Solid-state batteries

Solid-state Li-ion batteries offer several advantages over conventional storage devices. Due to the all solid nature, these batteries are inherently safe and have the potential to double the volumetric energy density compared to today’s Li-ion batteries

Our current work

The Center focuses on cell design, materials and components development and processability for solid state batteries:

  • Cathode-catholyte composites
  • Flexible thin-film electrolytes
  • High-energy electrolytes
  • Solid-solid-interfaces
  • Li-electrolyte-interfaces
  • Li-metal anodes
  • High-energy cathodes

Especially innovative electrolytes made of thin-film glass ceramics offer many benefits:

  • High ionic conductivities
  • Unmet oxidation stability
  • Non-flammable
  • Stable against dendrite growth

Our competencies

Interface analyses on nanoscale and fundamental electrochemical measurements with latest analytical methods go along with all our developments. Our coating processes are scalable from dip and spin coating to pilot scale roll-to-roll processes und clean room conditions.

  • Wet-chemical coating via slot-die for layer-by-layer cell assembly, e. g. flexible thin-film batteries
  • Solid-state reaction and tape casting or sol-gel coating with adjustable dimensions (100 nm and 1 mm), e. g. NASICON or garnet-type glass ceramic electrolytes
  • Specially modulated hybrid polymers, called ORMOCER®s as bulk electrolytes or bonding agent for interfaces
  • Various substrates, co-sintering (layer-on-layer) and large area as well as continuous coating for glass ceramic electrolytes

Services for our customers

The Center concentrates on new materials and innovative processes to achieve large-scale solid state batteries with a high energy density. Specially modulated ORMOCER®-materials provide a great thermal and chemical stability, as well as high ionic conductivity. Our processing methods are energy- and cost-efficient and adaptable to customized cell designs.