Apparatus for reduction of shunt current in bipolar electrochemi

Details Apparatus for reduction of shunt current in bipolar electrochemi Apparatus for reduction of shunt current in bipolar electrochemi

1980-10-14

1983-02-01

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204255, 204279, 429 18, C25B 1506, C25B 1508, C25B 900, H01M 824

Patent

active

043714331

ABSTRACT:
Shunt currents which flow between the electrodes of adjacent cells through the moving conductive fluid and the fluid pool in the manifold of a bipolar cell assembly are minimized by introducing the conductive fluid at the top of an elongated outlet manifold. This results in cascaded flow which interrupts the current path. Shunt currents between the fluid manifold walls of the conductive bipolar elements in the series connected electrochemical cell assemblies are minimized by insulating the manifold walls with insulating, elastomeric sealing grommets. This prevents current flow between the manifold walls through the electrically conductive fluid in the manifold and provides an edgeseal between bipolar plates.

REFERENCES:
patent: 1199472 (1916-09-01), Levin
patent: 1508758 (1924-09-01), Allan
patent: 2717872 (1955-09-01), Zdansky
patent: 4197169 (1980-04-01), Zahn et al.
patent: 4247376 (1981-01-01), Dempsey et al.

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