of the cell stack are not completely filled after electrolyte dosing. To allow the liquid to penetrate the porous media completely, the cells are warehoused.
This way, the process model assists the user in designing an electrolyte filling process for a random battery. The proposed implementation of the filling process serves as a base for the design of the filling apparatus.
Storing energy in batteries is getting more and more important not only in the automotive, biking and power tools sectors. Upon the emergence of these megatrends at the latest, the production of lithium-ion cells comes further into focus for various industries. An especially critical process here is filling the battery cells with electrolyte.
Deriving requirements for filling process and machinery Up to now, the filling process has to be newly designed for every type of electrochemical system and cell type . The process model therefore aims to assist in the conception of a filling process.
between the battery active material and the copper foil can be increased by using structured copper foils. The impact of the structuring on the filling was also demonstrated with a filling time reduction of 10%. better cell capacity retention in cycling tests. 1.3.3. Dry blend electrodes Coating