Niobium vapor pressure, high temperature

Later there was a suggestion to employ sulfur and fhen chalcogenides, primarily sulfides, as active materials for the positive electrode. Sulfur is liquid at the working temperature of the battery. The sulfur elecfrode was manufactured from a mixture of sulfur and carbon or in fhe form of a niobium box wifh niobium filler packed wifh sulfur. The high volafilify of sulfur (af 507°C fhe pressure of sulfur vapor is... 

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