Agence Nationale De Valorisation De La Recherche (anvar)

Joel Sarradin

Guy Bronoel

Maurice Bonnemay

Jean-Claude Achard

Jean Claude Achard

Annick Percheron Nee Guegan

Jean Loriers

Louis Schlapbach

Annick Percheron Born Guegen

Suzanne Maximovitch Nee Fabre

The invention relates to lanthanum and nickel based alloys comprising components of the La Ni.sub.5 type where the lanthanum and/or nickel are partially substituted, the substituent element comprising a metal M chosen in the VI or VII group of the elements periodic system and this according to an atomic proportion comprised between 0.1 and 2 relative to nickel, and preferably between 0.5 and 1. The invention relates also to hydrogen electrodes made from such an alloy, and to an alkaline electrode type accumulator comprising such an electrode.

New lanthanum and nickel based alloys, their manufacture and their

The invention relates to accumulators comprising halogen electrodes operating with fused halide based electrolyte. Such accumulators can include an electrochemical chain aluminium/mixture of aluminium halide and alkalin metal halide/metallic derivatives introduced into graphite. Application to the constitution of accumulators including halogen electrodes for considerable storage of halogen.

Accumulators including halogen electrodes operating with fused halide

The invention relates to electro materials based on lanthanum and nickel having a formula close to LaNi.sub.5 in which one of the components is partially substituted by a metal selected from those in groups Ia, II, III, IV and Va of the periodic table of elements, and other than lanthanides, in an atomic proportion which is not zero, being higher than 0.1% and lower than 25%, and preferbly from 0.5% to 15% with respect to the lanthanum.

Electrode materials based on lanthanum and nickel, and electrochemical

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Elancourt, France

Joel Sarradin