Abstract A biogalvanic metal-oxygen cell encased in an oxygenpermeable silicone rubber membrane having one metal anode, two oxygen cathodes disposed on both sides of said anode comprising silver screens to which a catalytically active material is applied, and electrolyte chambers between the anode and the cathodes. The edge of the metal anode is joined to a plastic frame of greater width than the metal anode for the formation of the electrolyte chambers. The marginal areas of the silver screens of the cathodes are free of catalytically active material and are extended across the plastic frame and joined to each other. The silicone rubber membrane encases the cathodes and the marginal areas of the silver screens so as to make close contact, and a silicone rubber jacket is applied over the portion of the silicone rubber membrane which encases the marginal areas of the silver screens.
A METAL-OXYGEN CELL COMPRISING A METAL ANODE, TWO OXYGEN CATHODES DISPOSED ON BOTH SIDES OF SAID ANODE, SAID CATHODES COMPRISING SILVER SCREENS HAVING A CATALYTICALLY ACTIVE MATERIAL DEPOSITED THEREON, THE MARGINAL AREAS OF SAID SCREENS BEING FREE OF CATALYTICALLY ACTIVE MATERIAL AND JOINED TO EACH OTHER, ELECTROLYTE CHAMBERS BETWEEN SAID ANODE AND CATHODES, FORMED BY A PLASTIC FRAME GREATER IN WIDTH THAN SAID ANODE AND JOINED TO SAID ANODE AND CATHODES, AN OXYGEN-PERMEABLE SILICONE RUBBER MEMBRANE ENCASING SAID CATHODES AND THE MARGINAL AREAS OF SAID SILVER SCREENS IN CLOSE CONTACT, AND A
Claim 2
Dependent Claim
92 words
A METAL-OXYGEN CELL COMPRISING A METAL ANODE, TWO OXYGEN CATHODES DISPOSED ON BOTH SIDES OF SAID ANODE, SAID CATHODES COMPRISING SILVER SCREENS HAVING A CATALYTICALLY ACTIVE MATERIAL DEPOSITED THEREON, THE MARGINAL AREAS OF SAID SCREENS BEING FREE OF CATALYTICALLY ACTIVE MATERIAL AND JOINED TO EACH OTHER, ELECTROLYTE CHAMBERS BETWEEN SAID ANODE AND CATHODES, FORMED BY A PLASTIC FRAME GREATER IN WIDTH THAN SAID ANODE AND JOINED TO SAID ANODE AND CATHODES, AN OXYGEN-PERMEABLE SILICONE RUBBER MEMBRANE ENCASING SAID CATHODES AND THE MARGINAL AREAS OF SAID SILVER SCREENS IN CLOSE CONTACT, AND A
Claim 3
Dependent Claim
31 words
The metal-oxygen cell of claim 1 wherein a membrane is provided on the sides of the cathodes facing the metal anode to prevent oxidation products from depositing on the metal anode.
Claim 4
Dependent Claim
11 words
The membrane of claim 2 which is comprised of polyvinyl alcohol.
Claim 5
Dependent Claim
26 words
The metal-oxygen cell of claim 1 wherein the catalytically active material is carbon containing nitrogen bound to said screens by means of a polyvinyl alcohol binder.
Claim 6
Dependent Claim
14 words
The catalytically active material of claim 4 wherein said carbon contains a noble-metal catalyst.
Claim 7
Dependent Claim
11 words
The cell of claim 1 wherein said metal anode comprises aluminum.
Claim 8
Dependent Claim
36 words
The cell of claim 1 wherein the silver screens of the cathodes are provided with a silver strip at the boundary between the marginal areas of the silver screens free of catalyst and the catalyst-containing areas.