Abstract: Iron electrodes for use in chemoelectric cells are stabilized to provide an ideal discharge curve by adding a small (e.g., at least about 0.05% and preferably from 0.5 to 1% by weight of the iron) amount of lead sulfide.

Abstract: An electrochemical battery including a plurality of modules interconnected electrically in series. Each module comprises a plurality of cells connected electrically in parallel. Each cell includes positive and negative electrodes. An electrolyte supply channel is individually connected to electrolyte spaces in each cell to supply electrolyte thereto. The cells of each module are fluidly interconnected at their lower ends in parallel by means of cross-channels. Optionally, these cells may also be fluidly interconnected at their upper ends in parallel by additional cross-channels.

Abstract: An iron-air battery cell including positive and negative electrodes and an alkaline electrolyte. The positive electrode contains at least one of the metals cobalt, nickel and silver. The negative electrode contains an electrochemically active iron. The electrolyte contains a sulphur-containing compound in a concentration of at least about 10 ppm and up to about 1,000 ppm counted on the weight of the active iron material.

Abstract: The novel cell uses silver oxides as positive electrode material and iron as negative electrode material in an alkaline electrolyte with the silver oxides being reduced to mainly metallic silver during the discharge of the cell. This cell is sealed so as to bring the gases developed in the cell into contact with the negative as well as the positive material thus eliminating the gases. This new sealed alkaline cell gives outstanding performance with respect to energy and power density and cycling life.

Abstract: A battery includes a plurality of bipolar electrodes which include a wall, positive electrode material disposed on one side of the wall, and negative electrode material disposed on another side of the wall. Electrolyte chambers separate the electrodes. At the top of each electrolyte chamber a gas lock is provided. The gas locks are fluidly interconnected by fluid conduits. The conduits communicate with the gas locks at a level disposed below the top of the electrolyte chamber. Pressure build-ups in one electrolyte chamber can thus be distributed to the gas locks of other electrolyte chambers. Hydrophobic plugs can be disposed within the conduits which permit the passage of gas, but restrict the passage of electrolyte.