Agence Nationale De Valorisation De La Recherche (anvar)

Maurice Bonnemay

Guy Bronoel

Joel Sarradin

Suzanne Maximovitch Nee Fabre

Lysiane Angely

Jean Loriers

Louis Schlapbach

Annick Percheron Born Guegen

Gilbert Peslerbe

Jean Claude Achard

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 an improved electrode for an electrochemical generator, said electrode enabling the electrochemical oxidation of hydrogen supplied of the interface of said electrode and an electrolyte. It comprises a nickel-based catalyst formed of particles or crystallites the sizes of which range from about 20 to about 130 Angstroms.

Electrode comprising a nickel based catalyst for electrochemical

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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Boulogne-Billancourt, France

Maurice Bonnemay