SchnelleZelle

Brief description

The “SchnelleZelle” research project aims to improve the fast-charging capability of batteries for stationary storage systems. The Fraunhofer FFB is working together with leading partners from science and industry to improve the performance of lithium-ion batteries in order to shorten charging times and increase charging performance while maintaining safety and service life.

The focus here is on innovative approaches in the areas of cell design, cooling and charging algorithms, which are particularly important for stationary energy storage systems. Improving fast-charging capability is a key issue in both research and industry and is being addressed by various measures. In particular, the development and integration of fast-charging sensors within the battery cells is a promising option.

A holistic approach, ranging from development through to the cell network, should lead to innovations in the areas of cell design, electrode connection and sensor integration. The aim is to significantly increase the charging rate in the range of ten to 80 percent of the state of charge. The use of high-resolution sensors and machine learning algorithms should optimize the charging processes and adapt them to the individual conditions of the batteries.

In addition, the aim is to improve the connection between the electrodes and the cell housing in order to reduce the internal resistance.

The work plan for the “SchnelleZelle” research project is divided into a total of 7 work packages:

WP0 Project management: Coordination of cooperation, content and results

WP1 Benchmarking of the battery cell: Development of a test setup to evaluate the fast-charging capability of cells

WP2 Simulation and sensor technology: Development of fast-charging simulations, control strategies and integrative sensor technology

WP3 Housing detailing and component production: Construction of housings with fast-charging sensor technology

WP4 Prototype production: Construction of a cell prototype

WP5 Development, simulation and prototype construction of a cell network: Construction of a prototype cell network

WP6 Validation of fast-charging capability: testing of cell and cell network

The “SchnelleZelle” research project represents a significant step in the further development of battery technologies and stationary storage systems. As a publicly funded project, “SchnelleZelle” aims to put the knowledge gained in the project into practice together with industrial partners and to develop future products such as more powerful cell housings or battery systems. This strengthens the German mechanical engineering and related industries, particularly in the field of battery technology, and contributes to the strategic safeguarding of jobs in the long term.

By using the results, industrial players will benefit and use their knowledge to prepare for future challenges and disruptive changes. In parallel to practical and industrial implementation, the development and expansion of technological knowledge along the entire value chain plays a central role. The promotion of interdisciplinary research in areas such as cell design, sensor technologies or fast-charging algorithms creates a promising basis for follow-up projects and further innovation drivers. The participating institutes will continue to expand their expertise and strengthen their research infrastructure.