NOVELTY - A metal-gas cell storage battery has at least one battery cell (12), a positive battery terminal (I) and a negative battery terminal (II). The battery cell has two gas cathodes (18,20), a soft pocket (22), a soft pocket closing mechanism and a metallic anode (24). Terminal (I) is electrically connected to the gas cathodes, and terminal (II) is electrically connected to the metallic anode.    USE - As metal-gas cell storage battery, particularly mechanically rechargeable metal-air cell batteries for use in electrically powered cars.    ADVANTAGE - The metal-gas cell storage battery is mechanically refueled by expanding the soft pocket to allow easy removal from the cell of the spent anode and easy insertion into the cell of a fresh anode. The cell battery is conveniently rechargeable by mechanical replacement of anode material. The battery is suitable for rapid refueling and is sufficiently durable for hundreds of refueling operations. The cell battery does not produce electrolyte leak or mist.    DETAILED DESCRIPTION - A metal-gas cell storage battery has at least one battery cell (12), a positive battery terminal (I) electrically connected to gas cathodes (18,20) of the battery cell, and a negative battery terminal (II) electrically connected to a metallic anode (24) of the battery cell. The battery cell has two gas cathodes. Gas cathode (I) is disposed within a rigid planar retaining structure (I), and is permeable to gases but impermeable to liquids. Gas cathode (I) allows the passage of gases into the cell. Gas cathode (II) is disposed within a rigid planar retaining structure (II), and is permeable to air but impermeable to liquids. Gas cathode (II) allows the passage of gases into the cell. Structure (II) is movable with respect to structure (I) between a retaining structure position. Structure (I) is proximate to structure (II) and another retaining structure position.    Structure (I) is spaced apart from structure (II). Gas cathode (II) is electrically connected to gas cathode (I). A soft pocket (22) is disposed between the gas cathodes. The soft pocket has flexible and planar walls (I,II). The walls each have a periphery and a central opening. The periphery of the walls have a top edge. The periphery of wall (I) is connected to the periphery of wall (II) except along the respective top edges. The periphery of wall (I) is attached to structure (I) and the periphery of wall (II) is attached to structure (II).    Structure (I), gas cathode (I), walls (I,II), structure (II) and gas cathode (II) cooperate to define a liquid retaining soft pocket chamber with a soft pocket lower portion, a soft pocket upper portion and a soft pocket top opening, defined between the top edges of the walls. The soft pocket top opening is open in the other retaining structure position and tightly closed in the first retaining structure position. A soft pocket closing mechanism, for securing the structures in position, is provided in the battery cell. The metallic anode is disposed within the soft pocket chamber.    An INDEPENDENT CLAIM is included for zinc-air cell storage battery with several internal battery cells sandwiched between outermost battery cells (I,II), a positive battery terminal (I) electrically connected to the two air cathodes of outermost battery cell (I), and a negative battery terminal (II) electrically connected to the zinc anode of outermost battery cell (II). The tab portion of the anode in each internal cell is electrically connected to the air cathodes of an adjoining battery cell by a conductor material. The conductor material has a portion which is in abutment with the tab portion of the anode.    DESCRIPTION OF DRAWING(S) - The figure shows a perspective view of a metal-gas cell usable in the battery.    Battery cell (12)    Gas cathodes (18,20)    Soft pocket (22)    Metallic anode (24)    Semipermeable membrane (124)