Material development

Service offers

TEM image CVD-carbon-coated battery active material
© Fraunhofer IWS Dresden

TEM image CVD-carbon-coated battery active material

SEM image LTO/CNT nanocomposite
© Fraunhofer IWS Dresden

SEM image LTO/CNT nanocomposite

TEM image porous carbon material
© Fraunhofer IWS Dresden

TEM image porous carbon material

New carbon materials are being developed at the IWS. The range of services for applications in battery and supercap electrodes includes in particular:


Carbon thin films

Thin carbon films are deposited on powders and flat substrates by means of liquid and gas phase processes and enable:

  • reduction of interfacial resistances between active material and metallic current collector
  • electrically and ionically conductive encapsulation of active materials


Carbon nanomaterials

Carbon nanotubes (CNTs) are unique conductive additives due to their structure and are produced, functionalized and processed at the IWS. Examples are:

  • vertically aligned CNTs as 3d-current collector
  • highly conductive composites made of CNTs and active materials
  • CNTs as additives in highly efficient electrodes


Porous carbons and carbon/Si composites

Carbon and carbon/Si composites with tailored porosity are fabricated by an innovative template process for battery applications.

  • cost-efficient basic materials
  • carbonization and template removal in one process step
  • high surfaces up to 3000 m2/g
  • defined meso- and macropores between 5 und 150 nm