SODIUM-HALOGEN SECONDARY CELL

摘要

A sodium-halogen secondary cell (10) that includes a negative electrode compartment housing (15) a negative, sodium-based electrode (20) and a positive electrode compartment housing (25) a current collector (30) disposed in a liquid positive electrode solution (35). The liquid positive electrode solution (35) includes a halogen and/or a halide. The cell (10) includes a sodium ion conductive electrolyte membrane (40) that separates the negative electrode (20) from the liquid positive electrode solution (35). Although in some cases, the negative sodium-based electrode (20) is molten during cell operation, in other cases, the negative electrode includes a sodium electrode or a sodium intercalation carbon electrode that is solid during operation.