Metal halogen electrochemical cell

DETAILED DESCRIPTION OF THE INVENTION Turning now to the sole FIGURE of the drawing, there is shown one embodiment of the cell of the present invention.
As illustrated in the drawing, an electrochemical cell of the present invention comprises a metal anode 10 disposed in a container 12 containing aqueous electrolyte 14.
The metal anode in accordance with the present invention preferably is selected from zinc and cadmium.
It should be noted, however, that it is not absolutely essential that the metal anode be formed solely of zinc or cadmium.
Indeed, inert wire mesh or various forms of porous carbon materials upon which zinc or cadmium may be plated can serve very well in forming zinc or cadmium electrode.
Thus, as is conventional practice, the terms "zinc electrode" and "bromine electrode" are not intended to imply that the electrodes are formed from these materials exclusively; but, are used merely to indicate the electrochemically active element reacting.
Because cadmium is electrochemically similar to zinc, it is also obvious that the zinc of the electrode and the electrolyte can be replaced by cadmium.
Futhermore, those skilled in the art will appreciate that the complex may be used to drive cells other than disclosed zinc and cadmium cells.
For example, the complexes will be useful in other halogen utilizing cells which may employ titanium, chromium, or hydrogen as an anode.
Although bromine is used throughout this specification and claims, it will be apparent to those skilled in the art that chlorine, iodine, or any combination of bromine, chlorine, and iodine may be substituted for bromine.
Although reference is made to the addition of one additive, a mixture of additives may be used in any one cell.
Furthermore, although reference is made to one counter electrode and one metal electrode, it is obvious that the compounds of the invention are useful in cells which include more than one pair of electrodes and with batteries of two or more cells constructed in accordance with methods known to those skilled in the art