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    STUDIA CHEMIA - Issue no. 1-2 / 1999  
         
  Article:   ELECTROCHEMICAL AND STRUCTURAL CHARACTERISTICS OF NICKEL ELECTRODE ACTIVE MATERIAL.

Authors:  DELIA MARIA CONSTANTIN, ELEONORA MARIA RUS, L. ONICIU.
 
       
         
  Abstract:  Ternary electrodes Ni+Co+Cd, consisting of nickel hydroxide as cathode active material, and with Co and Cd hydroxides as additives were prepared by anodic polarization, in KOH electrolyte, of sintered nickel supports impregnated with mixed metal nitrate solutions. The electrochemical and structural characteristics of these electrodes were investigated by charge-discharge curves in galvanostatic regime, and by X-ray diffraction and scanning electron microscopy, respectively. The coulombic efficiencies determined from charge-discharge curves demonstrated the beneficial effects of LiOH addition to the electrolyte and of Co and Cd hydroxides presence in the active cathode material.  
         
     
         
         
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