Abstract: An electrochemical cell includes a housing, a fuel electrode comprising a metal fuel; an oxidant electrode spaced from the fuel electrode, having fuel electrode and oxidant facing sides, and a liquid ionically conductive medium for conducting ions between the fuel and oxidant electrodes to support electrochemical reactions thereat. The fuel and oxidant electrodes are configured to, during discharge, oxidize the metal fuel at the fuel electrode and reduce a gaseous oxidant at the oxidant electrode to generate a discharge potential difference therebetween for application to a load. The oxidant electrode includes an active layer configured to participate in the electrochemical reactions, and a current collector electrically coupled to the active layer. The oxidant electrode further includes a graphite layer comprising a mixture of graphite particles and solvophobic binder, the graphite layer providing a surface thereof for exposure to a sealant that adheres the oxidant electrode to the housing.

Abstract: An electrochemical cell includes a housing, a fuel electrode comprising a metal fuel; an oxidant electrode spaced from the fuel electrode, having fuel electrode and oxidant facing sides, and a liquid ionically conductive medium for conducting ions between the fuel and oxidant electrodes to support electrochemical reactions thereat. The fuel and oxidant electrodes are configured to, during discharge, oxidize the metal fuel at the fuel electrode and reduce a gaseous oxidant at the oxidant electrode to generate a discharge potential difference therebetween for application to a load. The oxidant electrode includes an active layer configured to participate in the electrochemical reactions, and a current collector electrically coupled to the active layer. The oxidant electrode further includes a graphite layer comprising a mixture of graphite particles and solvophobic binder, the graphite layer providing a surface thereof for exposure to a sealant that adheres the oxidant electrode to the housing.

Abstract: An oxidant electrode for an electrochemical cell utilizing a fuel electrode comprising a metal fuel and a liquid ionically conductive medium configured to conduct ions between the fuel electrode and the oxidant electrode to support electrochemical reactions at the fuel and oxidant electrodes, includes an active layer configured to participate in electrochemical reactions with the fuel electrode. The oxidant electrode also includes a solvophobic layer between an oxidant-facing side of the oxidant electrode, and the active layer. The solvophobic layer is configured to prevent permeation of the liquid ionically conductive medium therethrough, but permit permeation of a gaseous oxidant therethrough. The oxidant electrode further includes a reinforcement layer at the oxidant-facing side, configured to prevent a distortion of the solvophobic layer therethrough, towards the oxidant-facing side. The reinforcement layer is permeable to the gaseous oxidant.