Evaluation Methods for Battery Storage Systems

Battery storage systems are increasingly an important part of our everyday lives. Energy storage systems play a key function especially for energy transition. The full penetration of renewable energy into the energy system without storage systems is generally not possible. If, however, an energy system with a renewable share of 65, 80 or 100 percent is set up, this will not succeed without the successive integration of storage systems. Even though the combined use of stationary energy storage and renewable energies in the domestic environment, private households and small businesses can be modified to an energetic and autonomous optimum, this optimum depends largely on the quality and performance of the battery storage systems. Energy storage systems are becoming increasingly important not only for stationary applications in buildings but also affect the mobility sector and its special requirements.The technology of storages, which are convincing due to their high performance, energy density, temperature independence and decreasing costs, can be identified as electrochemical storage. Regarding the operation of these secondary storages, one has to be able to examine the condition of the battery storage without disrupting or damaging the system. The main task of this paper is to present methods and technical conditions to test and evaluate lithium-based batteries reliably under different scenarios and conditions.