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A novel direct carbon fuel cell concept is presented, utilizing a solid oxide fuel cell system with a high surface area carbon fuel material.

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Abstract

This paper describes a direct carbon fuel cell (DCFC) based on a solid oxide fuel cell (SOFC) system which has been used to assess the performance of a high surface area carbon fuel material. The cell, consisting of a co-fired anode, electrolyte, and cathode, has been produced by standard tape casting methods and is of tubular geometry. The operating conditions of the cell require a 62mol%Li2CO3 and 38mol%K2CO3 eutectic secondary electrolyte and the operation of the cell is described over the temperature range 525–700°C. The cell performance has been examined by standard electrochemical methods.

Key findings

  • The cell performance is examined over a temperature range of 525-700°C.
  • A 62mol%Li2CO3 and 38mol%K2CO3 eutectic secondary electrolyte is required for operation.
  • The cell is produced using standard tape casting methods and has a tubular geometry.

Keywords

AnodeElectrolyteSolid oxide fuel cellCathodeCarbon fibersDirect-ethanol fuel cell

Identifiers

DOI
10.1115/1.2743073
Journal
Journal of Fuel Cell Science and Technology
Year
2006