Electrochemical Energy Storage with sufficient capacity and highly efficient charge and discharge characteristics is of enormous strategic importance for mobile, as well as short and medium-term stationary applications. Portable applications require more power and longer operation independent of the electrical grid, and electric cars suffer from the short driving range offered by relatively low amounts of energy stored in batteries and from the high cost of the systems. The amounts of energy generated from sustainable sources fluctuate widely and to some extent unpredictably. Combined with the heterogeneous demands of different users (households, industry, traffic, heat) this leads to a wide range of requirements regarding storage periods, retrieval and consistency of supply. Electrochemical storage is highly to meet this demand with a corresponding range of storage systems and technologies, as well as with options for integrating and networking such systems.
Electrochemical Energy Storage is a highly efficient concept and essential to reaching the ambitious targets of the "Energiewende". The complex processes inside a battery require a comprehensive research approach. This topic addresses aspects ranging from fundamental science like electrochemistry, characterisation and materials development, to cell preparation and assembling from small-scale size and up-scaling to applications and grid integration. The most promising electrochemical concepts will be considered – from lithium-ion batteries, which are already widely used, to next generation technologies, to novel concepts still at the proof-of-concept stage but promising superior performance parameters.