A micro-solid oxide fuel cell system as battery replacement
By A. Bieberle‐Hütter, D. Beckel, Ann Infortuna, U. Muecke, J. Rupp, Ludwig Gauckler, S. Rey-Mermet, Paul Muralt, N. Bieri, N. Hotz and 7 more. 2008
219 citations recorded by the source corpus.
Abstract The concept and the design of a micro-solid oxide fuel cell system is described and discussed. The system in this study is called the ONEBAT system and consists of the fuel cell PEN (positive electrode – electrolyte – negative electrode) element, a gas processing unit, and a thermal system. PEN elements of free-standing multi-layer membranes are fabricated on Foturan ® and on Si substrates using thin film deposition and microfabrication techniques. Open circuit voltages of up to 1.06 V and power of 150 mW cm −2 are achieved at 550 °C. The membranes are stable up to 600 °C. The gas processing unit allows butane conversion of 95% and hydrogen selectivity of 83% at 550 °C in the reformer and efficient after-burning of hydrogen, carbon monoxide, and lower hydrocarbons in the post-combustor. Thermal system simulations prove that a large thermal gradient of more than 500 °C between the hot module and its exterior are feasible. The correlation between electrical power output – system size and thermal conductivity – heat-transfer coefficient of the thermal insulation material are shown. The system design studies show that the single sub-systems can be integrated into a complete system and that the requirements for portable electronic devices can be achieved with a base unit of 2.5 W and a modular approach.
Subfields: Catalysis, Electrical and Electronic Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/aa8220e8c7730a2aa828645d6b744f1aba14cd59
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In Catalysis
In Materials Chemistry
Citations in the corpus
- A review of solid oxide fuel cell component fabrication methods toward lowering temperature (2019, background): “Bieberly‐H et al.(84) reported the potential of micro‐SOFC system as an alternative power sources to conventional batteries which producing higher power density and longer durability.”