Electrochemically Imprenated Aluminum-Stabilized α-Nickel Hydroxide Electrodes

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)].