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Characterization of a zinc-cerium flow battery

By P.K. Leung, C. Ponce de Leon, C.T.J. Low, A.A. Shah and F.C. Walsh

Abstract

The performance of a divided, parallel-plate zinc–cerium redox flow battery using methanesulfonic acid electrolytes was studied. Eight two and three-dimensional electrodes were tested under both constant current density and constant cell voltage discharge. Carbon felt and the three-dimensional platinised titanium mesh electrodes exhibited superior performance over the 2-dimensional electrodes. The charge and discharge characteristics of the redox flow battery were studied under different operating conditions and Zn/Ce reactant, as well as methansulfonic acid concentration. The cell performance improved at higher operating temperatures and faster electrolyte flow velocities. The number of possible cycles increased at reduced states of charge. During 15 min charge/discharge per cycle experiment, 57 cycles were obtained and the zinc reaction was found to be the limiting process during long term operation

Topics: QC, QD, TK
Year: 2011
OAI identifier: oai:eprints.soton.ac.uk:184975
Provided by: e-Prints Soton
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