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

Sodium sulphur cells. [current collector design]

Patent ·
OSTI ID:5240911
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 deformable electronic conductor, e.g., graphite felt, 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. 1 figure.
Assignee:
Electricity Council
Patent Number(s):
US 4061840
OSTI ID:
5240911
Country of Publication:
United States
Language:
English