A novel thin film solid oxide fuel cell for microscale energy conversion [electronic resource].

Published:: Washington, D.C : United States. Dept. of Energy. Office of the Assistant Secretary for Defense Programs, 1999.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: 593 Kilobytes pages : digital, PDF file
Additional Creators:: Lawrence Livermore National Laboratory, United States. Department of Energy. Office of the Assistant Secretary for Defense Programs, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

A novel approach for the fabrication and assembly of a solid oxide fuel cell system is described which enables effective scaling of the fuel delivery, mainfold, and fuel cell stack components for applications in miniature and microscale energy conversion. Electrode materials for solid oxide fuel cells are developed using sputter deposition techniques. A thin film anode is formed by codeposition of nickel and yttria-stabilized zirconia (YSZ). This approach provides a mixed conducting interfacial layer between the nickel electrode and electrolyte layer. Similarly, a thin film cathode is formed by co-deposition of silver and yttria-stabilized zirconia. Additionally, sputter deposition of yttria-stabilized zirconia thin film electrolyte enables high quality, continuous films to be formed having thickness on the order of 1-2 {micro}m. This will effectively lower the temperature of operation for the fuel cell stack significantly below the traditional ranges at which solid oxide electrolyte systems are operated (600--1000 C), thereby rendering this fuel cell system suitable for miniaturization. Scaling towards miniaturization is accomplished by utilizing novel micromaching approaches which allow manifold channels and fuel delivery system to be formed within the substrate which the thin film fuel cell stack is fabricated on, thereby circumventing the need for bulky manifold components which are not directly scalable.

Report Numbers:

E 1.99:ucrl-jc-133146
E 1.99: yn0100000
E 1.99: 98-erd-091
98-erd-091
yn0100000
ucrl-jc-133146

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Note:

Published through SciTech Connect.
05/01/1999.
"ucrl-jc-133146"
" yn0100000"
" 98-erd-091"
"YN0100000"
"98-ERD-091"
1999 International Mechanical Engineering Congress and Exposition (IMECE) - American Society of Mechanical Engineers, Nashville, TN (US), 11/15/1999--11/20/1999.
Morse, J D; Jankowiski, A F.

Funding Information:

W-7405-ENG-48

View MARC record | catkey: 14066707