Electrochemical cells

Claim 1

AN ELECTROCHEMICAL CELL COMPRISING A HOUSING, A SOLID OXIDIZABLE ACTIVE ANODE MATERIAL WITHIN SAID HOUSING BUT NOT IN ELECTRICAL CONTACT THEREWITH, A COMPOSITE CATHODE STRUCTURE WITHIN SAID HOUSING COMPRISING A FORAMINOUS METALLIC SCREEN COATED WITH A SOLID, POROUS CATHODE MATERIAL SAID SCREEN HAVING SHARP SPIKES AT THE ENDS AT THE PREIMETEER THEREOF WHICH CUT INTO THE WALLS OF SAID HOUSING THEREBY MAKING FIRM MECHAMICAL AND ELECTRICAL CONTACT THEREWITH WHEREBY MAKING FIRM MECHANICAL USED AS THE EXTERNAL CHATHODE WITH SAID ANODE MATERIAL AND TROLYTE BETWEEN AND IN CONTACT WITH SAID ANODE MATERIAL AND SAID COMPOSITE CATHODE STRUCTURE, SAID CATHODE MATERIAL BEING SUFFICIENTLY POROUS TO PERMIT ELECTROLYTE TRANSFER THERETHROUGH, 4, AN ELECTROCHEMICAL CELL COMPRISING A HOUSING, A SOLID OXIDIZABLE ACTIVE ANODE MATERIAL WITHIN SAID HOUSING BUT NOT IN ELECTRICAL CONTACT THEREWITH, A COMPOSITE CATHODE STRUCTURE WITHIN SAID HOUSING COMPRISING A FORAMINOUS METALLIC SCREEN COATED ON THE TOP AND BOTTOM SURFACES THEREOF WITH A SOLID, POROUS CATHODE MATERIAL, SAID SCREEN HAVING SHARP SPIKES AT THE END AT THE PRIMETER THEREOF WHICH CUT INTO THE WALLS OF SAID HOUSING THEREBY MAKING FIRM MECHANICAL AND ELECTRICAL CONTACT THEREWITH, WHEREBY SAID HOUSING CAN BE USED AS THE EXTERNAL CATHODE OF SAID CELL, AND AN ELECTROLYTE BETWEEN AND IN CONTACT WITH SAID ANODE MATERIAL AND SAID COMPOSITE CATHODE STRUCTURE, SAID ELECTROLYTE COMPRISING AN INORGANIC, ELECTROCHEMICALLY REDUCIBLE OXYHALIDE OR THIOHALIDE SOLVENT AND A SOLUTE DISSOLVED THEREIN, SAID SOLVENT BEING ELECTROCHEMICALLY REDUCED UPON THE SURFACE OF SAID CATHODE MATERAIL DURING OPERATION OF SAID CELL, WHEREBY SAID SOLVENT MATERIAL IN CONJUNCTION WITH SAID OXIDIZABLE ANODE MATERIAL IS UTILIZED AS A SOURCE OF ELECTRICAL ENERGY, SAID CATHODE MATERIAL BEING SUFFICIENTLY POROUS TOPERMIT ELECTROLYTE TRANSFER THERETHROUGH.