MINI-SYMPOSIA DETAILS

FGM SERIAL NUMBER:
  17
Title:
  Functionally Graded Structures for Galvanic Cells
Organizer:
  Prof. Monika Willert-Porada
Description:
  Galvanic cells, like e.g., fuel cells, batteries and supercapacitors are build from different functional materials connected to each other via phase boundaries. Quite often all classes of materials - ceramics, metals, polymers - are combined in such systems. The performance of these electrochemical devices is directly related to the number of active contacts between electronic conductors, ionic conductors, catalysts, fuels and electrically insulating materials. Although these different materials are assembled in layers, extended functional and structural gradation is needed in order to adjust transport properties and improve performance of the whole device.

The Mini-Symposium will present State of the Art device concepts for fuel cells, like e.g., Polymer Electrolyte Membrane (PEM), Molten Carbonate Fuel Cells (MCFC) and Solid Oxide Fuel Cells (SOFC), as well as for different batteries and supercapacitors. The role of graded structures for further development in this area will be addressed. In particular, graded porous structures, like in gas diffusion layers and electrodes, and in supercapacitors will be a major topic with respect to performance and long time durability of low and medium temperature devices. High temperature stability will be the focus in case of graded mixed electronic-ionic conductivity in membranes and electrodes for solid oxide fuel cells and of compositional gradients for reduction of thermal stresses between electrodes and interconnector materials. The contributions will include material aspects, electrochemistry, solid state chemistry and performance modeling aspects.
Key Words:
  Fuel cells, Li-ion batteries, MEA's, Membrane Electrode Assemblies, gas diffusion electrodes, membranes, supercaps.
 
Abstracts submitted to this MS:
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