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Electrochemically Imprenated Aluminum-Stabilized α-Nickel Hydroxide Electrodes
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1999
Year
Materials ScienceChemical EngineeringElectrical EngineeringHydroxide ElectrodesBattery Electrode MaterialsElectrochemical SocietyEngineeringElectrode-electrolyte InterfaceElectrochemical Power SourceSurface ElectrochemistryAluminum‐substituted HydroxideEnergy StorageBatteriesChemistryElectrochemical ProcessElectrode Reaction MechanismElectrochemistry
Nickel‐positive electrodes obtained by electrochemical impregnation of aluminum‐substituted hydroxide are found to deliver a reversible discharge capacity of . This is much higher than the capacity of hydroxide electrodes [: this work; : Dixit et al., J. Power Sources, 63, 167 (1996)] prepared under identical conditions and pasted electrodes comprising cobalt‐doped nickel hydroxide [: Faure et al., J. Power Sources, 36, 497 (1991)]. These observations suggest that the theoretical target‐capacity for high‐performance nickel‐positive electrodes must be revised from the currently accepted value of (1e exchange) to [ exchange: Corrigan and Knight, J. Electrochem. Soc., 136, 613 (1989)]. ©1999 The Electrochemical Society