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New European Project Launched To Develop High-energy Solid-state Lithium-ion Battery Cell For The EVs

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The EU-funded project, named ASTRABAT, aims to develop optimal lithium-ion (Li-ion) battery solutions for the increasing demands of the electric vehicle market in particular. The goal is to fulfil Europe's need for a safe, high-energy, sustainable and marketable battery for green mobility that could be manufactured in Europe on a massive scale. As society turns to electric vehicles, this challenge has now become acute, with Asian competitors well ahead in the game.

Led by France's CEA, the 4-year project will focus on developing a better, safe and environmental-friendly cell architecture. This will come with an all solid-state electrolyte design suited to the new high-energy electrode materials and compatible with current mass-production processes.

More specifically, the main objectives of the project are:

1. To develop materials for a solid hybrid electrolyte and electrodes enabling high energy, high voltage and reliable all-solid-state Li-ion cells;
2. To adapt the development of new all-solid-state batteries to a conventional process adopted for manufacturing electrodes in Li-ion cells;
3. To design an all-solid-state-battery architecture for the next generation of 2030 Li-ion batteries;
4. To define an efficient cell architecture to comply with improved safety demands;
5. To generate a new value chain of all-solid-state batteries, including eco-design, end of life and recycling.

The project is run by a consortium of 14 partners from 8 European countries, including leading research centres and universities, as well as companies in the area of battery and energy. These parties have extensive track records in the field of battery and associated technologies, including state of the art electrochemistry and modelling.
The Fraunhofer Institute for Silicate Research ISC in Würzburg with its Research and Development Center for Electromobility FZEB is partner in ASTRABAT. Fraunhofer FZEB is involved in more than a dozen projects in the field of battery research and development at national and European level.

The core component of the ASTRABAT project is the development of a solid state electrolyte with organic and inorganic components. The hybrid approach allows the electrolyte to be optimised for application at the anode/cathode interface. At the same time, the material properties play an essential role in the processability of the components produced from it. The Fraunhofer ISC has taken on the task of developing materials that meet these requirements, thus making an essential contribution to the success of the project and to the development of a European solid state battery.

ASTRABAT is funded by the Innovation and Networks Executive Agency (INEA) of the European Commission, for a total budget of approximately €8 million ($8.88 million). The project is part of a broader drive by the European Union to boost electric mobility in order to help achieve its goal to slash green-house gas emissions by 80-95% by 2050. It is of strategic importance for Europe to come up with a competitive Li-ion battery and become self-sufficient in its energy transition models.

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