Electrochemical cell
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United States of America Patent
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-
Dec 5, 1995
Grant Date -
N/A
app pub date -
Aug 2, 1994
filing date -
Aug 3, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A high temperature rechargeable electrochemical cell has a housing containing an anode and a cathode, and divided by a sodium ion-conducting solid electrolyte separator into an anode compartment and a cathode compartment, containing respectively molten sodium active anode material and active cathode material. The separator is tubular, having a closed end and an open end, and a plurality of circumferentially spaced radially outwardly projecting ribs or lobes. The housing is a tubular canister which is polygonal in cross-section, so that it has a plurality of circumferentially spaced corners corresponding in number to the number of lobes of the separator. The separator is concentrically located in the housing, each lobe of the separator being circumferentially aligned with, and projecting radially from the separator towards, one of said corners.
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