A new technique for two-dimensional current distribution measurements in electrochemical cells
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A new technique has been developed using a magnetic loop array to measure current distribution in electrochemical cells. The main advantage of this approach is the combination of high spatial and time resolution and stack integration with an easily handled measurement carried out independently of the cell operation. A polymer electrolyte fuel cell (PEFC) of technically relevant dimensions (about 600 cm2 electrode area) with 5 × 8 current sensors has been constructed and operated, thus confirming the feasibility of the measurement technique.
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- 1.K.S. Dhathathreyan, P. Sridhar, G. Sasikumar, K.K. Ghosh, G. Velayutham, N. Rajalakshmi, C.K. Subramaniam and K. Ramya, Int. J. Hydrogen Energy 24 (1999), 1107-1115.Google Scholar
- 2.T.R. Ralph, Platinum Metals Rev. 41(3) (1997) 102-113.Google Scholar
- 3.C.J. Brown, D. Pletcher, F.C. Walsh, J.K. Hammond and D. Robinson, J. Appl. Electrochem. 22 (1992) 613-619.Google Scholar
- 4.S.J.C. Cleghorn, C.R. Derouin, M.S. Wilson and S. Gottesfeld, J. Appl. Electrochem. 28 (1998) 663-672.Google Scholar
- 5.J. Stumper, S.A. Campbell, D.P. Wilkinson, M.C. Johnson and M. Davis, Electrochim. Acta 43 (1998) 3773-3783.Google Scholar
- 6.A.A. Wragg and A.A. Leontaritis, Dechema Monograph 123 (1992) 345-360.Google Scholar
- 7.F. Goodridge, G.M. Mamoor and R.E. Plimley, I. Chem. E. Symp. Ser. 98 (1985) 59-69.Google Scholar
- 8.German Patent Application Nr. 197 50 738 (15 Nov. 1998).Google Scholar
- 9.Siemens Magnetic Sensors Data Book 08.95 (Siemens AG, 1995).Google Scholar