Electrochemical cell and anode for an electrochemical cell
AssigneeSouth African Inventions Development Corporation
InventorsJohan Coetzer, Michael M. Thackeray
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Abstract
An electrochemical cell and an anode for use in an electrochemical cell are disclosed. The cell in its charged state comprises an anode, a cathode and an electrolyte. The anode comprises a polysulphide or a polyselenide of an alkali metal such as sodium, potassium, or lithium sorbed into a zeolite molecular sieve carrier.
Claims19
An electrochemical cell comprising, in its charged state, an anode, a cathode, and an electrolyte, the anode comprising, as electrochemically active substances, an alkali metal and a chalcogen selected from the group consisting in sulphur and selenium, the alkali metal and chalcogen being combined together to form an alkali metal polysulphide or polyselenide, and being sorbed in a zeolite molecular sieve carrier in finely dispersed form, the chalcogen being held captive in the carrier and the alkali metal being capable of migrating in ionic form from the anode towards the cathode during discharge of the cell.
Dependencies are inferred from the claim text.