| 摘要 |
PROBLEM TO BE SOLVED: To reduce the energy consumption in the manufacture by maintaining the dynamic condition of an alkali metal amalgam forming an anode. SOLUTION: A liquid anode preferably maintains its dynamic condition by the stirring under the atmospheric pressure or the pressure slightly higher than the atmospheric pressure, or the circulation by a pump, or the combination thereof. An anode area and a cathode area are separated from each other by a solid electrolyte which is an alkali metal ion conductor through which helium is impermeable. For example, appropriate solid electrolytes in manufacturing sodium include sodiumβ"-alumina, and sodium p-alumina. The manufacturing temperature is preferably 310-400 deg.C for sodium, and 260-400 deg.C for potassium. The current density during the manufacture is generally >=250 A/m2, but preferably 0.5-10 kA/m2 for sodium, and 0.3-3 kA/m2 for potassium.
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