Future products in the field of mobile electronic devices, the task of saving electrical energy and the progressively propagated electrical vehicles by the automobile industry are all dependent on the development and production of new efficient battery systems.
These systems have to fulfill diverse technological and physical demands: next to a reasonable lifetime measured by the amount of charging/discharging cycles, they need to be lightweight and small in their geometrical dimensions, material- and production costs need to be low and most of all their electrical performance (energy density and specific capacities) need to be high without compromising any safety issues during practical usage.
One encouraging solution for this task can be battery cells based on solid electrolytes. The usage of multivalent metal ions (e.g. Al3+) is of particular interest. The basic objective of the Fraunhofer IWS in this field is to design and produce a solid electrolyte thin-film-battery with the help of established PVD-coating technologies (e.g. MSD, PLD, IBSD) combined with an innovative cell design.