HIGHLY DURABLE LOW HYDROGEN OVERVOLTAGE CATHODE AND PREPARATION THEREOF

PURPOSE:To obtain the titled cathode reduced in the deterioration of characteristics under an oxidative atmosphere, in an electrode wherein a part of electrode active metal particles are exposed to the surface of the layer provided on an electrode core, by forming the electrode active metal particle...

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Bibliographic Details
Main Authors ENDOU EIJI, MORIMOTO TAKESHI
Format Patent
LanguageEnglish
Published 18.04.1985
Subjects
APPARATUS THEREFOR
CHEMISTRY
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS
METALLURGY
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Summary:PURPOSE:To obtain the titled cathode reduced in the deterioration of characteristics under an oxidative atmosphere, in an electrode wherein a part of electrode active metal particles are exposed to the surface of the layer provided on an electrode core, by forming the electrode active metal particles from a hydrogen occluding metal. CONSTITUTION:A metal layer 2 is provided on an electrode core 1 and electrode active metal particle 3 are contained in the layer 2 so as to expose a part thereof to the surface of the layer 2. A part or a whole of the electrode active metal particles 3 is formed of a hydrogen occluding metal electrochemically discharging hydrogen and the particle size thereof is set to about 0.1-100mum, the surface porosity thereof to about 20-90% and the ratio thereof in the layer 2 to about 5-80wt%. The layer 2 is pref. the same metal as a part of the component for constituting each particle 3 and the thickness thereof is set to about 20mum-2mm.. The electrode core is pref. prepared by using Fe, an Fe-alloy or an Ni-alloy.
Bibliography:Application Number: JP19830172074