Key Research Areas

Electrochemical micro-storage and harvesting

Energy autarkic microsystems and intelligent, self-sufficient sensor nodes will lead to completely new applications in the future. The power supply required for this must be an integral part of the early stages of development and requires the cooperation of developers, manufacturers and end users.

Energy autarkic microsystems and intelligent, self-sufficient sensor nodes will lead to completely new applications in the future. The energy supply required for this must be an integral part of the early phases of development and requires the cooperation of developers, manufacturers and end users. Micro-batteries and energy harvesting are keywords in this development. Fraunhofer IZM is working on a number of joint projects with partners from industry and other institutes in this field. In particular, the 3D silicon technologies of the WLSI department, but also innovative circuit board and packaging technologies, are used to miniaturise and integrate energy supply systems. In addition, the necessary equipment and facilities are available to supply, modify and test the electrochemically active materials. In addition to R&D services, testing of primary and secondary batteries, consultancy and testing services are offered.

Integrated Micro Batteries

Integrated micro batteries

© Fraunhofer IZM
SEM of coplanar battery. Graphite and lithium cobalt oxide electrodes on both sides of the separator
© Fraunhofer IZM
Prototypes of silicon integrated micro batteries
  • Development of electrode pastes and electrode fabrication technology suited for integrated lithium batteries
  • Anode and cathode material selection, investigation of nano tubes
  • Investigations on diffusion barrier and encapsulation materials for Lithium batteries. Increase of life time
  • Electrochemical simulation of rechargeable lithium batteries
  • Silicon patterning and 3D technology development for high power micro batteries

Services relating to micro energy systems

 

Micro battery

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