| abstract |
An electrochemical cell having an anode, a cathode and an electrolyte is made by inserting an anode and a cathode, in any order, into a housing, adding electrolyte, and then completing the cell. In accordance with the present invention, the cathode includes a solid material which is changed to a non-solid state upon the addition of electrolyte to the cell and the electrolyte is added to the cell after the insertion of the cathode, so as to increase the porosity of the cathode, said solid material being frozen carbon dioxide, frozen water, a frozen solution of the electrolytic solid or the electrolytic solid. |