CSIR-Central Glass & Ceramic Research Institute
A Unit of Council of Scientific and Industrial Research

सीएसआईआर-केंद्रीय काँच एवं सिरामिक अनुसंधान संस्थान
वैज्ञानिक और औद्योगिक अनुसंधान परिषद की एक इकाई
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Solid Oxide Fuel Cell

Except renewable and hydro, all other power sources cause pollution to environment and therefore a shift to hydrogen economy from carbon economy is almost essential. Solid Oxide Fuel Cell (SOFC) is a device that directly converts chemical energy of fuel into electricity via electrochemical reaction.

cell SOFC stack fabricated at CGCRI

The developed cells has the right kind of microstructure with ~ 15 �m thin gas-tight 8 mol% yttria stabilized zirconia (YSZ) electrolyte sandwiched between a 1.5 �m porous anode (Ni-YSZ) that provides the mechanical support on one side and successive layers of ~ 10 �m thick La(Sr)MnO3 (LSM)-YSZ cathode functional layer (CFL) and ~ 50 �m thick LSM porous cathode layer (CL) on the other side. The electrochemical characteristics of single cells have been tested in the laboratory and high current density in the range 1.5 to 2.0 A/cm2 has been obtained at a cell voltage of 0.7V at 8000C which is at par with International standard. Suitable glass-based sealants, an essential component for SOFC stack fabrication has also been developed by CGCRI.

Based on an indigenous (CGCRI developed) counter-flow design with internal gas manifold, SOFC stack components viz. cell holders, grooved bi-polar plates, current collectors are also fabricated using special grade ferritic steel.

Using the fabricated stack components, 10 cm x 10 cm single cells and the developed glass sealants, short working SOFC stacks (upto 10-cell level) operating between 750 to 8000C, has been demonstrated for the first time in India. Till now a maximum power output of ~ 100 W has been obtained from such a 10-cell stack. CGCRI is continuously working to improve the performance of the working stacks.

Cell components fabricated at CGCRI

Demonstration of a 10- cell working SOFC stack

    Updated on: 02-07-2010 18:35 
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