Battery X-ray image
© K. Dobberke for Fraunhofer ISC

Battery materials – powerful, cheap and long-lasting

The Fraunhofer R&D Center for Electromobility Bavaria at the Fraunhofer ISC Würzburg offers materials and component development for current and future battery and storage systems. The particular focus is on lithium-ion batteries, solid-state batteries and lead-acid batteries.


High-performance lithium-ion batteries are increasingly used in everything from computers, cell phones, multimedia devices, small electrical appliances, small tools, bicycles and electric vehicles to battery storage power plants. With our know-how and our material and process development we support, e.g. automotive suppliers, battery or cell manufacturers and material developers.

Focus areas

The aim of current material developments is to improve battery systems in terms of energy density, service life, operational reliability, cycle stability and costs:

  • Novel, multifunctional hybrid polymers (ORMOCER®) with adjustable properties with regard to use as polymer electrolyte, binder or separator
  • Surface modification of active materials for e.g. longer lifetime, higher energy density, environmentally friendly aqueous processing


  • Regeneration and treatment of active materials from production residues and spent batteries (recycling)
  • Specially developed carbon additives for improved cycle stability and charge acceptance
  • Innovative thin-film systems (electrolytes, protective layers, active materials)

Competences

  • Material development and optimization - active materials, electrolytes, separators, additives
  • State-of-the-art equipment for ideal matching of materials, components and design for optimized battery performance
  • Wide range of wet chemical coating technologies (prototypes, small series up to pilot scale)
  • Coating thicknesses from 100 nm to 1 mm: spray/dip coating, slot die coating, large-area and continuous roll-to-roll coating, etc.

Services

  • Development of starting materials and components such as innovative electrolytes, electrodes, additives, separators, salts and binders for improved battery performance
  • Further development and optimization of existing battery systems
  • Modification of surfaces by functional coatings
  • Screening, testing, analysis and material characterization
  • Cell production for prototypes and small series

Project ASTRABAT: Battery development to advance electromobility in Europe

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The European collaborative project ASTRABAT aims to develop safe and high-energy solid-state lithium-ion battery cells for electric vehicles and other applications in Europe.

The cooperation partners in the ASTRABAT project want to develop optimal solutions for lithium-ion batteries that meet the increasing requirements of the electric vehicle market in Europe with regard to environmentally friendly mobility. The aim of the joint project is to develop a safe, high-energy, sustainable and marketable cell technology that can be manufactured on a large scale in Europe.

Project NeWBat: Recycle lithium-ion batteries using shock waves

In the "NeW-Bat" project, a new recycling process for electrochemical energy storage devices, for lithium-ion batteries, is being developed in which the battery materials are to be recovered and processed in a cost-effective and energy-efficient manner. Pressure waves are used to separate the individual components from one another.

The project is funded under the funding measure "r4 - Innovative Technologies for Resource Efficiency - Research for the Provision of Economically Strategic Raw Materials"

Project ECO COM'BAT: New opportunities to improve the sustainability of high-voltage batteries

Project ECO COM'BAT
© Shutterstock

The aim of the EIT RawMaterials project ECO COM'BAT was to combine environmentally friendly and high-performance materials for the next generation of high-voltage lithium-ion batteries and to improve their production.

ECO COM'BAT was coordinated by the Fraunhofer Institute for Silicate Research ISC and conducted from April 2016 to December 2018. With material manufacturers Arkema and Umicore, cell producers SAFT and Customcells, research and technology organizations Fraunhofer, CEA, CSIC, ENEA, VITO and the Technical University of Darmstadt, the project participants covered all major aspects along the battery value chain.

Your local contact

Guinevere Giffin

Contact Press / Media

Dr. Guinevere Giffin

Head of Lithium-Ion-Technology at FZEB

Fraunhofer-Institut für Silicatforschung ISC
Neunerplatz 2
97082 Würzburg, Germany

Phone +49 931 4100-959

Fax +49 931 4100-570