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Secondary Microbatteries for Energy Harvesting Micro Systems

Dr Robert Hahn, Head of Portable Power Supply Group Dept.
Fraunhofer IZM
Germany
 
 
This presentation was given at Energy Harvesting & Storage Europe 2010 on May 27, 2010.
 

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Presentation Summary

  • Effective intermediate energy storage is required for all energy harvesting concepts, due to the varying availability of ambient energy and varying energy requirements of the device.
  • Secondary batteries are probably the best electrical buffer since they have a much higher energy density compared to capacitors and sufficient power pulse capability for most applications.
  • A comparison will be made between rechargeable lithium coin, polymer and solid sate cells. The most important points for energy autarkic micro systems like energy density, pulse power capability, long term- and temperature stability will be made.
  • In a second part of the presentation the development of silicon embedded micro batteries at Fraunhofer IZM will be outlined.

Speaker Biography (Robert Hahn)

Robert Hahn received the Ph.D degree in electrical engineering in 1990.
Since 1995 he is with the Fraunhofer-Institute for Reliability and Microintegration (Fraunhofer-IZM) were he is head of the portable power supply group. He has taken over the coordination of several national and European research projects for the development of new micro-batteries, micro-fuel cells and integrated power supplies for micro systems and portable electronics. Dr. Hahn has authored and co-authored numerous papers in the fields of microelectronics packaging and micro energy systems as well as 18 patents in the area of micro energy systems. He received the f-cell award for the Fraunhofer micro fuel cell development in 2005.

Company Profile (Fraunhofer IZM)

Fraunhofer IZM is one of the leading institutes in the fields of system integration technologies, reliability, wafer level integration and heterogeneous integration technology. Fraunhofer IZM has a strong background in electronics packaging technologies and micro energy systems.
System integration and the packaging of electronic products are developed for suppliers and users from the consumer electronics, telecommunications, mechanical engineering and automotive and medical sectors. Our main objective is to support firms in the broad application of microelectronic and micro system technologies.
Fraunhofer IZM represents an efficient research, development and service potential, in most of the electronic packaging sectors. Since 1999 the institute engages in micro energy technologies like integrated micro batteries, micro fuel cells and energy harvesting.