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U.S. Department of Energy
Office of Scientific and Technical Information

Sodium sulphur cells. [Carbon tube with solid metal core and liquid metal interface]

Patent ·
OSTI ID:7336005
In a sodium--sulfur cell the cathode current collector in the sulfur/polysulfide cathodic reactant comprises a carbon or graphite tube containing a solid metal, e.g. aluminum, core and a liquid metal, e.g. tin or a tin--lead alloy, as a conducting interface between the carbon or graphite tube and the core. In a preferred construction, the current collector is axially located within a cylindrical electrolyte tube, the space between the electrolyte tube and graphite tube containing the sulfur/polysulfides and a graphite felt. The outer surface of the graphite tube in this case may have grooves or recesses to form a sulfur reservoir. 5 figures.
Assignee:
Electricity Council
Patent Number(s):
US 3982957
OSTI ID:
7336005
Country of Publication:
United States
Language:
English