German roadmap for battery technologies for ESS - R&D trends and market development

The expansion of fluctuating renewable energy sources will lead to an increasing demand for energy storage solutions in the mid to long term future. Electrochemical storage, in particular Lithium-Ion Batteries as energy storage systems (ESS) have unique potentials to be used in a wide range of applications due to comparably high energy densities and efficiencies. Lithium-Ion Batteries are expected to be competitive with alternative technologies through improved lifetimes in combination with reduced costs and hence to conquer new markets in the future. Fraunhofer ISI has developed three parts of a battery roadmap on ESS from the perspective of German/ European battery experts from science and industries. - The technology roadmap identifies state of the art technologies by different storage size classes and charge/discharge times and projects the expected market entry of alternative energy storage technologies until 2030 based on the currently identified R&D trends. - The product roadmap identifies a number of applications and business cases while differentiating the markets on transmission and distribution grid level. The ESS technologies are considered as a black box. - The integrated roadmap identifies most probable scenarios for battery technologies to substitute existing technologies in selected applications and business cases (e.g. home solar, peak shaving) while considering the key performance parameters that might bring the breakthrough.