An oxidant reduction electrode module for coupling to a cell cover and immersion into an ionically conductive medium of an electrochemical cell, the oxidant reduction electrode module comprising: a housing defining a gaseous oxidant receiving space therein; an oxidant reduction electrode having an oxidant facing side and an ionically conductive medium facing side, the oxidant reduction electrode mounted to said housing such that the oxidant reduction electrode defines a boundary wall for the gaseous oxidant receiving space, with the oxidant facing side facing inwardly to the gaseous oxidant receiving space and the ionically conductive medium facing side facing outwardly for exposure to the ionically conductive medium; a gaseous oxidant inlet and a gaseous oxidant outlet coupled by a gaseous oxidant channel extending through the gaseous oxidant receiving space; and one or more support members positioned within the gaseous oxidant receiving space to define the gaseous oxidant channel between the gaseous oxidant inlet and the gaseous oxidant outlet and through the gaseous oxidant receiving space, to prevent deformation of the oxidant reduction electrode into the gaseous oxidant receiving space when the oxidant reduction electrode is immersed into the ionically conductive medium, and to direct a flow of gaseous oxidant within the gaseous oxidant channel from the gaseous oxidant inlet to the gaseous oxidant outlet; and an electrical conductor provided in a conductor channel and electrically connected to the oxidant reduction electrode; wherein an oxidant is allowed into the gaseous oxidant receiving space via the gaseous oxidant inlet, the oxidant reduction electrode being configured to absorb the gaseous oxidant via the oxidant facing side and reduce the gaseous oxidant during discharge of the electrochemical cell; characterized in that the conductor channel extends upwardly from the top of the housing and is connectable to a connector provided on the cell cover to establish an electrical connection of the oxidant reduction electrode; and in that the gaseous oxidant inlet and gaseous oxidant outlet each extends upwardly from the top of the housing and are each connectable to respective connectors provided on the cell cover to establish respective inlet and outlet of the gaseous oxidant. a housing defining a gaseous oxidant receiving space therein; an oxidant reduction electrode having an oxidant facing side and an ionically conductive medium facing side, the oxidant reduction electrode mounted to said housing such that the oxidant reduction electrode defines a boundary wall for the gaseous oxidant receiving space, with the oxidant facing side facing inwardly to the gaseous oxidant receiving space and the ionically conductive medium facing side facing outwardly for exposure to the ionically conductive medium; a gaseous oxidant inlet and a gaseous oxidant outlet coupled by a gaseous oxidant channel extending through the gaseous oxidant receiving space; and one or more support members positioned within the gaseous oxidant receiving space to define the gaseous oxidant channel between the gaseous oxidant inlet and the gaseous oxidant outlet and through the gaseous oxidant receiving space, to prevent deformation of the oxidant reduction electrode into the gaseous oxidant receiving space when the oxidant reduction electrode is immersed into the ionically conductive medium, and to direct a flow of gaseous oxidant within the gaseous oxidant channel from the gaseous oxidant inlet to the gaseous oxidant outlet; and an electrical conductor provided in a conductor channel and electrically connected to the oxidant reduction electrode; wherein an oxidant is allowed into the gaseous oxidant receiving space via the gaseous oxidant inlet, the oxidant reduction electrode being configured to absorb the gaseous oxidant via the oxidant facing side and reduce the gaseous oxidant during discharge of the electrochemical cell; characterized in that the conductor channel extends upwardly from the top of the housing and is connectable to a connector provided on the cell cover to establish an electrical connection of the oxidant reduction electrode; and in that the gaseous oxidant inlet and gaseous oxidant outlet each extends upwardly from the top of the housing and are each connectable to respective connectors provided on the cell cover to establish respective inlet and outlet of the gaseous oxidant.