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Alternative Energy Storage: Aluminum Ion Batteries

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Alternative Energy Storage: Aluminum Ion Batteries
Alternative Energy Storage: Aluminum Ion Batteries

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With the expansion of renewable energies and the growing number of electric vehicles, the global demand for new energy stores is also increasing. Scientists from Freiberg will research this in a joint project of the Federal Ministry of Education and Research.

“Currently lithium-ion technology dominates the market for mobile energy storage as the most powerful system. However, the reserves of the raw material are limited and their use is becoming increasingly expensive. This requires alternative storage technologies and material systems with readily available raw materials and the highest energy densities. This is where the new R2R-Battery project comes in. Together we will develop a concept for the implementation of aluminum-ion batteries in the next three years,”explains Prof. Dirk C. Meyer, director of the Institute for Experimental Physics and the ZeHS as well as the network coordinator. The project is also intended to represent an important milestone for the research work of the Center for Efficient High-Temperature Substance Conversion (ZeHS).Because also in connection with the use of regeneratively generated electricity for high-temperature processes, the storage of energy will be necessary. The project started in early February 2017.

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For the selection of suitable materials, the Freiberg scientists use an algorithm for material evaluation for electrochemical energy storage developed in the BMBF joint project Cry-Phys-Concept. In addition to the material properties, this also evaluates the economic and ecological aspects. Aluminum turned out to be a suitable material: “It is the most common metal in the earth's crust and is easy to manufacture and recycle. In addition, it does not ignite in the air like lithium, which means we can achieve greater safety and process it better,”explains Dr. Tilmann Leisegang, joint manager of the project. In addition, aluminum-ion batteries are cheaper than commercial lithium systems and can store more energy.

A total of nine collaborative partners (Kurt Schwabe Institute for Measurement and Sensor Technology Meinsberg, Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology Dresden, Vowalon GmbH Treuen, Research Institute for Leather, and Kunststoffbahnen Freiberg, the Von Ardenne GmbH Dresden, the Frolyt condensers and construction elements GmbH Freiberg, the society for the promotion of medical, bio and environmental technologies Radeberg and the Cinector GmbH Mittweida) under the direction of the TU Bergakademie Freiberg in the implementation of new post-lithium - Approaches to electrochemical energy storage. The project partners will also present their approach at the jointly planned E-Stor-M (Electrochemical Storage Materials) conference from June 12 to 14 at the TU Bergakademie Freiberg. (sh)

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