Chemistry: electrical current producing apparatus – product – and – Process of cell operation
Patent
1977-05-26
1978-09-12
LeFevour, Charles F.
Chemistry: electrical current producing apparatus, product, and
Process of cell operation
429 58, 429101, 429199, 429229, 429 59, H01M 1044
Patent
active
041139240
ABSTRACT:
An electrochemical cell is described which contains, in a sealed configuration, an anode having a zinc anode-active material, a cathode having a halogen compound cathode-active material, a liquid electrolyte having a gas space above it, and an auxiliary electrode. The auxiliary electrode is made of a carbon-containing hydrophobic material, is adapted to carry a cathodic potential, and is positioned in the cell so as to be partially located in the liquid electrolyte and partially located in the gas space. A method of retarding pressure build-up in the cell also is described. The method involves converting hydrogen gas which is generated in the cell and builds up in the gas space to its ionic state via the formation of an ionic compound and dissolving the compound in the liquid electrolyte by creating a cathodic potential at the auxiliary electrode.
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Exxon Research & Engineering Co.
Glynn Kenneth P.
LeFevour Charles F.
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