Chemistry: electrical current producing apparatus – product – and – Sealed cell having gas prevention or elimation means – Prevention or elimination means is one of the cell...
Patent
1978-07-17
1979-09-04
LeFevour, Charles F.
Chemistry: electrical current producing apparatus, product, and
Sealed cell having gas prevention or elimation means
Prevention or elimination means is one of the cell...
429222, 204 21, H01M 1034
Patent
active
041668863
ABSTRACT:
A method for precharging the negative electrode of a nickel-cadmium alkaline storage cell whose electrodes are assembled in an at least partially discharged state, wherein before the first charge of the cell, a calculated quantity of a material is introduced in the cell, such material being irreversibly oxidizable in an alkaline medium at a potential such that it is anodically oxidized before nickel hydroxide without evolving any gas, then the cell is charged in the normal way. The material preferably is an organic material of the general formula C.sub.x H.sub.y O.sub.z ; most preferably where x=n, y=2n+2, and z=1, with n less than 4. This particular class of materials comprises the three saturated mono-alcohols: methanol, ethanol and propanol.
REFERENCES:
patent: 2899480 (1959-08-01), Fleischer
patent: 3713889 (1973-01-01), Lecouffe
patent: 3986893 (1976-10-01), Stephenson
LeFevour Charles F.
Saft-Societe des Accumulateurs Fixes et de Traction
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