Thin-film heterostructure solid oxide fuel cells
Creators
- 1. Texas Center for Superconductivity and Advanced Materials, University of Houston, Houston, Texas 77204 (United States)
Description
A micro thin-film solid oxide fuel cell (TFSOFC) has been designed based on thin-film deposition and microlithographic processes. The TFSOFC is composed of a thin-film electrolyte grown on a nickel foil substrate and a thin-film cathode deposited on the electrolyte. The Ni foil substrate is then processed into a porous anode by photolithographic patterning and etching to develop pores for gas transport into the fuel cell. A La0.5Sr0.5CoO3 (LSCO) thin-film cathode is then deposited on the electrolyte, and a porous NiO-YSZ cermet layer is added to the anode to improve the electrode performance. The TFSOFC has stably operated in a temperature ranges as low as 480-570 deg. C, significantly lower than bulk SOFC's, and has yielded a maximum output power density of ∼110 mW/cm2 in that temperature range
Additional details
Identifiers
- DOI
- 10.1063/1.1697623;
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 84
- Journal Issue
- 14
- Journal Page Range
- p. 2700-2702
- ISSN
- 0003-6951
- CODEN
- APPLAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36045085
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANODES; CATHODES; CERMETS; COBALT OXIDES; DEPOSITION; ELECTROLYTES; ETCHING; FOILS; LANTHANUM COMPOUNDS; LEAD COMPOUNDS; NICKEL; NICKEL OXIDES; POROUS MATERIALS; POWER DENSITY; SOLID OXIDE FUEL CELLS; STRONTIUM COMPOUNDS; SUBSTRATES; TEMPERATURE RANGE 0400-1000 K; THIN FILMS; VAPOR DEPOSITED COATINGS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COATINGS; COBALT COMPOUNDS; COMPOSITE MATERIALS; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; ELECTRODES; ELEMENTS; FILMS; FUEL CELLS; HIGH-TEMPERATURE FUEL CELLS; MATERIALS; METALS; NICKEL COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; SOLID ELECTROLYTE FUEL CELLS; SURFACE FINISHING; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS
Optional Information
- Notes
- (c) 2004 American Institute of Physics.