Abstract: An electrochemical cell is constructed with components having spherical, cylindrical, or conical, including truncated conical, geometrical configurations. The components are an anode and an air cathode having the form of an electrolyte container with an endless sidewall bounded by an air permeable exterior surface opposite to a cathodic reaction surface surrounding an internal volume. The air permeable exterior surface is liquid impermeable. The anode extends in the internal volume of the electrolyte container in a confronting and spaced relation from the reaction surface for forming an electrolyte reservoir there between. Electrical conductive terminals are coupled to the cathodic reaction surface and the anode. A battery is formed by a superimposed pair of electrochemical cells as part of an array of cells located in a container for the electrolyte.