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

Sodium sulphur cells. [design for current collector]

Patent ·
OSTI ID:6432104
In a sodium sulfur cell, the cathode current collector in the sulfur/polysulfide cathodic reactant comprises an impermeable tube, e.g., a carbon or graphite tube, which is inert to the cathodic reactant and contains a solid metal core, e.g., an aluminum core, and a deformable electronic conductor, e.g., graphite felt, as a conducting interface between the impermeable 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 impermeable tube containing the sulfur/polysulfides and a graphite felt. The outer surface of the impermeable tube in this case has grooves or recesses to form a sulfur reservoir. 1 figure.
Assignee:
Electricity Council
Patent Number(s):
US 4129690
OSTI ID:
6432104
Country of Publication:
United States
Language:
English