ELECTROCHEMICAL DEVICE HAVING MEANS FOR REDUCING SHUNT CURRENT

摘要

An electrochemical device, for example battery 10, has a plurality of cells 12 connected by one or more shared electrolyte manifolds 38(44). A common electrolyte passes through said manifold(s) to provide an electrical electrolytic conductive bypass path around the cells 12, with resultant undesirable shunt currents. At least one annular protective electrode 52,52 min (54, 54 min etc) is supported by the manifold(s) in order to provide a substantially uniform current density profile through the electrolyte in the manifold(s). This substantially uniform current density profile reduces or eliminates the undesirable shunt currents with minimum power consumption.