Electroformed current collectors made from aluminum foam
Cost, energy density and quality are the main challenges for high-performance batteries, which are increasingly in demand in the fields of electromobility, medical technology and consumer applications. At the Centre for Electrochemical Surface Technology, the production of highly porous aluminum foams using electrodeposition is being investigated as part of the framework of the Smart-BAT research project. As 3-dimensional current collectors, these are intended to enable innovative, cost-effective cell concepts. The current collectors have a very high internal surface area, which enables a high active material load, while there is no need to compact the electrodes and wind the cell components, which greatly simplifies cell assembly.
Task definition:
A passport electrolyte must first be found for the production of the aluminum foams. For this reason, a parameter screening for electroforming aluminum foils is to be carried out as part of a final thesis.
aluminum foils should be carried out. In particular, the electrolyte composition and other parameters such as current density or temperature are in the foreground. Furthermore, the mechanical properties of the foils obtained (e.g. tensile strength) are to be determined and correlated with the deposition parameters.
