Stabilized α ‐ Ni ( OH ) 2 as Electrode Material for Alkaline Secondary Cells
- 1 November 1994
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 141 (11) , 2956-2959
- https://doi.org/10.1149/1.2059264
Abstract
Hydrotalcite-like compounds of formula Ni1-xAlx(OH)2(CO3)x/2·nH2O (x = 0.1 to 0.25), having the same structure as that of α-Ni(OH)2, have been synthesized by substituting nickel hydroxide with aluminum. Of these, the compounds of compositions xâ¥0.2 are found to have prolonged stability in strong alkaline medium. The electrodes comprising stabilized α-Ni(OH)2 of x = 0.2 composition are rechargeable with discharge-capacity values of 240 (±15) mAh-g-1 and are attractive for applications in various alkaline secondary cells employing nickel-positive electrodesKeywords
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