Electrochemical cell

Chemistry: electrical current producing apparatus – product – and – Fluid active material or two-fluid electrolyte combination... – Active material in molten state

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429104, H01M 1039

Patent

active

047741562

ABSTRACT:
The invention provides a rechargeable electrochemical cell comprising a cell housing 10 divided by a separator 20 into a pair of electrode compartments, one of which contains an anode substance and the other of which contains an active cathode substance and an electrolyte. The anode and electrolyte are liquid at the operating temperature of the cell and the electrode compartments are each divided into a gas chamber communicating with an electrode chamber. The gas chamber contains an inert gas under pressure and the electrode chamber contains a liquid, namely the anode material or the liquid electrolyte. A wall of each electrode chamber is provided by the separator and each electrode chamber has a closeable bleed outlet 74, 80. The cell has an operative attitude in which said bleed outlets can be used to bleed gas from the associated electrode chambers, and each electrode chamber is in communication with the associated gas chamber, such that the cell in its operative attitude has each electrode chamber completely full of liquid, and each gas chamber containing inert gas under pressure and liquid.

REFERENCES:
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patent: 4044191 (1977-08-01), Evans et al.
patent: 4529676 (1985-07-01), Galloway et al.
patent: 4546055 (1985-10-01), Coetzer et al.
patent: 4560627 (1985-12-01), Bones et al.
patent: 4592969 (1986-06-01), Coetzer et al.
patent: 4626483 (1986-12-01), Bones et al.

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