DOUIN, Myriam; GUERLOU-DEMOURGUES, Liliane; GOUBAULT, Lionel; BERNARD, Patrick; DELMAS, Claude

doi:10.1149/1.2988095

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

DOUIN, Myriam
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Direction de la recherche

GUERLOU-DEMOURGUES, Liliane
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

GOUBAULT, Lionel
Direction de la recherche

Langue

Article de revue

Ce document a été publié dans

Journal of The Electrochemical Society. 2008, vol. 155, n° 12, p. A945-A951

Electrochemical Society

Résumé en anglais

The influence of the electrolyte alkaline ions, potassium, lithium, and sodium, on the efficiency of the Na0.6CoO2 phase, as a conductive additive in the positive nickel oxide electrode, is analyzed in the present paper. Aging tests of the Na0.6CoO2 phase and of the gamma-Co phases, deriving from it, in the three electrolyte components, KOH, NaOH, and LiOH, have shown the presence of topotactic exchange/(de)intercalation reactions of the alkaline ions, occurring within the materials. Electrochemical tests, performed in the various electrolytes, underline an unfavorable effect of lithium ions. The formation of a semiconductive LixCoO2 phase has been identified as responsible for the loss of efficiency of the conductive material, when lithium ions are present in the electrolyte.< Réduire

Mots clés en anglais

Inorganic compounds

Cells

Electrolyte

Alkaline ions

Nickel

Métadonnées

Licence d’utilisation du document

Influence of the alkaline electrolyte on the behavior of Na0.6CoO2 used as conductive additive in positive electrode of Ni-MH cells

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

DOI

Origine

Unités de recherche