Speaker
Description
Stationary Battery Energy Storage Systems (BESS) in the large scale will play an essential role in near future energy supply. The corresponding market numbers indicate that BESS becomes more and more attractive, even in the economically point of view. Nowadays the marked is clearly dominated by Li-Ion technology. Driven by the mobile application marked, this technology reached an impressive technological maturity at attractive costs at the same time. However, some restrictions such as a shortage of raw materials, safety issues and physicochemical limits in energy density will stimulate the demand for alternative BESS technologies quickly. So called post-Li-ion technologies are inevitable for solving the mentioned limitations connected to Li-ion cells. One of the most promising candidates for taking over a huge share of BESS installations in the close future are sodium batteries. The substitution of lithium with sodium while simultaneously replacing the liquid electrolyte with a ceramic solid electrolyte is an auspicious alternative. This approach results in a viable sodium-based solid-state cell concept. It promises excellent thermal stability, low flammability, high safety, high specific energy, and long cycle life. The sodium-ion conducting sodium-beta alumina solid electrolyte (BASE), up to now only known for its use in high-temperature applications, is a suitable solid electrolyte candidate for solid-state cells operating also at middle- to low-temperatures. The presentation will give a scientific insight into ongoing R&D activities at Fraunhofer IKTS. Starting at lab scale material science level, battery cell and module developments as well as BMS and system developments will be drawn. Latest results from ongoing industrialization projects will impressively show the potential of IKTS developments.
References
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| Keywords | Energy Storage Systems, Sodium Batteries |
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