SEPARATEUR POUR ACCUMULATEUR NICKEL-METAL HYDRURABLE

Secondary electrochemical cell with alkaline electrolyte contains at least one positive and at least one negative electrode separated by separator consisting of polyolefin fibres grafted with vinyl monomer is claimed. Cell has means of absorbing and retaining nitrogen in strongly basic medium, i.e....

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Bibliographic Details
Main Authors VIAUD PATRICK, SENYARICH STEPHANE
Format Patent
LanguageFrench
Published 13.11.1998
Edition6
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:Secondary electrochemical cell with alkaline electrolyte contains at least one positive and at least one negative electrode separated by separator consisting of polyolefin fibres grafted with vinyl monomer is claimed. Cell has means of absorbing and retaining nitrogen in strongly basic medium, i.e. pH ≥ 12; the means comprising ability of separator to absorb and retain nitrogen in proportion at least 3 x 10<-4>mol. nitrogen per gram of separator for separators containing at least two polyolefins, and at least 5 x 10<-4> for separators containing only one polyolefin. Also claimed are the separator for the cell and the method of prodn..
Bibliography:Application Number: FR19960012056