Publication

Solid Oxide Fuel Cell

Jan Van Herle, Stefan Diethelm, Antonin Faes, Zacharie Wuillemin, Arata Nakajo
2007
Talks

Abstract

Solid Oxide Fuel Cells (SOFC) is an interdisciplinary technology by excellence, necessitating combined knowledge and R&D from mechanical, chemical, electrical and materials science engineering. At LENI Laboratory at EPFL, SOFC cells and stacks are designed, tested and analysed in collaboration with industry, from small area single cells to now kW-range stacks integrated in a system. The hardware R&D effort is strongly assisted by, and dependent on, modeling activities, for both design (e.g. new geometries) and understanding (e.g. degradation phenomena). This modeling has to occur on different levels, from the electrochemistry on micron-scale, via fluid dynamics on mm-scale, to thermodynamic+economic optimization of an entire system on m-scale. The modeling, finally, is accompanied by validation experiments. The presentation will give an overview of the SOFC research status at LENI with application examples.

Official source

https://infoscience.epfl.ch/entities/publication/9d3a7a95-83f7-4e7a-8adb-8d6ac8411a11

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Jan Van Herle, Stefan Diethelm, Antonin Faes, Zacharie Wuillemin, Arata Nakajo
2007
Talks

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/9d3a7a95-83f7-4e7a-8adb-8d6ac8411a11

About this result

Related concepts (32)

Fuel cell

A fuel cell is an electrochemical cell that converts the chemical energy of a fuel (often hydrogen) and an oxidizing agent (often oxygen) into electricity through a pair of redox reactions. Fuel cells are different from most batteries in requiring a continuous source of fuel and oxygen (usually from air) to sustain the chemical reaction, whereas in a battery the chemical energy usually comes from substances that are already present in the battery. Fuel cells can produce electricity continuously for as long as fuel and oxygen are supplied.

Solid oxide fuel cell

A solid oxide fuel cell (or SOFC) is an electrochemical conversion device that produces electricity directly from oxidizing a fuel. Fuel cells are characterized by their electrolyte material; the SOFC has a solid oxide or ceramic electrolyte. Advantages of this class of fuel cells include high combined heat and power efficiency, long-term stability, fuel flexibility, low emissions, and relatively low cost. The largest disadvantage is the high operating temperature which results in longer start-up times and mechanical and chemical compatibility issues.

Solid oxide electrolyzer cell

A solid oxide electrolyzer cell (SOEC) is a solid oxide fuel cell that runs in regenerative mode to achieve the electrolysis of water (and/or carbon dioxide) by using a solid oxide, or ceramic, electrolyte to produce hydrogen gas (and/or carbon monoxide) and oxygen. The production of pure hydrogen is compelling because it is a clean fuel that can be stored, making it a potential alternative to batteries, methane, and other energy sources (see hydrogen economy).

Related publications (14)

Solid Oxide Fuel Cell

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Roadmap on advanced and / real-time characterisation of solid state materials and devices for energy applications

Up-scaling of electrolyte-supported solid oxide electrolysis cells for CO 2 reduction

Long-horizon forecasting of electrolysis stability from early-stage operating data through temporal learning