Advertisement

Journal of Applied Electrochemistry

, Volume 30, Issue 6, pp 647–656 | Cite as

Regeneration of zinc particles for zinc–air fuel cells in a spouted-bed electrode

  • V. Jiricny
  • S. Siu
  • A. Roy
  • J.W. Evans
Article

Abstract

Fuel cells wherein zinc particles form a negative electrode and a gas-diffusion electrode (air electrode) is the positive electrode, are under development. Such cells are dependent on the regeneration of the zinc particles (and electrolyte). This paper describes experiments on electrolytic cells equipped with spouted bed cathodes for use in this application. Experiments have been carried out on laboratory scale cells to determine the operability of cells for growing 'seed’ particles in the range from 0.4 to 1 mm to measure cell voltage and current efficiency (and thereby energy consumption rate), and to identify a suitable material that could be used as a diaphragm (separating the spouted bed from the oxygen evolving anode). A larger cell, capable of producing up to 10 kg Zn per day, was designed and built. The larger cell was run successfully fifteen times and showed cell voltages and energy consumption rates comparable with those of smaller cells.

fluidised bed fuel cells spouted bed zinc–air zinc electrowinning zinc particles 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    F.G. Will, ‘Recent Advances in Zinc/Air Batteries’, Proceedings of the 13th Annual Battery Conference on Applications and Advances, Long Beach CA, Jan. 1998.Google Scholar
  2. 2.
    G. Savaskan and J.W. Evans, J. Appl. Electrochem. 21 (1991) 105–10.Google Scholar
  3. 3.
    G. Savaskan and J.W. Evans, Battery Using a Metal Particle Bed Electrode, U.S. Patent 5 006 424 (Apr. 1991).Google Scholar
  4. 4.
    G. Savaskan, T. Huh and J.W. Evans, J. Appl. Electrochem. 22 (1992) 909–15.Google Scholar
  5. 5.
    J.C. Salas and J.W. Evans, J. Appl. Electrochem. 24 (1994) 858–62.Google Scholar
  6. 6.
    J.F. Cooper, ‘Continuous-Feed Electrochemical Cell with Non-packing Particulate Electrode’, US Patent 5 434 020 (1995).Google Scholar
  7. 7.
    J.F. Cooper, D. Fleming, D. Hargrove, R. Koopman and K. Petennan, SAE Technical Paper Series (SP-1 105), Paper 951948 (1995), p. 137.Google Scholar
  8. 8.
    T. Huh, G. Savaskan and J. W. Evans, J. Appl. Electrochem. 22 (1992) 916–21.Google Scholar
  9. 9.
    J.C. Salas-Morales, PhD dissertation, University of California, Berkeley (1994).Google Scholar
  10. 10.
    J.C. Salas-Morales, J.W. Evans, O.M.G. Newman and P.A. Adcock, Met. and Mat. Trans. B 28 (1997) 59–68.Google Scholar
  11. 11.
    A. Verma, J.C. Salas-Morales, and J.W. Evans, Met. and Mat. Trans. B 28 (1997) 69–9.Google Scholar
  12. 12.
    F.J. Tamargo and Y. Lefevre, in T. Azakami, N. Masuko, J.E. Dutrizac and E.'Ozberk (Eds), ‘Operational Results for the Latest Cellhouse Built by Asturiana de Zinc’, Zinc & Lead' 95, Min. Mater. Proc. Inst. Japan, Tokyo (1995), pp. 697–706.Google Scholar

Copyright information

© Kluwer Academic Publishers 2000

Authors and Affiliations

  • V. Jiricny
    • 1
  • S. Siu
    • 2
  • A. Roy
    • 2
  • J.W. Evans
    • 2
  1. 1.Institute of Chemical Process FundamentalsPragueCzech Republic
  2. 2.Department of Materials Science and Mineral EngineeringUniversity of CaliforniaBerkeleyUSA

Personalised recommendations