Rechargeable metal-air battery

An anode for a metal-air battery comprising in combination:

• a metal anode element comprising a substrate containing a gas permeable layer of metal anode material;
• and
• a continuous wrap of porous eletrolyte separator material having first and second layers and edges connecting said layers surrounding said element,
• said separator material being wettable by liquid electrolyte, absorbent and oxidation-resistant under conditions of operation of a metal-air battery.

A rechargeable metal-air battery comprising:

• metal anode means;
• porous separator means having a first layer and a second layer and a set of edges connecting said layers and forming a continuous wrap surrounding said metal anode means, said first layer being adjacent to the anode means;
• air cathode means;
• cathode gel means sandwiched between the air cathode means and the anode means;
• a liquid electrolyte entrained in the anode separator means;
• and
• a container absent a liquid electrolyte reservoir having a top wall, side walls and a bottom wall which encloses and resiliently presses the anode means, separator means, air cathode means, cathode gel means, and liquid electrolyte together, said bottom wall being in contact with said second layer.

A rechargeable metal-air battery, comprising:

• metal anode means;
• porous anode separator means having first and second layers which sandwich the anode means therebetween and at least one edge which interconnects the first and second layers;
• said anode means and anode separator means each comprise a plurality of respective separate sections which are interconnected together;
• air cathode means;
• and
• a liquid electrolyte entrained in the anode separator means.

A rechargeable metal-air battery, comprising:

• metal anode means comprising an electrically conductive mesh screen substrate and a zinc material packed in the mesh in a semi permeable density, said zinc material being selected from the group consisting of zinc powder flakes, granules, capsules and fiber;
• porous anode separator means having first and second layers which sandwich the anode means therebetween and at least one edge which interconnects the first and second layers;
• air cathode means;
• and
• a liquid electrolyte entrained in the porous anode separator means.