Chemistry: electrical and wave energy – Processes and products
Patent
1979-11-26
1981-07-07
Valentine, D. R.
Chemistry: electrical and wave energy
Processes and products
204228, 204257, 204268, 204269, 429 14, 429 18, 429 51, 429 88, C25B 904, C25B 1506, H01M 804, H01M 238
Patent
active
042773172
ABSTRACT:
The present invention is directed to a method of minimizing shunt currents in electrochemical devices which have a plurality of cells connected, at least in part, in series and which have a common electrolyte which is fed to at least two of the cells as a shared electrolyte from a common manifold via individual inlet channels, whereby an electrical electrolytic conductive bypass path is created around such cells and through said shared electrolyte, resulting in undesirable shunt currents. This method involves providing electrolyte tunnels which connect the individual inlet channels and applying a protective current through said electrolyte tunnels and thus through said shared electrolyte, the protective current being of a magnitude which effectively at least reduces said shunt currents. Thus, a single protective current may be applied such that shunt currents are minimized, and preferably are totally eliminated. The present invention is also directed to an electrochemical device having means adapted for applying the protective current thereto.
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Grimes Patrick G.
Zahn Markus
Exxon Research & Engineering Co.
Glynn Kenneth P.
Salzman Robert S.
Valentine D. R.
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