Title of article :
The cycle life of 50/50 TiFe alloy electrodes for charge storage
Author/Authors :
Comisso، نويسنده , , N and Davolio، نويسنده , , G and Soragni، نويسنده , , E and Mengoli، نويسنده , , G، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2001
Pages :
9
From page :
92
To page :
100
Abstract :
The evolution of charge capacity with cycle number into 50/50 TiFe intermetallic compound (IMC) has been investigated. It has been found that in lithiated KOH electrolyte the passivation of a TiFe pressed powder electrode is slowed but not eliminated. Mechanical mixing of the IMC with minor amounts of Ni powder results in better cycle life, probably due to the reduction of passivating oxides, electrocatalytically induced by finely divided Ni. However the best improvement of cycle life was obtained from TiFe+Fe composite electrodes. Although the main charge storage route is again hydrogen insertion into TiFe, the onset of passivation of the IMC is significantly delayed by the presence of Fe.
Keywords :
TiFe , FE , electrodes , electrolysis , Batteries , Hydrogen , Hydrides , Intermetallic compounds
Journal title :
Journal of Electroanalytical Chemistry
Serial Year :
2001
Journal title :
Journal of Electroanalytical Chemistry
Record number :
1664802
Link To Document :
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